I was just wondering since now we have a bootloader unlock with G900V , is it possble to downgrade back to Kitkat?
If you are on a bootloader higher than OD5, then I'm pretty sure the answer is still no.
I think someone asked this in another thread.
---------- Post added at 12:37 PM ---------- Previous post was at 12:32 PM ----------
The bootloader "unlock" isn't really a true unlock.
It modifies your current bootloader to a dev one.
Meaning..
OD5 Retail -> OD5 Dev
OE1 Retail -> OE1 Dev
PB1 Retail -> PB1 Dev
Maybe @GeTex could chime in and if I'm right, add it to the OP of her bootloader unlock thread so people know this from the start?
As far as I'm currently aware, it's possible to downgrade bootloaders, but it's a bit silly doing it
theres only two bootloaders, old and new, OG5- and OE1+
GeTex said:
As far as I'm currently aware, it's possible to downgrade bootloaders, but it's a bit silly doing it
theres only two bootloaders, old and new, OG5- and OE1+
Click to expand...
Click to collapse
how would i go about doing this?
@jrkruse would best answer that. I'm not able to really make lengthy posts from mobile.
I an't confirm bootloader downgrades work but i swear someone said they did it
If your on bod5 or lower then yes you can downgrade. You do realize you can run kitkat roms with lollipop bootloaders right?
If you want to downgrade flash stock recovery that matches your firmware. Power of device after you flash stock recovery. Choose the firmware you want to downgrade to. Make sure firmware includes bootloader, like a full factory tar image but you will loose root using full factory tar image. or you can flash a firmware only tar image if there is one available. After you flash either one again power off the device.
Just make sure after you use odin and flash an image make sure auto reboot is unchecked and power device off after you flash it
Yeah - just don't flash the bootloader... The whole point of an unlocked bootloader is bypassing the verification of an image being flashed, I'm pretty sure that would allow you to downgrade.
camcorder123 said:
Yeah - just don't flash the bootloader... The whole point of an unlocked bootloader is bypassing the verification of an image being flashed, I'm pretty sure that would allow you to downgrade.
Click to expand...
Click to collapse
could you provide the file that i would need to flash in Odin? or a link?
secandRRe said:
could you provide the file that i would need to flash in Odin? or a link?
Click to expand...
Click to collapse
Well I don't personally have a link to the file you want, but you should probably just look for a full tar.md5 of whatever version you're flashing to. Do a simple Google search.
Once you have it, decompress with 7zip (you can't edit a tar file, must be fully decompressed) and delete the "recovery.img" and "aboot.mbn" files. Then select the remaining files and compress them (using 7zip) into a .tar file, and flash away.
Might want to wait and see if @jrkruse inputs, as I'm not sure if you need to delete other partitions to be able to retain the unlocked bootloader. I did this to flash back to stock 5.0 and it worked fine.
Related
I've gotten no help at all with this. Very unlike this forum. My phone is a kltevew, which is straight talks version of a g900v. I need help, there are lots of great looking Roms that require you to have mm firmware I'd like to try!
Not sure why I'm getting g no responses on this. Surely someone must know something... The only response I got was not only not helpful but jerky and obnoxious. Doesn't anyone know how to upgrade the firmware on my phone? (And no, google has no answers for me on this.. I look everyday)
ddjr said:
Not sure why I'm getting g no responses on this. Surely someone must know something... The only response I got was not only not helpful but jerky and obnoxious. Doesn't anyone know how to upgrade the firmware on my phone? (And no, google has no answers for me on this.. I look everyday)
Click to expand...
Click to collapse
Download it with samfirm http://forum.xda-developers.com/galaxy-tab-s/general/tool-samfirm-samsung-firmware-t2988647 (Model= SM-G900V Region= VZW) or from sammobile http://www.sammobile.com/firmwares/database/SM-G900V/ , do you know how to flash firmware with odin?
I do. Thanks so much for responding. Every time I try with Odin, a few different releases, it always gives me the error message fail. Can it be done with flashfire?
What stands in the log of odin when the flash completes?
Ill have to do it again to see... Be back in a bit!
