Oreo 8.1 Update T585XXU4CRJ8 problems - Samsung Galaxy Tab A series Questions & Answers

Hello all
I installed the latest T585XXU4CRJ8 Oreo 8.1 update over Nougat 7 on the SM-T585. (BTU / UK)
Everything went well using Odin and the Oreo stock rom from the Updato website.
Cleared the cache and factory reset from recovery mode as normal practice. Booted up ok.
The problem is the device doesn't recognise the network sim card anymore (worked perfectly on Marshmallow & Nougat).
I've tried factory reset a few times, no difference.
Removed and reinserted the sim, even tried another sim.
Having checked 'about tablet > software details' , carrier is unknown and the IMEI has dissapeared !
I've tried to reinstall Nougat 7 and Marshmallow 6 back on the SM-T585 and Odin fails every time.
Tried 2 computers and 3 different usb cables.
Even trying to reinstall Oreo 8.1 again Odin fails!
Theres no frp lock activated, and the oem unlock tab is checked, usb debugging enabled too.
I've read somewhere Samsung have done something to Oreos BootLoader file to stop people downgrading back to earlier software.
I know its early days, but if anyone can offer any solutions, it'd be appreciated.:good:
How to change the BL file version, so i can reinstall earlier stock roms back?
The Oreo update seems more hassle than its worth and I didnt expect the sim card to be unrecognised once updated, let alone being faced with the puzzle of how to downgrade the software.
Thanks for reading. :good:

I think the problem was I used all four files (AP, BL,CP & CSC) from the Netherlands rom and that's whats screwed the device up!
As in no SIM card acknowledgement. I ran the IMEI number off the rear casing through a blacklist checking site and it came back clean.
After many attempts trying every Odin program variant possible and even tried mixing and matching files from different stock roms ( MM 6.0.1 , N7 and Oreo 8.1). To try and get the network carrier file installed, Odin refused to install anything.
https://desktop.firmware.mobi/device:754/firmware:1660
https://download.chainfire.eu/1069/CF-Root/CF-Auto-Root/CF-Auto-Root-gtaxllte-gtaxlltexx-smt585.zip
https://twrp.me/samsung/samsunggalaxytaba101wifi2016.html
Tried the above routes to root to no avail, but Magisk worked by patching the boot.img file (which worked ok). Then tried Odin to install TWRP recovery, again from the site above, nothing but blue and fuzzy lines on the boot screen. The device wouldn't boot into the OS, had to go straight to download mode. Prior to that, I even installed the TWRP manager apk and connected to wifi to flash the TWRP.img from inside the OS environment and the same happened again with all variants of TWRP! Wouldn't boot, properly, no screen visuals, but lines......
Surely someone else on here has the same device (BTU UK) SM T585 that has a working TWRP recovery?
After many hours, I couldn't get Odin to play ball , so the only option left was to try the route of root, twrp recovery then installing a custom rom from twrp.
(https://forum.xda-developers.com/ga...-ultra-lean-rom-galaxy-tab-10-1-2016-t3467942)
But it's a no go as TWRP wouldn't install properly, I'm totally miffed by the damage the software has done.
Surely just reflashing the CP file should have reinstated the network facility, but it hasn't.
The last resort is for me to wait until Samsung actually release the UK version of Oreo 8.1 and see if I can get the sim card working again.
Moral of the story is wait until a UK version of the update is released, and even then you have to question is it worth it, if Samsung are making bootloader files so no downgrades are possible, nor allowing any modifications.
Hopefully this info may help others out who are thinking of upgrading or having similar issues.
Cheers for reading

tsam19 said:
I think the problem was I used all four files (AP, BL,CP & CSC) from the Netherlands rom and that's whats screwed the device up!
As in no SIM card acknowledgement. I ran the IMEI number off the rear casing through a blacklist checking site and it came back clean.
After many attempts trying every Odin program variant possible and even tried mixing and matching files from different stock roms ( MM 6.0.1 , N7 and Oreo 8.1). To try and get the network carrier file installed, Odin refused to install anything.
https://desktop.firmware.mobi/device:754/firmware:1660
https://download.chainfire.eu/1069/CF-Root/CF-Auto-Root/CF-Auto-Root-gtaxllte-gtaxlltexx-smt585.zip
https://twrp.me/samsung/samsunggalaxytaba101wifi2016.html
Tried the above routes to root to no avail, but Magisk worked by patching the boot.img file (which worked ok). Then tried Odin to install TWRP recovery, again from the site above, nothing but blue and fuzzy lines on the boot screen. The device wouldn't boot into the OS, had to go straight to download mode. Prior to that, I even installed the TWRP manager apk and connected to wifi to flash the TWRP.img from inside the OS environment and the same happened again with all variants of TWRP! Wouldn't boot, properly, no screen visuals, but lines......
Surely someone else on here has the same device (BTU UK) SM T585 that has a working TWRP recovery?
After many hours, I couldn't get Odin to play ball , so the only option left was to try the route of root, twrp recovery then installing a custom rom from twrp.
(https://forum.xda-developers.com/ga...-ultra-lean-rom-galaxy-tab-10-1-2016-t3467942)
But it's a no go as TWRP wouldn't install properly, I'm totally miffed by the damage the software has done.
Surely just reflashing the CP file should have reinstated the network facility, but it hasn't.
The last resort is for me to wait until Samsung actually release the UK version of Oreo 8.1 and see if I can get the sim card working again.
Moral of the story is wait until a UK version of the update is released, and even then you have to question is it worth it, if Samsung are making bootloader files so no downgrades are possible, nor allowing any modifications.
Hopefully this info may help others out who are thinking of upgrading or having similar issues.
Cheers for reading
Click to expand...
Click to collapse
I had the same problem, went from Lineage 14.1 to Oreo stock rom (the flashable one you can find on this site, i flashed also the Bootloader/modem file in the thread). No imei, no baseband. Returned back to lineage and got back imei and baseband, but after my screen was going to sleep (after the regular 1 min) I had only black screen and vertical red lines. I flashed then Resurrection Remix 6.2, Lineage 15, Lineage 16, always the same problem. Then I used Odin and the original firmware of Nougat from SamMobile, at the first attempt i flashed only the AP file. I turned to have the same problem, but this time the lines were white. I flashed all the 4 files again with Odin, problem solved and back to Lineage 14.1 (the only custom rom were everything works)

Domenico F.
What version of TWRP have you installed for the T585 and from what site?
Also what root method did you use?
I have tried all available and all seem corrupt i.e don't install properly, no proper boot up with onscreen options. Just fuzzy lines.
Again root i've tried many, but don't work with this Oreo 8.1., even Magisk is problematic.
I think its pretty sad of Samsung sending out poor quality updates for us to use. Their heading the same way as Apple and the way they control customers.
If I could go back to a custom MM or Nougat, I would. But TWRP / ROOT are an issue. i.e no TWRP no custom rom!
If anyones thinking of updating and reading this topic, stay clear of the Oreo 8.1 update for the SM T585. Once installed theres no turning back.....so it seems
Thanks for replying.

tsam19 said:
Domenico F.
What version of TWRP have you installed for the T585 and from what site?
Also what root method did you use?
I have tried all available and all seem corrupt i.e don't install properly, no proper boot up with onscreen options. Just fuzzy lines.
Again root i've tried many, but don't work with this Oreo 8.1., even Magisk is problematic.
I think its pretty sad of Samsung sending out poor quality updates for us to use. Their heading the same way as Apple and the way they control customers.
If I could go back to a custom MM or Nougat, I would. But TWRP / ROOT are an issue. i.e no TWRP no custom rom!
If anyones thinking of updating and reading this topic, stay clear of the Oreo 8.1 update for the SM T585. Once installed theres no turning back.....so it seems
Thanks for replying.
Click to expand...
Click to collapse
just flash the nougat firmware from SamMobile. You have to flash all the 4 files in the zip you are going to download. AP, CSC, etc. Once you have your tablet completely stock you can install again TWRP and flash whatever CUSTOM rom you want.
I easily rooted the phone with odin flashing only the TWRP in AP box (twrp taken from this post https://forum.xda-developers.com/showpost.php?p=78145080&postcount=160) avoid the auto-reboot. You have to put the tab in DL mode, connect it to pc, start odin flash the twrp in AP file e unselect Auto-reboot. As soon as the process is done you have to log in recovery mode at the first boot with home + power + vol up and flash dm-verity. I rooted with Magisk without any problem just flashing the v17.3. Now i' m back to nougat (from Oreo) and i can install whatever custom rom i want. But honestly the only one fully working is Lineage 14.1. Resurrection remix 6.2 has problem with camera and gps don't lock. Same for Oreo version. Tried Pie, same problem.

Domenico F
Thanks for the info.
I tried to install MM 6.01 & Nougat 7 stock rom and they wouldn't install, no matter what I did. ( see Odin pictures )
The last chance was to try Oreo 8.1 again and I did manage to reflash the 'Netherlands stock Oreo 8.1 rom' (after 10 hours!) using all four files (AP,BL,CP,CSC).
I then reset the device a couple of times via stock recovery. Took the OEM lock off, theres no FRP lock either. Enabled developer mode > debug mode (all the usual setting changes prior to rooting / twrp install).
At this point the imei and sim card network ARE recognised and work on the device as normal.
HOWEVER I found once I rooted by any genuine means > Magisk v16 (patched boot img taken from stock rom) and also the CF gtaxlltex sm t585 auto root method.
And when the device booted back up, the 'imei and sim card' WERE NOT usable, nor recognised, no network...........I also noticed BusyBox wouldn't install at all, message about integrity of root.
Adaway and Lucky Patcher recognised root.
I also then tried installing TWRP 3.0.2.0 -3.2.3.0 from many locations and again, none of them worked at all. Just blue lines, fuzzy screen etc. On some occasions Odin wouldn't even process the files.
I include pictures of the files I used.
Its evident to me that I can use the device normally i.e sim card , make calls, data etc if I don't attempt to install root / twrp recovery.
So no root , no twrp , then no custom rom usable or installable. It sounds like Samsung are out to stop custom software on their products.
If the Netherlands stock rom 'BL' (boot loader) file is encrypted with this new binary v3 or v4 to stop OS modifications. I wouldn't recommend using it when flashing the new Oreo 8.1 rom or future new releases.
The best way is to just use the AP file ONLY and overlap Nougat 7 or MM 6. And because you've kept your original BL from earlier stock roms, it may be possible to downgrade back to MM or Nougat if need be.
Once the latest new Oreo / Pie 'BL files' are used in the Odin flashing process, it causes big problems.
Hopefully, maybe someone smart enough can find away to decipher these new BL files and offer a replacement method. which will allow software downgrades and modifications

tsam19 said:
Domenico F
Thanks for the info.
I tried to install MM 6.01 & Nougat 7 stock rom and they wouldn't install, no matter what I did. ( see Odin pictures )
The last chance was to try Oreo 8.1 again and I did manage to reflash the 'Netherlands stock Oreo 8.1 rom' (after 10 hours!) using all four files (AP,BL,CP,CSC).
I then reset the device a couple of times via stock recovery. Took the OEM lock off, theres no FRP lock either. Enabled developer mode > debug mode (all the usual setting changes prior to rooting / twrp install).
At this point the imei and sim card network ARE recognised and work on the device as normal.
HOWEVER I found once I rooted by any genuine means > Magisk v16 (patched boot img taken from stock rom) and also the CF gtaxlltex sm t585 auto root method.
And when the device booted back up, the 'imei and sim card' WERE NOT usable, nor recognised, no network...........I also noticed BusyBox wouldn't install at all, message about integrity of root.
Adaway and Lucky Patcher recognised root.
I also then tried installing TWRP 3.0.2.0 -3.2.3.0 from many locations and again, none of them worked at all. Just blue lines, fuzzy screen etc. On some occasions Odin wouldn't even process the files.
I include pictures of the files I used.
Its evident to me that I can use the device normally i.e sim card , make calls, data etc if I don't attempt to install root / twrp recovery.
So no root , no twrp , then no custom rom usable or installable. It sounds like Samsung are out to stop custom software on their products.
If the Netherlands stock rom 'BL' (boot loader) file is encrypted with this new binary v3 or v4 to stop OS modifications. I wouldn't recommend using it when flashing the new Oreo 8.1 rom or future new releases.
The best way is to just use the AP file ONLY and overlap Nougat 7 or MM 6. And because you've kept your original BL from earlier stock roms, it may be possible to downgrade back to MM or Nougat if need be.
Once the latest new Oreo / Pie 'BL files' are used in the Odin flashing process, it causes big problems.
Hopefully, maybe someone smart enough can find away to decipher these new BL files and offer a replacement method. which will allow software downgrades and modifications
Click to expand...
Click to collapse
Honestly i think this run for Oreo it's not really worth. I said you what I did and now i have no problems. I'm not in hurry to use Oreo (as stock rom). I think Lineage 14.1 is the most stable and fastest rom i tried till now, and most of all everything is working. I think i'll give a try via Odin to the official stock rom when it will be available for download (i live in Germany) but sadly I don't use most of the Samsung bloatware installed by default.

WRP Oreo 8.1 on Galaxy Tab 10.1 (T585)
Then I've tried
twrp_3.2.3-1_sm-t585_29918 which gives only stripes when booting into recovery
Do I have to flash the stock boot/recovery before flashing this one,
or this is broken, as well.
Many thanks for a hint,
Helmut

Hope this helps.
So, as I was trying to search for my Galaxy Tab A6 (SM-T585) for Deodexed Stock ROM, I stumbled upon this thread https://forum.xda-developers.com/galaxy-tab-a/themes/mod-twrp-odin-t3650215 just follow the instructions to fully flash Oreo. By the way when flashing Root, I would recommend Magisk Beta https://forum.xda-developers.com/apps/magisk/official-magisk-v7-universal-systemless-t3473445
it does not damage the IMEI at all(Thread here, read the comment:https: //forum.xda-developers.com/apps/magisk/official-magisk-v7-universal-systemless-t3473445) . The TWRP, I think we should leave it be, don't flash an update for the TWRP.
Thanks. Hope this helps.

MiaMOTo SU # said:
By the way when flashing Root, I would recommend Magisk Beta https://forum.xda-developers.com/apps/magisk/official-magisk-v7-universal-systemless-t3473445
it does not damage the IMEI at all
Click to expand...
Click to collapse
Neither does a custom recovery, so not sure what your point is?