I think it says FAIL! modem but I'll have to run it again... Brb
Last night I used flash fire to install firmware. That didn't get past the red Verizon logo, so I put twrp on it with Odin. Twrp showed it as dpd1, but it just wouldn't boot. So I wiped it once and flashed a ROM that requires mm firmware. Same thing, justbootloop. So I put stock back on it, then mokee 6.0.1. which works, I'm just not on mm firmware and all the great new roms are still unavailable to me.
ddjr said:
Last night I used flash fire to install firmware. That didn't get past the red Verizon logo, so I put twrp on it with Odin. Twrp showed it as dpd1, but it just wouldn't boot. So I wiped it once and flashed a ROM that requires mm firmware. Same thing, justbootloop. So I put stock back on it, then mokee 6.0.1. which works, I'm just not on mm firmware and all the great new roms are still unavailable to me.
Click to expand...
Click to collapse
Have you enabled the option to flash bootloader on flashfire setting?
What? No, I haven't... but do do right now. Thanks for the tip! Actually, where would I find it?
So would I do it in this order? Flash the dpd1 bootloader, then modem, them rom, then jrkruse patch? All in flash fire?
ddjr said:
So would I do it in this order? Flash the dpd1 bootloader, then modem, them rom, then jrkruse patch? All in flash fire?
Click to expand...
Click to collapse
It's in setting of flashfire...but only do it if odin doesn't work because do it from flashfire is more riskiy...
1)do a backup
2)check the bootloader flash option
3)install the firmware with all the wipe except internal storage(it mean that flashfire delete /data excluding /data/media/0 (sdcard) but include it in your backup copy because you never know )
4)wait till reboot skip setup wizard "spamming" the next button then install the rom with flashfire or twrp
On the flashfire site i found this:
Flash bootloaders
"This setting controls if FlashFire will attempt to flash bootloader partitions. By default, bootloader partitions are only read and never written. Even when enabled, flashing bootloader partitions may not succeed - many devices have protections in place against the bootloaders being overwritten.
Please note that flashing bootloaders is extremely dangerous. Any bug, error, or failure may result in an unrecoverable hard-brick. Do not use this feature unless you know exactly what you are doing.
Due to the danger of this feature, it is automatically turned off every time FlashFire starts. You have to manually re-enable it every time you want to use it.
If you must flash bootloaders, it is advised to use a bootloader-based flashing tool such as fastboot or ODIN to do it, as these are the safest methods. OTAs may also update bootloaders, and though slightly less safe than fastboot/ODIN, it is still much safer than having FlashFire flash bootloader partitions directly."
So i suggest to try to flash the firmware directly from odin first
No dice... still doesn't boot up past the red Verizon logo
ddjr said:
No dice... still doesn't boot up past the red Verizon logo
Click to expand...
Click to collapse
did you install the firmware in the "AP" box on odin? (after you factory reset your phone)
I did. At this point guess I'm lucky I haven't bricked my phone. Ive tried every possible combination, nothing works!
ddjr said:
I did. At this point guess I'm lucky I haven't bricked my phone. Ive tried every possible combination, nothing works!
Click to expand...
Click to collapse
Redownload the firmware extract it again,factory reset your phone,and try to install the firmware,maybe it's a bad download
Should I be flashing a kernel too? Will it even start/boot without the right kernel?
find out if you phone is refurbished. to install stock ROM you would need the main board and boot to be the same model.
if it's not, then you just need to install bootloader/modem without full ROM. look around in xda for bootloader/modem.
I'll start off explaining my situation and then explain what myself and lots of other people seem to be confused about.
I was on Kikat last week and then upgraded to PB1 and unlocked my bootloader using method 1 by jkruse. Everything went fine and I was running stang5litre. I wanted to try Phoenix but I could not find instructions on how to get to PD1 first. I then saw that I could go right from PB1 to CM 13. I booted to recovery, wiped, installed CM and gApps, and everything went fine also.
I know my baseband is still PB1 but I'm guessing since I'm on CM now that I'm not actually on any official build right? (PD1, PF4, etc). So with that being said I don't understand how to go to other ROMs or back to LP.
I tried going back to recovery, wiping, and installing stang5litre again but my phone would not boot past the Samsung screen. Guessing something with the kernel? Soni flashed back to CM for now and I've been reading like crazy on here.