I mean if your having problems using MAGISK use the beta version

Related

Emergency DL Mode TWRP - Nougat, Chinese version - no network fix

Hi,
1. If somebody experience this issue with lack of netwrok after Nougat full Rom update, like:
https://forum.xda-developers.com/showpost.php?p=71063185&postcount=121
than follow this fix from another thread:
https://forum.xda-developers.com/showpost.php?p=71054990&postcount=1456
for me it all seems to work fine now.
2. If somebody has issues with MiFlash, I think it is actually better to do the flash within first 5-10, after that it gives strange errors. If so, restrt EDL and press flash on MiFlash a bit faster .
Regards
I failed to boot nougat using these steps:
Boot to edl.
Flashed using miflash full b15 file and then b15 twrp file.
Flashed in twrp a2017 N modem.
Then it gets stuck at 5 secs screen and phone just reboots back to edl. Am i doing it wrong?
However it boots to nougat if only flashing just the b15 full.
Hi,
I had stock B13 Chinese. I MiFlahed fastboot_unlock packge,
did fastboot oem unlock,
MiFlashed B15 twrp,
copied NON-HLOS.bin file from Chinese modem(link above) into extracted B15 Full package folder(which replaced exsiting file in there) ,
reset dalvik etc.from twrp,
flashed B15 full which included already new modem file,
I let it boot finally till the end into standard mode.
This way I don't even have twrp now and all works fine.
Regards
RubiCom said:
Hi,
I had stock B13 Chinese. I MiFlahed fastboot_unlock packge,
did fastboot oem unlock,
MiFlashed B15 twrp,
copied NON-HLOS.bin file from Chinese modem(link above) into extracted B15 Full package folder(which replaced exsiting file in there) ,
reset dalvik etc.from twrp,
flashed B15 full which included already new modem file,
I let it boot finally till the end into standard mode.
This way I don't even have twrp now and all works fine.
Regards
Click to expand...
Click to collapse
Hi, what you mean you don't have twrp? Is it possible to install it somehow again? Is it possible to install SuperSU then? I'm asking this because I want to install A2017U B15 firmware (with OTA support) on A2017 (Chinese model with B13, stock recovery and locked bootloader) and just want to be sure in everything before I start Many thanks!
Wuchko said:
Hi, what you mean you don't have twrp? Is it possible to install it somehow again? Is it possible to install SuperSU then? I'm asking this because I want to install A2017U B15 firmware (with OTA support) on A2017 (Chinese model with B13, stock recovery and locked bootloader) and just want to be sure in everything before I start Many thanks!
Click to expand...
Click to collapse
Hi,
If you MiFlash B15 Full package it overwrites recovery partition...it is a full package after all. If you want TWRP on your nougat after that you need to Miflsh the B15 TWRP package. However inside the TWRP package, there is also modem driver file which you need to first replace with the new modem file, same as with B15 FULL package.
It is al soooo simple. I had some issues with MiFlash initially, as I read somewhere to "keep the vol up down, power fo 5 sec, release, wait 5seconds and than flash"
However I had near 100% success rate when I did press the flash button around 2-5 seconds after booting into EDL mode. Once you do oem unlock, the process is simple as burning ISO image on a CD
I have it now without that last step. It is unlocked, but without TWRP. I did however MiFlashed TWRP yesterday and it did work fine than as well. I don't however think I need TWRP anymore. I did Dalvik etc. reset during upgrading to Nougat... and that's all I needed it for. Maybe I'm wrong and I will MiFlash it again some day, but honestly, this was first time I flashed any Android phone as I come from Nokia- Windows Phone and all I wanted is working Daydream, Netflix VR for my long business flights. It works now. The rest I might need I will install from play store.
It does have that message about unlocked bootloader when you boot the phone, but it does not bother me and I read somewhere that it is better not to relock he phone.
How do I even know if it's OTA capable? When I checked updates, it says your phone is up to date.
Regards
Ok, now is everything much more clear to me, thank you!
Please help fellow china version users... @RubiCom
I have flashed b15 and the updated modem for china but my signal is still unusable. It keeps restarting the sim and when I go to sim settings, "com.android.phone" crashes. Some other settings related to calls/sim also crashes.
my sim is working fine when I'm on LOS. I really just want to use stock system since audio isn't fully fixed with LOS.
BTW, i'm already BL unlocked since b13. Do I still have to flash b15 twrp? I mean I could just fastboot flash twrp after installing full b15. Is there something special miflashing the b15 twrp package?
otaconremo said:
Please help fellow china version users... @RubiCom
I have flashed b15 and the updated modem for china but my signal is still unusable. It keeps restarting the sim and when I go to sim settings, "com.android.phone" crashes. Some other settings related to calls/sim also crashes.
my sim is working fine when I'm on LOS. I really just want to use stock system since audio isn't fully fixed with LOS.
BTW, i'm already BL unlocked since b13. Do I still have to flash b15 twrp? I mean I could just fastboot flash twrp after installing full b15. Is there something special miflashing the b15 twrp package?
Click to expand...
Click to collapse
I follow all the steps in original thread and after all everything works (at least for me) . But, it was a little bit complicated to make it work
So, first after unlocking I installed B15 TWRP, then entered into TWRP and deleted cache, dalvik, etc.. After that I put my phone into EDL again and flashed B15 original (I didn't boot phone to OS between flashing ROM's at all). But, on boot B15 original I still had some chinese symbols and I couldn't finish setup (phone stuck at google account setup). So, I repeated this three steps (installation of B15 TWRP, wiping everything in TWRP and installation of B15 original) again. This time I've got "android encrypted" or some similar message on boot B15 original(??!!), but after reboot everything was completely normal (except message that bootloader is unlocked, which is normal). I don't have TWRP, but 2G/3G/4G signal is great on both SIM's without lose and I have official updates. Comparing with chinese MM, this Nougat is far more better and faster, like I have a new phone
Wuchko said:
I follow all the steps in original thread and after all everything works (at least for me) . But, it was a little bit complicated to make it work
So, first after unlocking I installed B15 TWRP, then entered into TWRP and deleted cache, dalvik, etc.. After that I put my phone into EDL again and flashed B15 original (I didn't boot phone to OS between flashing ROM's at all). But, on boot B15 original I still had some chinese symbols and I couldn't finish setup (phone stuck at google account setup). So, I repeated this three steps (installation of B15 TWRP, wiping everything in TWRP and installation of B15 original) again. This time I've got "android encrypted" or some similar message on boot B15 original(??!!), but after reboot everything was completely normal (except message that bootloader is unlocked, which is normal). I don't have TWRP, but 2G/3G/4G signal is great on both SIM's without lose and I have official updates. Comparing with chinese MM, this Nougat is far more better and faster, like I have a new phone
Click to expand...
Click to collapse
I figured out what's wrong my my setup but still I can't find a way to fix this.
It seems that when I use my original sim cards (2 sims with the same provider), they both get disconnected every second.
When I put another sim from another provider, it does work but still my original sim doesn't get signal. even when changing slots.
I'm really confused how to make them work together.
otaconremo said:
I figured out what's wrong my my setup but still I can't find a way to fix this.
It seems that when I use my original sim cards (2 sims with the same provider), they both get disconnected every second.
When I put another sim from another provider, it does work but still my original sim doesn't get signal. even when changing slots.
I'm really confused how to make them work together.
Click to expand...
Click to collapse
That's weird. I'm also using SIM's from same providers, but without any problems.. Don't know what to tell, maybe you can try install B15 TWRP and wipe everything, then install B15 original and try again.. First time I also had some weird problems...
Wuchko said:
That's weird. I'm also using SIM's from same providers, but without any problems.. Don't know what to tell, maybe you can try install B15 TWRP and wipe everything, then install B15 original and try again.. First time I also had some weird problems...
Click to expand...
Click to collapse
this is actually wierd. I had this problem my my sims. And I had flashed this many times already trying out different methods including miflash and even stock flashable zips from draken. all yields to the same results.
Do you have any idea where to tweak carrier settings from system files? i tried *#*#4636*#*# but still fails.
Unfortunately I don't know it. I guess I had plenty of luck flashing these ROM's, considering how many people have problems..

Sim Signal problem lineage 15.1 unofficial

I have note 3 sm-n9005 htle running os lineage 15.1 that made by @haggertk
I have been using lineage 14.1 unofficial made by trader418 and haggertk for months everything was working fine i didn't have any problem then week ago i saw lineage 15.1 so i clean flashed my phone to lineage 15.1 at first everything was working fine then after a few minutes i restarted my phone and then my phone stopped receiving signal
I restarted a few more time times and suddenly signals came back
But then a few hours later same thing happened again
Now every time i restart my phone or battery dies i have to restart my phone serval time till signal comes back
Today i realized every time my phone stops receiving signal phone app (dialler app) crashes when i dial *#06# and auto network registration automatically turns off when i turn it back on it says can't connect to thins network now please try again later. Or when i try to choose my network manually it says error while searching for networks
After a few restarts everything just works fine everything goes back to normal
I've already changed CP and BL serval times to serval different (CP and BL)s it didn't work
Anyone else has this issue?
Or please anyone knows how to fix it?
I'd the same problem with you before. I tried to flash new modem and bootloader (in LOS) but it didn't change. So, this what I did (it quite long but I hit jackpot after that)
1. Download Phronesis Rom (it is custom stock rom, maybe can use another custom stock rom) and put in the internal storage
2. flash TWRP2.8.70
3. you can see instruction on how to flash Phronesis
4. Reboot system
5. Enable Developer option (if it is disable)
6. Flash Bootloader (BL) and Modem (CP)
7. check it back using phone info app (for me, it did work)
8. reboot recovery, flash TWRP 3.2.1.1 again
9. Full wipe
10. Flash LOS and gapps
11. reboot system
hope this will help
azliazmi said:
I'd the same problem with you before. I tried to flash new modem and bootloader (in LOS) but it didn't change. So, this what I did (it quite long but I hit jackpot after that)
1. Download Phronesis Rom (it is custom stock rom, maybe can use another custom stock rom) and put in the internal storage
2. flash TWRP2.8.70
3. you can see instruction on how to flash Phronesis
4. Reboot system
5. Enable Developer option (if it is disable)
6. Flash Bootloader (BL) and Modem (CP)
7. check it back using phone info app (for me, it did work)
8. reboot recovery, flash TWRP 3.2.1.1 again
9. Full wipe
10. Flash LOS and gapps
11. reboot system
hope this will help
Click to expand...
Click to collapse
Why you need phronesis? Only for enabling developer options? Maybe you forgot the critical step of removing battery before entering to download mode to flash BL and CP in ODIN? Because you seem to use a custom ROM only for enabling developer options and checking phone info samsung app (both of which can be done in stock firmware or even LOS itself).
Because I need to flash the modem. I tried flash the modem using ODIN in LOS and RR (both with developer option) but unfortunately failed. That's why I going back to Phronesis, just to flash the modem
azliazmi said:
Because I need to flash the modem. I tried flash the modem using ODIN in LOS and RR (both with developer option) but unfortunately failed. That's why I going back to Phronesis, just to flash the modem
Click to expand...
Click to collapse
I have seen many users flash modem on LOS and RR using ODIN when steps are done correctly. The part confusing me on noth of your posts is you didnt try to check your modem after flashing in LOS (using settings/about or phone info samsung app)? Because if it shows it updated, then it is updated. If not, then you have missed a step. That simple. It cannot be that "it shows modem is updated but somehow it isnt".
I dont think any external step of flashing another custom ROM is necessary. Flashing modem step-by-step procedure is available in many posts of @svbarbosa and @Hereiwas.
I did check the modem after flashing every single time, I flashed with different modem and bootloader, unfortunately the result is same. After failed so many times, than I tried flash Phronesis as my last resort. And I really don't know and understand why my device like that (I follow exactly the procedure as given)
azliazmi said:
I'd the same problem with you before. I tried to flash new modem and bootloader (in LOS) but it didn't change. So, this what I did (it quite long but I hit jackpot after that)
1. Download Phronesis Rom (it is custom stock rom, maybe can use another custom stock rom) and put in the internal storage
2. flash TWRP2.8.70
3. you can see instruction on how to flash Phronesis
4. Reboot system
5. Enable Developer option (if it is disable)
6. Flash Bootloader (BL) and Modem (CP)
7. check it back using phone info app (for me, it did work)
8. reboot recovery, flash TWRP 3.2.1.1 again
9. Full wipe
10. Flash LOS and gapps
11. reboot system
hope this will help
Click to expand...
Click to collapse
Thanks man it worked for me to
Some how lineage 15.1 makes the baseband not work properly and makes unchangeable I tried to change it before it always gave me pass in Odin but never really changed the baseband and I didn't realize that till I tried your method
Now my phone works perfectly
Eleo said:
I have seen many users flash modem on LOS and RR using ODIN when steps are done correctly. The part confusing me on noth of your posts is you didnt try to check your modem after flashing in LOS (using settings/about or phone info samsung app)? Because if it shows it updated, then it is updated. If not, then you have missed a step. That simple. It cannot be that "it shows modem is updated but somehow it isnt".
I dont think any external step of flashing another custom ROM is necessary. Flashing modem step-by-step procedure is available in many posts of @svbarbosa and @Hereiwas.
Click to expand...
Click to collapse
I never check it before but when I red your comment I tried changing baseband and bootloader and then I realized it always gives pass on Odin but it never did really change baseband or bootloader i think the problem is with the lineage 15.1 that makes baseband untouchable
azliazmi said:
I'd the same problem with you before. I tried to flash new modem and bootloader (in LOS) but it didn't change. So, this what I did (it quite long but I hit jackpot after that)
1. Download Phronesis Rom (it is custom stock rom, maybe can use another custom stock rom) and put in the internal storage
2. flash TWRP2.8.70
3. you can see instruction on how to flash Phronesis
4. Reboot system
5. Enable Developer option (if it is disable)
6. Flash Bootloader (BL) and Modem (CP)
7. check it back using phone info app (for me, it did work)
8. reboot recovery, flash TWRP 3.2.1.1 again
9. Full wipe
10. Flash LOS and gapps
11. reboot system
hope this will help
Click to expand...
Click to collapse
I have flash LineageOS 15.1, i also have problem with signal and gsm,after that i flash CP and BL,it was the same.
i go back on stock Rom,download samsung Firmware and flash phone. now if I install Phronesis do i need again to flash CP and BL?
If you are already on stock rom, no need to flash phronesis.
Ok. But I want to install LineageOS, how to fix problem with Gsm network?
Updating BL and CL did not solve the problem. What should I do?
---------- Post added at 02:18 AM ---------- Previous post was at 02:08 AM ----------
One more question: when I go back to stock rom i don't have root anymore but I have installed Twrp recovery. This phonesis rom is nice. I would like to flash my phone with this rom. Do I need root and does gsm network working without installing BL and CL?
I will install this rom from my phone without root from TWRP 3.1.1. Can I do that?
I have the same damn problem!! LineageOS is sooo buggy with SIM mobile signal connection... it just kills it!!! How the hell can I fix this? Where can I get the modem files for Samsung 900V?
Please read thread and see your identical post .
Suggest you stick with stock rom or try your models forum.
https://forum.xda-developers.com/verizon-galaxy-note-3

New S8 User Needing Some Help

Hey Guys,
I just bought the s8 yesterday and realised I did not have the OEM unlock and tried flashing the rom from the guide posted here but it didn't flash via odin because downgrading is not possible. I found the date trick on xda's portal and that worked for me and I flashed TWRP by odin.
I allowed system modifications and wiped all data and install no-verity-opt as well as magisk for root. Phone booted up fine and everything was working, I wanted to go to twrp to just check if it was working and it returned with Only official released binaries are allowed to be flashed and well the phone is soft bricked. I was wondering is there any other way other than restoring stock firmware via odin to fix this?
OEM lock shows off in download mode still, I am waiting for the sammobile firmware (5 more hours lol) to download and just wanted to know this time around, is there a fix that I am missing or a step that I missed out so that I could reboot and twrp stays as well as the phone doesn't get soft bricked as this is my daily driver
ItsmYarD said:
Hey Guys,
I just bought the s8 yesterday and realised I did not have the OEM unlock and tried flashing the rom from the guide posted here but it didn't flash via odin because downgrading is not possible. I found the date trick on xda's portal and that worked for me and I flashed TWRP by odin.
I allowed system modifications and wiped all data and install no-verity-opt as well as magisk for root. Phone booted up fine and everything was working, I wanted to go to twrp to just check if it was working and it returned with Only official released binaries are allowed to be flashed and well the phone is soft bricked. I was wondering is there any other way other than restoring stock firmware via odin to fix this?
OEM lock shows off in download mode still, I am waiting for the sammobile firmware (5 more hours lol) to download and just wanted to know this time around, is there a fix that I am missing or a step that I missed out so that I could reboot and twrp stays as well as the phone doesn't get soft bricked as this is my daily driver
Click to expand...
Click to collapse
Install rmm by pass after root before reboot. This will keep oem unlocked.