I'm trying to understand the process for switching between LP and MM. I found instructions by jkruse in the Phoenix forum (post #68) which talk about upgrading/downgrading bootloader but they are not clear and also they specifically say "Upgrade To PD1 Stock Rooted Rom With PD1 Unlocked Bootloader From 5.0 TW Rom". Well I'm not on a 5.0 TW ROM now.
I've seen countless posts in multiple forums showing a lot of other people are confused about this stuff. If I had all the details (clear instructions, file links, etc) I would glady make a very easy to follow guide and explanation of everything. I'm good at writing out stuff like that and making it very easy to understand.
Some things I want to understand so I can make a guide..
-How to go from PB1 to stock rooted PD1 (I see a guide to get to PF4 but Phoenix says you need PD1)
-How to go from CM to stock rooted PD1
-How to go from CM back to stock rooted PB1
-How to go from PD1/PF4 back to stock rooted PB1 (this process might be the same as the process coming from CM?
Any help/explanation would be greatly appreciated. Some of this info might be scattered across different forums but I think a guide specifically for switching between all the builds would be a huge help to a lot of people. Please link files also. I will definitely give credit to all who help if I do get the info needed to make it!! Thanks!
Bumppp
If you need help finding these things maybe you shouldn't be making a guide....
Sandman-007 said:
If you need help finding these things maybe you shouldn't be making a guide....
Click to expand...
Click to collapse
Please dont bother commenting pointless stuff. I read these forums every day and see lots of people looking for clarification for how to go back and forth between MM and LP. Mainly how to go back to LP. You will also find threads and posts with people giving different instructions. Some say just flash the PD1 rooted stock in recovery.. some say that won't downgrade the bootloader..
Some say to follow Jkruses guide in the second post of the bootloader unlock thread. The part about going back and forth between bootloader's.. which is a way more complicated method. There is different information all over
I highly suggest you read the 2nd portion "If You Already Have Bootloader Unlocked And On A Samsung TW Rom" link.
I think the key you need to understand is that you have to match the bootloader version with the corresponding ROM you are trying to flash. PB1 is for LP ROM. PD1/PF4 is for MM ROM.
Having above said, here's my answer to your question below:
-How to go from PB1 to stock rooted PD1 (I see a guide to get to PF4 but Phoenix says you need PD1)
Click to expand...
Click to collapse
Please follow the 2nd portion of the link above.
If you want to try Phoenix, then you can use the SafeStrap_PF4_Bootloader_Unlock_AIO.zip as jrkruse confirmed PF4 does work with it.
Upon complete the 2nd portion, then you can flash Phoenix's v12 ROM in TWRP directly.
-How to go from CM to stock rooted PD1
Click to expand...
Click to collapse
First of all, find out which CM you are at. I assume you are at CM13, then you would need follow the same 2nd portion instruction again (using the PD1 Bootloader), then flash the stock PD1 rom in twrp.
-How to go from CM back to stock rooted PB1
Click to expand...
Click to collapse
Same as above, except use PB1 bootloader in the process.
-How to go from PD1/PF4 back to stock rooted PB1 (this process might be the same as the process coming from CM?
Click to expand...
Click to collapse
You are right, it is the same process.
I hope I cleared it out for you. If you are not sure where you are at, then I would suggest you odin the original PB1 image, root it, unlock bootloader, flash twrp, then follow the 2nd portion of the link.
ruokuo said:
I highly suggest you read the 2nd portion "If You Already Have Bootloader Unlocked And On A Samsung TW Rom" link.
I think the key you need to understand is that you have to match the bootloader version with the corresponding ROM you are trying to flash. PB1 is for LP ROM. PD1/PF4 is for MM ROM.
Having above said, here's my answer to your question below:
-How to go from PB1 to stock rooted PD1 (I see a guide to get to PF4 but Phoenix says you need PD1)
Please follow the 2nd portion of the link above.
If you want to try Phoenix, then you can use the SafeStrap_PF4_Bootloader_Unlock_AIO.zip as jrkruse confirmed PF4 does work with it.
Upon complete the 2nd portion, then you can flash Phoenix's v12 ROM in TWRP directly.
-How to go from CM to stock rooted PD1
First of all, find out which CM you are at. I assume you are at CM13, then you would need follow the same 2nd portion instruction again (using the PD1 Bootloader), then flash the stock PD1 rom in twrp.