[mini-GUIDE] BRICKED / DOWNGRADE / SAME / UPGRADE - also ALTERNATIVE to RSDlite

I am not responsible for your bricked phone or pigeon poo on your toupe. Do at your own risk.
Many thanks to @SupahCookie for idea and motivation!
INTENTIONALLY DOES --NOT-- LOCK BOOTLOADER!!!
Get factory images here:
https://forum.xda-developers.com/mo...ock-images-t3736767/post75236696#post75236696
THIS GUIDE IS FOR FACTORY/STOCK ROMs - NOT YOUR AVERAGE CUSTOM ROM which may not have bootloaders!!! (thanks!!!!! @echo92 )
FIX:
IF YOU ARE ABLE TO GET TO FASTBOOT THIS SHOULD WORK.
IF YOU HAVE 8.x bootloaders AND ARE DOWNGRADING TO 7, use "Alternative to RSDlite" below.
1 boot to win - 7 or 10 works fine.
2 boot phone to fastboot, and connect phone to computer.
3 start RSDlite
pick a ROM. I believe I used a 7.1.1 rom
3Nov9-ADDISON_NPNS26.118-22-2-8_cid50_subsidy-DEFAULT_regulatory-DEFAULT_CFC.xml.zip
RSDlite installed it and fixed the problem.
- -
I was then able to use RSDlite to install @rafikowy 's signed 8.0 . - going up from 7 to 8.
- -
- -
If you are on 8.x bootloaders and want to go to 7.x bootloaders, use this (RSDlite throws an error and stops):
ALTERNATIVE TO RSDlite:
1 I used 7zip to extract that 7.1.1 zip (or any ROM zip) into a folder x,
2 add all the adb and fastboot junk to folder x,
3 add the attached file (rename it to flash.bat) to folder x.
4 boot phone to fastboot and connect to computer.
5 click on flash.bat - it throws a lot of "slot" errors but works just fine.
6 reboot your phone if it hasn't already and go through the 7.x install stuffs.
7 you will not show an IMEI if you are coming from an 8.x bootloader. However, it IS there.
NOTE: you may need to add a line to the flash.bat if there are more/less sparsechunk's in your FACTORY/STOCK ROM...
THIS IS NOT FOR CUSTOM ROMs!!!!!!!
EDIT: 3-8-19: I just did this myself to go back very briefly to 7.1 - be sure you don't flash TWRP to it if your going to take OTAs - it will brick it. boot to TWRP if you need TWRP briefly: fastboot boot twrpimg.img
----------
If you can boot to fastboot screen, you can do anything.
Never OTA a ROM if you have modified recovery (TWRP, etc) or if magisk is present.
https://forum.xda-developers.com/mo...p-flashing-t3813498/post77011495#post77011495
I changed the attached file to add pause and reboot and exit to make it slightly more automated.
I have successfully used this many times going back and forth. If you can boot to fastboot screen, you can save your phone and flash anything you want.
You may wish to advise users that if they downgrade to Nougat not to use Nougat OTA updates. The reason being that a downgraded stock Oreo device may still have the Oreo bootloader on it. Thus, attempting to use Nougat OTA updates may hard brick their device (as the bootloader is likely corrupted, meaning no fastboot).
Users could either use the Feb 2018 NPN26.118-22-2-17 firmware from your link https://mirrors.lolinet.com/firmware/moto/addison/official/RETAIL/ as that was the last Nougat firmware (and thus no Nougat OTA updates) or avoid using OTA updates whilst downgraded.
echo92 said:
You may wish to advise users that if they downgrade to Nougat not to use Nougat OTA updates. The reason being that a downgraded stock Oreo device may still have the Oreo bootloader on it. Thus, attempting to use Nougat OTA updates may hard brick their device (as the bootloader is likely corrupted, meaning no fastboot).
Users could either use the Feb 2018 NPN26.118-22-2-17 firmware from your link https://mirrors.lolinet.com/firmware/moto/addison/official/RETAIL/ as that was the last Nougat firmware (and thus no Nougat OTA updates) or avoid using OTA updates whilst downgraded.
Click to expand...
Click to collapse
Interesting. I used the above GUIDE to go up and down a number of times on my phone (about 20 total) , installing and running on both 7 and 8, and then went down to a Nov 7.1.1 and let it ota all the way up to 8.0 and that is what I am using now. I found that when i used a factory zip, and the above procedure, it corrected the bootloaders to the appropriate version that i was flashing - either RSDlite or the more manual path which ignores the errors worked for me.
Using the above procedure , you get the correct bootloaders, which are in the zip.
Please correct me if i am wrong!
KrisM22 said:
Interesting. I used the above GUIDE to go up and down a number of times on my phone (about 20 total) , installing and running on both 7 and 8, and then went down to a Nov 7.1.1 and let it ota all the way up to 8.0 and that is what I am using now. I found that when i used a factory zip, and the above procedure, it corrected the bootloaders to the appropriate version that i was flashing - either RSDlite or the more manual path which ignores the errors worked for me.
Using the above procedure , you get the correct bootloaders, which are in the zip.
Please correct me if i am wrong!
Click to expand...
Click to collapse
That's intriguing - we saw previously on Z Play that users downgrading their stock firmware (e.g. https://forum.xda-developers.com/moto-z-play/help/hard-brick-moto-z-play-patch-abril-t3782927 )and then using OTA updates hard bricked their device (hence the number of users asking for a blankflash, as fastboot no longer works). I don't know if these users hard bricked by downgrading their firmware too far and then flashed an OTA radically different to their previous firmware, or whether it's a risk that's taken by any downgrading of firmware.
When you used fastboot, did you see any 'security downgrade errors' when you flashed the bootloader, and is your bootloader version now C180, as you've flashed the Oreo OTA?
echo92 said:
That's intriguing - we saw previously on Z Play that users downgrading their stock firmware (e.g. https://forum.xda-developers.com/moto-z-play/help/hard-brick-moto-z-play-patch-abril-t3782927 )and then using OTA updates hard bricked their device (hence the number of users asking for a blankflash, as fastboot no longer works). I don't know if these users hard bricked by downgrading their firmware too far and then flashed an OTA radically different to their previous firmware, or whether it's a risk that's taken by any downgrading of firmware.
When you used fastboot, did you see any 'security downgrade errors' when you flashed the bootloader, and is your bootloader version now C180, as you've flashed the Oreo OTA?
Click to expand...
Click to collapse
YES - that's why I wrote these 3 guides - before, it was quite possible to wind up with a bootloader mix - esp depending on the zip you use! - factory/stock only!!!
I added a line to the guide saying that it is only intended to be used for the factory/stock zips as these have (I believe) the bootloaders appropriate to the ROM.
Many thanks for pursuing this! - I wonder if we'll have to exclude certain ROMs that are in the factory lists?????
echo92 said:
That's intriguing - we saw previously on Z Play that users downgrading their stock firmware (e.g. https://forum.xda-developers.com/moto-z-play/help/hard-brick-moto-z-play-patch-abril-t3782927 )and then using OTA updates hard bricked their device
Click to expand...
Click to collapse
If you have TWRP (or I assume any custom recovery) present when you try to ota, it can download just fine and then reboot to the update. I had TWRP and wound up in a situation where my phone would only boot to twrp no matter what I flashed or restored. I booted phone to fastboot, RSDlite'ed that 11-09-17 factory zip and all was well. In that particular case I did not fully install 7.x but immediately RSDlite'ed rafikowy's 8.0 signed stock and went on with my testing. Since then I always boot to TWRP rather than intalling it and do my thing. (thanks @jceballos )
When you used fastboot, did you see any 'security downgrade errors' when you flashed the bootloader, and is your bootloader version now C180, as you've flashed the Oreo OTA?
Click to expand...
Click to collapse
Sorry - since it throws a million errors I never look at it if it works.
The particular build I am on at the moment - is BL: C1.82
This one started from that Nov '17 build and ota'ed all the way to 8.0 Apr.
I root and unroot as needed per rafikowy's method but using a boot to TWRP - never an install TWRP.
I'll put up a new guide ref ota and recovery and brick.
KrisM22 said:
If you have TWRP (or I assume any custom recovery) present when you try to ota, it can download just fine and then reboot to the update. I had TWRP and wound up in a situation where my phone would only boot to twrp no matter what I flashed or restored. I booted phone to fastboot, RSDlite'ed that 11-09-17 factory zip and all was well. In that particular case I did not fully install 7.x but immediately RSDlite'ed rafikowy's 8.0 signed stock and went on with my testing. Since then I always boot to TWRP rather than intalling it and do my thing. (thanks @jceballos )
Sorry - since it throws a million errors I never look at it if it works.
The particular build I am on at the moment - is BL: C1.82
This one started from that Nov '17 build and ota'ed all the way to 8.0 Apr.
I root and unroot as needed per rafikowy's method but using a boot to TWRP - never an install TWRP.
I'll put up a new guide ref ota and recovery and brick.
Click to expand...
Click to collapse
1) If you have TWRP, then using an OTA will fail - as you've not got stock recovery (and likely other modifications, including possibly a system partition set to read-write status). As you noted, having TWRP seems to cause a bootloop when rebooting - I'm not sure if the OTA sets a boot flag to stay in recovery until the update is completed. For the G4/Plus, there's a possible solution by wiping the misc partition but I don't know if there's a similar partition for Z Play devices: https://forum.xda-developers.com/moto-g4/help/troubleshooting-twrp-boot-loop-ota-t3714325
The only other solution I've seen is a clean flash of the stock ROM to get your device booting properly.
Booting to TWRP rather than flashing would mean your stock recovery is still present on your device. The only downside is if you need to make modifications, you'd need your computer to boot to TWRP.
2)BL C1.82 seems to be the bootloader provided by the Oreo April 2018 security patch update, so your device looks to be on the right bootloader. It's still curious that the Nov 2017 firmware worked whereas countless other 'factory' stock ROMs caused hard bricks when downgraded to and then OTA updates were installed.
As you mentioned, custom ROMs don't have bootloaders and thus don't care about your bootloader version usually (though I've seen some ROMs require a certain bootloader). However, stock ROMs and stock OTA updates do have bootloaders, which is why downgrading can be risky.
echo92 said:
1) If you have TWRP, then using an OTA will fail - as you've not got stock recovery (and likely other modifications, including possibly a system partition set to read-write status). As you noted, having TWRP seems to cause a bootloop when rebooting - I'm not sure if the OTA sets a boot flag to stay in recovery until the update is completed. For the G4/Plus, there's a possible solution by wiping the misc partition but I don't know if there's a similar partition for Z Play devices: https://forum.xda-developers.com/moto-g4/help/troubleshooting-twrp-boot-loop-ota-t3714325
The only other solution I've seen is a clean flash of the stock ROM to get your device booting properly.
Booting to TWRP rather than flashing would mean your stock recovery is still present on your device. The only downside is if you need to make modifications, you'd need your computer to boot to TWRP.
2)BL C1.82 seems to be the bootloader provided by the Oreo April 2018 security patch update, so your device looks to be on the right bootloader. It's still curious that the Nov 2017 firmware worked whereas countless other 'factory' stock ROMs caused hard bricks when downgraded to and then OTA updates were installed.
As you mentioned, custom ROMs don't have bootloaders and thus don't care about your bootloader version usually (though I've seen some ROMs require a certain bootloader). However, stock ROMs and stock OTA updates do have bootloaders, which is why downgrading can be risky.
Click to expand...
Click to collapse
Downgrading is a piece of cake if you don't use RSDlite - it throws an error and stops. Using the bat file it can happily throw all the errors it wants and all I care is at the end I have what I want.
It does indeed change the entire environment when you bat file the zip contents. You can bat file to get from 8 to 7 and then use RSDlite to flash a different 7 OR 8 zip file. There is no resulting difference in whether you RSDlite it or bat file it - the bat file simply comes from the .xml file that is within the zip. There is very little or no difference between that among addison factory/stock zips. Other zips are different (custom ROMs.)
Grab any factory/stock zip for addison and expand it and you will see modems, bootloaders, indeed absolutely everything you would find on that phone if you went to a store and bought it. SupahCookie simply added a couple lock command lines because it was intended for folks who somehow thought that if phone was locked they could take it back to the store and get their money back. Or some such. I found that ATT folk didn't care if you were on CM or whatever if you just needed to swap SIMs or whatever.
I DON'T want to lock the phone as it prevents me from modifying forever. Oh yeah that reminds me I was going to post the obligatory guide (again) about how to flash a white boot logo so you don't get that message - it's still there LOL but since the font is in white, you can't see it.
I have a Moto Z2 Play and used this to get out of a rather sticky situation.. My IEMI shows 0 now and I'm curious if there's a way to fix this? Also, You say you've done OTA updates? My phone is telling my I have some, is it safe to try?
Necrowr said:
I have a Moto Z2 Play and used this to get out of a rather sticky situation.. My IEMI shows 0 now and I'm curious if there's a way to fix this? Also, You say you've done OTA updates? My phone is telling my I have some, is it safe to try?
Click to expand...
Click to collapse
Thanks for feedback and great on success.
IMEI will show zero if using oreo, It will show again if using N. Remember that if you go from O to N you need to use the "Alternative to RSD" as RSD will simply throw an error and stop.
If you have TWRP and/or Magisk you must get rid of them before ota - if twrp present you will soft brick and have to do alternative again - flash a stock recovery. Simply uninstalling/flash magisk will probably not be enough - it will likely d/l but error part way through update. If you are sitting on rafikowy's stock oreo, and haven't modified it, you should be fine. I know Apr and June are out there. I flashed his stock 8.0 and took June fine. Z2 should be no different though of course I can't guarantee it
If you have success, let us know what you have done so others looking in will know. Thanks!
KrisM22 said:
Thanks for feedback and great on success.
IMEI will show zero if using oreo, It will show again if using N. Remember that if you go from O to N you need to use the "Alternative to RSD" as RSD will simply throw an error and stop.
If you have TWRP and/or Magisk you must get rid of them before ota - if twrp present you will soft brick and have to do alternative again - flash a stock recovery. Simply uninstalling/flash magisk will probably not be enough - it will likely d/l but error part way through update. If you are sitting on rafikowy's stock oreo, and haven't modified it, you should be fine. I know Apr and June are out there. I flashed his stock 8.0 and took June fine. Z2 should be no different though of course I can't guarantee it
If you have success, let us know what you have done so others looking in will know. Thanks!
Click to expand...
Click to collapse
I actually flashed to this: ALBUS_C_7.1.1_NPS26.118-24_cid50_subsidy-DEFAULT_regulatory-DEFAULT_CFC.xml.zip Which is a 7.1.1 variant and it is showing 0 when I check settings and when I dial *#06#. However upon connecting to the computer and running mfastboot getvar imei it returned a value. I only did the steps above which would mean I don't have TWRP or Magisk (when I fastboot and click recovery I get "no command")
****** Additional information *********
XT1710-01 Duel Sim Variant
I started your steps, only being able to access fastboot. The device would throw an error (I don't recall exactly but it ended up showing me them in the bootloader logs) whenever I tried to start it, or go to recovery. #DefinitelyThoughtItWasDead
Necrowr said:
I actually flashed to this: ALBUS_C_7.1.1_NPS26.118-24_cid50_subsidy-DEFAULT_regulatory-DEFAULT_CFC.xml.zip Which is a 7.1.1 variant and it is showing 0 when I check settings and when I dial *#06#. However upon connecting to the computer and running mfastboot getvar imei it returned a value. I only did the steps above which would mean I don't have TWRP or Magisk (when I fastboot and click recovery I get "no command")
****** Additional information *********
XT1710-01 Duel Sim Variant
I started your steps, only being able to access fastboot. The device would throw an error (I don't recall exactly but it ended up showing me them in the bootloader logs) whenever I tried to start it, or go to recovery. #DefinitelyThoughtItWasDead
Click to expand...
Click to collapse
What rom was on phone when you got it and what have you done to it? Has it ever run 8.x?
original country of phone?
The bat file will always throw a lot of slot errors.
https://mirrors.lolinet.com/firmware/moto/albus/official/RETUS/
or
https://mirrors.lolinet.com/firmware/moto/albus/official/RETAIL/
might have some stock ROMs of interest...
KrisM22 said:
What rom was on phone when you got it and what have you done to it? Has it ever run 8.x?
original country of phone?
The bat file will always throw a lot of slot errors.
might have some stock ROMs of interest...
Click to expand...
Click to collapse
It had 7.1.1 stock. I rooted it, and then flashed Resurrection Remix (which was yes 8.1 I believe) and the upgraded bootloader. I then found out my service wouldn't work with that.. so I attempted to flash back to stock which gave me a flurry of issues.. eventually getting to nothing but fastboot working. Flashed back to working with your guide to 7.1.1
If it helps in in fastboot it tells me BL: C0.CD
Necrowr said:
It had 7.1.1 stock. I rooted it, and then flashed Resurrection Remix (which was yes 8.1 I believe) and the upgraded bootloader. I then found out my service wouldn't work with that.. so I attempted to flash back to stock which gave me a flurry of issues.. eventually getting to nothing but fastboot working. Flashed back to working with your guide to 7.1.1
If it helps in in fastboot it tells me BL: C0.CD
Click to expand...
Click to collapse
Custom ROMs won't usually update the bootloader (even if they are newer) as stock ROMs typically only have the bootloader firmware.
You could look into flashing the stock Oreo albus 8.0 ROM https://forum.xda-developers.com/z2-play/how-to/fastboot-rom-oreo-retail-via-fastboot-t3786153 or the 8.0 June 2018 firmware https://forum.xda-developers.com/z2-play/how-to/fastboot-rom-albusretail8-0-0opss27-76-t3822195 but please check that firmware has been released for your device variant.
I don't know if updating your baseband to stock Oreo formally may fix your IMEI issue.
Necrowr said:
It had 7.1.1 stock. I rooted it, and then flashed Resurrection Remix (which was yes 8.1 I believe) and the upgraded bootloader. I then found out my service wouldn't work with that.. so I attempted to flash back to stock which gave me a flurry of issues.. eventually getting to nothing but fastboot working. Flashed back to working with your guide to 7.1.1
If it helps in in fastboot it tells me BL: C0.CD
Click to expand...
Click to collapse
"BL: C0.CD" even right after flashing that albus 7.1.1 using "alternative" above?
What happens if you flash one of the oreo roms from the links I gave you above?
Yeah, RR wouldn't change bootloaders... so you upgraded bootloaders independendently?- that could easily lead to a soft brick... -
I read RR on Z2 and it says nothing about bootloaders even though it says 8.1 based, so i wonder if it needs 7.x bootloaders? I did not read entire thread...
In a reverse, I would wonder if you put an 8 on there if you wouldn't see your IMEI. (On the Z if you flash 8 You won't see the IMEI until you return to 7.)(wondering if z2 is reversed)
KrisM22 said:
"BL: C0.CD" even right after flashing that albus 7.1.1 using "alternative" above?
What happens if you flash one of the oreo roms from the links I gave you above?
Yeah, RR wouldn't change bootloaders... so you upgraded bootloaders independendently?- that could easily lead to a soft brick... -
I read RR on Z2 and it says nothing about bootloaders even though it says 8.1 based, so i wonder if it needs 7.x bootloaders? I did not read entire thread...
In a reverse, I would wonder if you put an 8 on there if you wouldn't see your IMEI. (On the Z if you flash 8 You won't see the IMEI until you return to 7.)(wondering if z2 is reversed)
Click to expand...
Click to collapse
Yes, right after flashing that is the BL that fastboot is showing me. I don't recall updating the bootloader so to speak, however RR did require an updated variant of twrp which I flashed 3.2.2 I believe to get (unsure if that would have changed the bootloader or not). I also tried flashing a stock Oreo (which you've stated stock Roms usually only have the bootloaders so maybe somewhere during this process I updated it?). I wish I had all the notes for what I did to give more precise information, but I'm in a position where I really need my phone so I kinda just panicked and started flashing things when my service wouldn't work.
I'm highly considering trying to run an OTA (though very afraid of bricking). - On a side note though, it wouldn't even tell me I had OTA's until I did the steps in the original post here (doing the different 7.1.1. and 8.0 flashes, it wouldn't ever tell me I had updates, and now it does).
*** Edit ***
Looks like I'm able to enter stock recovery, which makes me believe everything is stock at the moment.
Necrowr said:
Yes, right after flashing that is the BL that fastboot is showing me. I don't recall updating the bootloader so to speak, however RR did require an updated variant of twrp which I flashed 3.2.2 I believe to get (unsure if that would have changed the bootloader or not). I also tried flashing a stock Oreo (which you've stated stock Roms usually only have the bootloaders so maybe somewhere during this process I updated it?). I wish I had all the notes for what I did to give more precise information, but I'm in a position where I really need my phone so I kinda just panicked and started flashing things when my service wouldn't work.
I'm highly considering trying to run an OTA (though very afraid of bricking). - On a side note though, it wouldn't even tell me I had OTA's until I did the steps in the original post here (doing the different 7.1.1. and 8.0 flashes, it wouldn't ever tell me I had updates, and now it does).
*** Edit ***
Looks like I'm able to enter stock recovery, which makes me believe everything is stock at the moment.
Click to expand...
Click to collapse
If you flashed a stock O that would have changed bl to O, but doing the above with the stock 7.1.1 would have changed them back to N. No matter (other than academic) that you don't remember the path - flashing a stock anything reverts it to that point in time. However, IMEI may have been moved - don't know. It will likely show on EITHER 7.x or 8.x stock - just don't know which.
If you flash a stock 8.x from those links I gave you above, it should offer you ota, ASSUMING there are any at this point in time(Z has 2). Adding Magisk at any point seems to hose you for receiving any more ota's - don't understand why, even with magisk uninstall, so that would mean going back to the latest stock and losing what you have (which is why I try to take a TBPro and copy that backup to PC (because re-flashing 8.x stock will likely reset internal storage.).
yes, if you enter stock recovery, you are likely at stock, though you could reflash the latest 7 or 8 stock to be sure, depending on which you want to use as base. Since 8 is having security fixes released, I choose 8 and will likely have no more interest (no time!) in 7.
So, ran the OTA and it was fine running the update and staying on N. I also downloaded the OTA for Oreo, when trying to update the recovery error'd out. It looked like the error said "Error in modem unexpected results" or something similar.
Necrowr said:
So, ran the OTA and it was fine running the update and staying on N. I also downloaded the OTA for Oreo, when trying to update the recovery error'd out. It looked like the error said "Error in modem unexpected results" or something similar.
Click to expand...
Click to collapse
did it offer to let you d/l it again? you could try that.
However, there exist O stock zips in those links I gave you so you could just flash the latest...