-How to go from CM back to stock rooted PB1
Same as above, except use PB1 bootloader in the process.
-How to go from PD1/PF4 back to stock rooted PB1 (this process might be the same as the process coming from CM?
You are right, it is the same process.
I hope I cleared it out for you. If you are not sure where you are at, then I would suggest you odin the original PB1 image, root it, unlock bootloader, flash twrp, then follow the 2nd portion of the link.
Click to expand...
Click to collapse
Thanks for the reply. I found instructions from Jkruse on page 7 in the Phoenix thread. That's why I am confused because there are so many methods scattered everywhere.
So here's what I tried and something went wrong already.
------------------------
Flashfire Method to Upgrade/Downgrade Your Bootloaders Dev Unlocked To Stock Roms
This Method Only Works If You Have A Dev Unlocked Bootloader Or Have Previously Unlocked Your Bootloader
I just want to add this warning. If you use this method you dont have the safety net that safestrap provides so if something goes wrong in this process you may end up with a unrooted phone and locked bootloaders causing you to have to start The whole rooting process over since you will not have safetrap to boot back into
Upgrade To PD1 Stock Rooted Rom With PD1 Unlocked Bootloader From 5.0 TW Rom With PB1 Unlocked Bootloaders
Download these 2 files and place on phone
PB1_Flashfire_Prepare.zip
PD1_Full_Firmware_With_Dev_Aboot_Twrp_Recovery_Ima ge.tar.zip
Reboot to TWRP and flash PB1_Flashfire_Prepare.zip
Reboot
Open Flashfire (It will be installed by the zip you flashed in TWRP) grant supersu permission
-------------------------
. I rebooted to TWRP. Flashed the PB1_Flashfire_Prepare.zip and rebooted right away. I now had safestrap installed which I did not before. So I go to open it up and my screen goes white for a second and then just returns to the app drawer?? It will not open
So then I delete the file and figured maybe it was a.bad download. Downloaded it again and tried to boot to recovery but it went to stock recovery not TWRP.
So I have no clue what to do now. How can I get TWRP installed again? All I did was flash that one zip so idk what went wrong. I am on PB1 everything.
aholeinthewor1d said:
Thanks for the reply. I found instructions from Jkruse on page 7 in the Phoenix thread. That's why I am confused because there are so many methods scattered everywhere.
So here's what I tried and something went wrong already.
------------------------
Flashfire Method to Upgrade/Downgrade Your Bootloaders Dev Unlocked To Stock Roms
This Method Only Works If You Have A Dev Unlocked Bootloader Or Have Previously Unlocked Your Bootloader
I just want to add this warning. If you use this method you dont have the safety net that safestrap provides so if something goes wrong in this process you may end up with a unrooted phone and locked bootloaders causing you to have to start The whole rooting process over since you will not have safetrap to boot back into
Upgrade To PD1 Stock Rooted Rom With PD1 Unlocked Bootloader From 5.0 TW Rom With PB1 Unlocked Bootloaders
Download these 2 files and place on phone
PB1_Flashfire_Prepare.zip
PD1_Full_Firmware_With_Dev_Aboot_Twrp_Recovery_Ima ge.tar.zip
Reboot to TWRP and flash PB1_Flashfire_Prepare.zip
Reboot
Open Flashfire (It will be installed by the zip you flashed in TWRP) grant supersu permission
-------------------------
. I rebooted to TWRP. Flashed the PB1_Flashfire_Prepare.zip and rebooted right away. I now had safestrap installed which I did not before. So I go to open it up and my screen goes white for a second and then just returns to the app drawer?? It will not open
So then I delete the file and figured maybe it was a.bad download. Downloaded it again and tried to boot to recovery but it went to stock recovery not TWRP.
So I have no clue what to do now. How can I get TWRP installed again? All I did was flash that one zip so idk what went wrong. I am on PB1 everything.
Click to expand...
Click to collapse
The SS/FF method was old instruction. People sometimes has hit or miss. I think Jkruse found out the cause (my guess is the binary status). Please go for the latest one, which is at the OP of the link I gave you.
If you still have the unlocked bootloader, you can always odin the twrp image (I recommend v3.0.0.0).