TWRP, Rooting and Custom Rom HELP SM-T510 Tablet Tab A 10.1

Hey guys, this is my first post. I just bought a Samsung SM-T510 and would like to unlock all the features. I'm currently trying to follow multiple guides on how to do so. To my understanding, my best bet is lineageOs 16. I've been following https://forum.xda-developers.com/gal...-16-0-t3987317 alongside with https://forum.xda-developers.com/gal...howto-t3989361 and I'm pretty confused on the method order i need to follow. What I mean is do I install rom first, TWRP, Magisk etc.?
More guides ive been following:
https://forum.xda-developers.com/gal...-10-1-t3934805
https://forum.xda-developers.com/app...mless-t3473445
https://topjohnwu.github.io/Magisk/i...system-as-root
I see posts saying I need and don't need Multidisabler so I'm confused on what I actually need: https://forum.xda-developers.com/gal...ption-t3963020
Another one: https://forum.xda-developers.com/gal...ption-t3919714
https://forum.xda-developers.com/gal...eries-t3918699
I have so many tabs open currently; I know I'm missing a few important ones.
So given all that info, i think i have all the software to do this between kernels, rom, twrp, odin, magisk, multi disabler? and i think thats all.
My sm-t510 build number is T510XXU2ASK5, looking through the lineage rom guide, I click the link https://samfrew.com/model/SM-T510/ and i see different versions. I'm honestly completely confused about this file and how I'm going to use it. I understand it to be the stock rom? as in factory software? With TWRP too, the numbers don't match my current build number leaving me very confused.
Do I need to downgrade my build number (i don't know if it's even a thing just asking)?
I think i can do everything relatively easy once I have an understanding of what to do first (order of things) and the specific files for the specific steps. When I'm reading these guides, I honestly have no idea which download goes for what. For ex. going back to https://forum.xda-developers.com/gal...-16-0-t3987317 like what do I need to download, the build number listed in notes regarding kernel or go to the download section right below and use that? Or both and if both, how do I use them separately for there a specific purpose? I cannot find anything that makes me feel comfortable rooting/custom rom on my device. Not comfortable in terms of I don't know what I'm doing exactly. I have put days of reading into this and still, I cannot figure out how to do this. I would really appreciate it if someone could help me. This is stressing me out and I would like to get this done before Monday due to me having some serious surgery. The reason being; I won't be as fresh on everything I've read recently.
I'm sorry if this post is choppy and all over the place. I'm just exhausted and clueless at this point. If I left any info out in order for someone to help me please let me know so I can provide it.
EDIT: The TWRP file ends in build number SK1, the file lineage-16.0-20191019-UNOFFICIAL-T510XXU2ASI4.tar.md5 doesn't match the TWRP file as well as my current build number; which ends in SK5. So nothing is matching the 3 last characters in my build number across all guides besides the samfrew link.
Also, I keep seeing i need a .tar TWRP file for recovery (?) but when I unzip both files are .img (named boot/recovery)
You don’t unzip the .tar files. Keep them as is.
secretwolf98 said:
You don’t unzip the .tar files. Keep them as is.
Click to expand...
Click to collapse
I don't get a .tar file until I unzip the folder; I get a filed with .tar.md5
My recommendation would be to first upgrade to T510XXS2ASK1 of the OEM firmware, since that's the latest version for which Samsung has published kernel source. Use the latest release of Odin and install BL, AP and HOME_CSC. After this, unlock the bootloader and prevent VaultKeeper from relocking it by always enabling Debugger Options while connected to the Internet after a factory wipe.
From there, you could just install TWRP, install the latest MultiDisabler, and live with the Samsung firmware. You could even install Magisk to root. However, I prefer a clean Google OS without all the OEM bloatware, so I'd recommend installing the latest Nexus Stock (which includes TWRP and the custom kernel that disables Knox boot security features). Again, use Odin and install it to AP and do a factory wipe in TWRP because file-based encryption is still unsupported on these custom ROMs.
You could install LineageOS instead, but I haven't yet updated that for T510XXS2ASK1. I've just been busy and Andy hasn't been releasing any new LineageOS 16 GSIs. We're also pretty close to releasing a LineageOS 17 build.
fountainb234 said:
I don't get a .tar file until I unzip the folder; I get a filed with .tar.md5
Click to expand...
Click to collapse
Just rename the file cutting off the .md5.
is it possible to downgrade from sk5 to sk1? you cannot upgrade to a later version, and I know downgrading can have reverse effects on the tablet. I have same tablet I would like to know. if I flash sk1 is there a way to fix it if it bricks?
Magendanz said:
My recommendation would be to first upgrade to T510XXS2ASK1 of the OEM firmware, since that's the latest version for which Samsung has published kernel source. Use the latest release of Odin and install BL, AP and HOME_CSC. After this, unlock the bootloader and prevent VaultKeeper from relocking it by always enabling Debugger Options while connected to the Internet after a factory wipe.
From there, you could just install TWRP, install the latest MultiDisabler, and live with the Samsung firmware. You could even install Magisk to root. However, I prefer a clean Google OS without all the OEM bloatware, so I'd recommend installing the latest Nexus Stock (which includes TWRP and the custom kernel that disables Knox boot security features). Again, use Odin and install it to AP and do a factory wipe in TWRP because file-based encryption is still unsupported on these custom ROMs.
You could install LineageOS instead, but I haven't yet updated that for T510XXS2ASK1. I've just been busy and Andy hasn't been releasing any new LineageOS 16 GSIs. We're also pretty close to releasing a LineageOS 17 build.
Click to expand...
Click to collapse
fountainb234 said:
Hey guys, this is my first post. I just bought a Samsung SM-T510 and would like to unlock all the features. I'm currently trying to follow multiple guides on how to do so. To my understanding, my best bet is lineageOs 16. I've been following https://forum.xda-developers.com/gal...-16-0-t3987317 alongside with https://forum.xda-developers.com/gal...howto-t3989361 and I'm pretty confused on the method order i need to follow. What I mean is do I install rom first, TWRP, Magisk etc.?
More guides ive been following:
https://forum.xda-developers.com/gal...-10-1-t3934805
https://forum.xda-developers.com/app...mless-t3473445
https://topjohnwu.github.io/Magisk/i...system-as-root
I see posts saying I need and don't need Multidisabler so I'm confused on what I actually need: https://forum.xda-developers.com/gal...ption-t3963020
Another one: https://forum.xda-developers.com/gal...ption-t3919714
https://forum.xda-developers.com/gal...eries-t3918699
I have so many tabs open currently; I know I'm missing a few important ones.
So given all that info, i think i have all the software to do this between kernels, rom, twrp, odin, magisk, multi disabler? and i think thats all.
My sm-t510 build number is T510XXU2ASK5, looking through the lineage rom guide, I click the link https://samfrew.com/model/SM-T510/ and i see different versions. I'm honestly completely confused about this file and how I'm going to use it. I understand it to be the stock rom? as in factory software? With TWRP too, the numbers don't match my current build number leaving me very confused.
Do I need to downgrade my build number (i don't know if it's even a thing just asking)?
I think i can do everything relatively easy once I have an understanding of what to do first (order of things) and the specific files for the specific steps. When I'm reading these guides, I honestly have no idea which download goes for what. For ex. going back to https://forum.xda-developers.com/gal...-16-0-t3987317 like what do I need to download, the build number listed in notes regarding kernel or go to the download section right below and use that? Or both and if both, how do I use them separately for there a specific purpose? I cannot find anything that makes me feel comfortable rooting/custom rom on my device. Not comfortable in terms of I don't know what I'm doing exactly. I have put days of reading into this and still, I cannot figure out how to do this. I would really appreciate it if someone could help me. This is stressing me out and I would like to get this done before Monday due to me having some serious surgery. The reason being; I won't be as fresh on everything I've read recently.
I'm sorry if this post is choppy and all over the place. I'm just exhausted and clueless at this point. If I left any info out in order for someone to help me please let me know so I can provide it.
EDIT: The TWRP file ends in build number SK1, the file lineage-16.0-20191019-UNOFFICIAL-T510XXU2ASI4.tar.md5 doesn't match the TWRP file as well as my current build number; which ends in SK5. So nothing is matching the 3 last characters in my build number across all guides besides the samfrew link.
Also, I keep seeing i need a .tar TWRP file for recovery (?) but when I unzip both files are .img (named boot/recovery)
Click to expand...
Click to collapse
without reading answers i can say that im with YOU! Im almost 3 days to root my T510! We must RAMDISK YES in Magisk but to do that we need to extract recovery.img (https://www.droidwin.com/install-magisk-in-recovery-root-android/) from stock original ROM T510OXM5CUJ1 and Im stucked at the part NORAMDISK trying to patch recovery.img with Magisk Manager (with recovery mode checked) but i only get the "waiting for device in ADB" and I conect disconect USB C and nothing...Still NO RAMDISK...
I used 3 different ROMS but no lucky and tried with firmware CUJ1 but no lucky again. Without "NORAMDISK: YES" no root...stucked. But i saw a T510 with OrangeFOX!
framC0 said:
without reading answers i can say that im with YOU! Im almost 3 days to root my T510! We must RAMDISK YES in Magisk but to do that we need to extract recovery.img (https://www.droidwin.com/install-magisk-in-recovery-root-android/) from stock original ROM T510OXM5CUJ1 and Im stucked at the part NORAMDISK trying to patch recovery.img with Magisk Manager (with recovery mode checked) but i only get the "waiting for device in ADB" and I conect disconect USB C and nothing...Still NO RAMDISK...
I used 3 different ROMS but no lucky and tried with firmware CUJ1 but no lucky again. Without "NORAMDISK: YES" no root...stucked. But i saw a T510 with OrangeFOX!
Click to expand...
Click to collapse
I just finished flashing the latest Nexus ROM and rooted it with Magisk merely by flashing the Magisk zip file. You can flash the Nexus ROM without first flashing anything else but the latest CUL1 (not CUJ1) stock ROM. Nexus includes both TWRP and gapps. The only time you have to patch things to get Magisk installed is when you are trying to root a stock ROM instead of a custom ROM. Custom ROMs always to the patching for you.
lewmur said:
I just finished flashing the latest Nexus ROM and rooted it with Magisk merely by flashing the Magisk zip file. You can flash the Nexus ROM without first flashing anything else but the latest CUL1 (not CUJ1) stock ROM. Nexus includes both TWRP and gapps. The only time you have to patch things to get Magisk installed is when you are trying to root a stock ROM instead of a custom ROM. Custom ROMs always to the patching for you.
Click to expand...
Click to collapse
Wow i will try this today and will post feedback. Are you on Android 11? Thank You!
UPDATE: So...flashed with T510XXU5CUL1...
From OEM stock firmware:
Unlock bootloader -> done
Hold Vol Up & Vol Down buttons during restart to enter Download mode
Install TWRP to AP with Odin --> twrp-3.6.0_11-2-T510XXU5CUL1-20220218.tar ---> this put the tablet into emergency mode... had to do again "Hold Vol Up & Vol Down buttons during restart to enter Download mode" and reflash it again. stucked at this point. cant flash TWRP with that! Maybe this TWRP file its for Android 11.2 and im on 11?
framC0 said:
Wow i will try this today and will post feedback. Are you on Android 11? Thank You!
UPDATE: So...flashed with T510XXU5CUL1...
From OEM stock firmware:
Unlock bootloader -> done
Hold Vol Up & Vol Down buttons during restart to enter Download mode
Install TWRP to AP with Odin --> twrp-3.6.0_11-2-T510XXU5CUL1-20220218.tar ---> this put the tablet into emergency mode... had to do again "Hold Vol Up & Vol Down buttons during restart to enter Download mode" and reflash it again. stucked at this point. cant flash TWRP with that! Maybe this TWRP file its for Android 11.2 and im on 11?
Click to expand...
Click to collapse
You don't need to flash TWRP if you flash https://forum.xda-developers.com/t/...k-for-2019-galaxy-tab-a-10-1-sm-t510.4234889/ TWRP is built into this ROM. After installing stock CUL1, did you boot it, connect to wifi, skip the rest of setup and then enable Dev mode before rebooting to download and flashing from Odin?
edit: Don't attempt to download from the regular download link. Use the link under Build archives that says Android File Host and scroll down till you find the CUL1 md5 file.
lewmur said:
You don't need to flash TWRP if you flash https://forum.xda-developers.com/t/...k-for-2019-galaxy-tab-a-10-1-sm-t510.4234889/ TWRP is built into this ROM. After installing stock CUL1, did you boot it, connect to wifi, skip the rest of setup and then enable Dev mode before rebooting to download and flashing from Odin?
edit: Don't attempt to download from the regular download link. Use the link under Build archives that says Android File Host and scroll down till you find the CUL1 md5 file.
Click to expand...
Click to collapse
AH! So donwloaded Nexus_Stock_CR_T510XXU5CUL1-20220219.tar and put into AP in Odin... and FAIL. Error: "Only official released binaries are allowed". Before i flashed with T510XXU5CUL1 didnt conect wifi and enabled usb debug.
EDIT: i dont have OEM unlock option in DEV but its unlocked, i checked when in downloaded mode it says "lock device and..." so its unlocked.
framC0 said:
AH! So donwloaded Nexus_Stock_CR_T510XXU5CUL1-20220219.tar and put into AP in Odin... and FAIL. Error: "Only official released binaries are allowed". Before i flashed with T510XXU5CUL1 didnt conect wifi and enabled usb debug.
Click to expand...
Click to collapse
You must connect wifi and enable Dev mode before flashing. If, after flashing CUL1, you went through the regular setup routine and put in a Google Account, you must also enable OEM in Dev options.
lewmur said:
You must connect wifi and enable Dev mode before flashing. If, after flashing CUL1, you went through the regular setup routine and put in a Google Account, you must also enable OEM in Dev options.
Click to expand...
Click to collapse
YES!!!!!! YOU ARE THE BEST!!!! Done! It booted directly to TWRP!!! THANK YOU!!!! So now will flash Magisk with twrp right? Alawys rooted my devices but this 510 wow...never saw a thing like this
Edit: The fight continues - So i did wipe and format data in TWRP and reboot system and im IN. Installed Magisk 23.0.apk and noticed that im still with "RAMDISK: no"... Searching how to do next to root! Im very near of the goal!!!! Finally! Big thanks to lewmur!
lewmur said:
I just finished flashing the latest Nexus ROM and rooted it with Magisk merely by flashing the Magisk zip file. You can flash the Nexus ROM without first flashing anything else but the latest CUL1 (not CUJ1) stock ROM. Nexus includes both TWRP and gapps. The only time you have to patch things to get Magisk installed is when you are trying to root a stock ROM instead of a custom ROM. Custom ROMs always to the patching for you.
Click to expand...
Click to collapse
I just finished flashing the latest Nexus ROM and rooted it with Magisk merely by flashing the Magisk zip file.
Click to expand...
Click to collapse
Sorry just one more question im very near. I will flash this Magisk (magisk_patched-24300_tkk90.img) in TWRP or Odin? And is this file from https://forum.xda-developers.com/t/...019-galaxy-tab-a-10-1-sm-t510.4234889/page-18 ?
My brain will explode few days in a row to get it rooted
EDIT: Since an older version dont know witch, Magisk Manager and Magisk are joined in apk so i just flashed Magisk 23.0.apk in TWRP...rooted!!! DONE!!!! FINALLY
framC0 said:
Sorry just one more question im very near. I will flash this Magisk (magisk_patched-24300_tkk90.img) in TWRP or Odin? And is this file from https://forum.xda-developers.com/t/...019-galaxy-tab-a-10-1-sm-t510.4234889/page-18 ?
My brain will explode few days in a row to get it rooted
Click to expand...
Click to collapse
Download latest Magisk from https://magiskapp.com/zip/ and flash with TWRP.
lewmur said:
Download latest Magisk from https://magiskapp.com/zip/ and flash with TWRP.
Click to expand...
Click to collapse
Thank you!! Im facing a problem when connect USB to PC...sometime tablet restarts and sometimes dont appear on PC even in device manager. Did you got this also? Not very important because i will access via FTP. Just to learn...thanks!
framC0 said:
Thank you!! Im facing a problem when connect USB to PC...sometime tablet restarts and sometimes dont appear on PC even in device manager. Did you got this also? Not very important because i will access via FTP. Just to learn...thanks!
Click to expand...
Click to collapse
USB cables are notorious for being flaky. Sometimes it helps to just turn the cable over and plug it back in. I always keep several on hand so that if I have connection problems I can try another cable.

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