If you happened lost the unlocked bootloader status, then I would recommend you to odin the original PB1 tar, root, unlock bootloader, odin twrp, then follow the 2nd part of the OP.
I hope this helps.
I have a g900v with android 6.0.1 I downloaded OTA. I know nothing about this topic, I was an apple user for 4 years then switched to this. I've tried to downgraDE using firmware from sammobile, don't know if that's what I am supposed to do... but nothing ever works, it either gets stuck on verizon screen or Odin says fail and I have to flash 6.0.1. Can anyone help? And remember I'm a noob so if you do help, please post links and stuff.
I have the same question.
I've looked all over XDA and other places and it seems that we have to use safestrap, but that requires root, and root requires an unlocked bootloader, but to unlock your bootloader requires root. I'm finding a circular reference that makes it impossible to do anything!
My CID starts with 15, im on Android 6.0.1 Marshmallow (received OTA), not rooted, bootloader locked, on verizon. Is it possible to root this phone?
Did you guys see the stickies at the top? It's all (all of it) spelled out for you there. Read the guides
Guys, there are 2 guides you HAVE to read. Only the OP should do it.
In general, odin back to official PB1, then root the PB1 .
http://forum.xda-developers.com/verizon-galaxy-s5/general/root-method-og5-ok3-t3290370
Then unlock bootloader and flash to a MM rom.
http://forum.xda-developers.com/ver...t/rd-unlocking-galaxys-s5-bootloader-t3337909
ruokuo said:
Guys, there are 2 guides you HAVE to read. Only the OP should do it.
In general, odin back to official PB1, then root the PB1 .
http://forum.xda-developers.com/verizon-galaxy-s5/general/root-method-og5-ok3-t3290370
Then unlock bootloader and flash to a MM rom.
http://forum.xda-developers.com/ver...t/rd-unlocking-galaxys-s5-bootloader-t3337909
Click to expand...
Click to collapse
I have tried to do all of this, but I don't have an unlocked bootloader and every time I flash pb1 it's a soft brick. Any help with this would be appreciated!
nsol1 said:
I have tried to do all of this, but I don't have an unlocked bootloader and every time I flash pb1 it's a soft brick. Any help with this would be appreciated!
Click to expand...
Click to collapse
Right after flashing pb1, reboot into recovery and do a factory reset.
You mean it will softbrick when you flash pb1 tar file in Odin?
ruokuo said:
You mean it will softbrick when you flash pb1 tar file in Odin?
Click to expand...
Click to collapse
Yes, I flash it, the oNE from sammObie which has pb1 and is for g900v and I soft brick no matter what I do, so I flash back to 6.0.1
nsol1 said:
Yes, I flash it, the oNE from sammObie which has pb1 and is for g900v and I soft brick no matter what I do, so I flash back to 6.0.1
Click to expand...
Click to collapse
Lightn1ng said:
Right after flashing pb1, reboot into recovery and do a factory reset.
Click to expand...
Click to collapse
nsol1, read what Lightn1ng has stated and you should be fine. If not, try downloading PB1 from the link here:
https://www.androidfilehost.com/?fid=24438995911970571
When you download it verify the md5 to make sure the file isn't corrupt in any way.
Also make sure you are following the guides EXACTLY as instructed from the link provided earlier in this thread. You must follow the two links in order, the top being the first that allows you to root, and the second link being last that unlocks your bootloader. This is not an easy process going from Marshmallow back to Lollipop, then unlocking bootloader to flash rooted Marshmallow, but take small steps at a time, pay attention to details and instructions and you should be able to do this with no problems. I am actually going to do this later today with a family member's S5. In about 24 hours I will update if I am unable to complete the steps provided. If I am able to get it working, then I will make sure to tell you what steps I took, if it was any different than what I stated in this post.
Research is always a good thing to do before taking the jump. I have already downloaded the necessary files onto my laptop before I proceed, including the files to flash in the event I make a mistake. That way I don't spend half a day downloading everything while the phone is unusable. And I have read through the majority of the comments to see what problems others have had issues with so I know what fixes there are.
Hi XDA community, i want try to downgrade in my A310f from Android 6.0.1 to 5.1.1. It's possible? I try to download the 5.1.1 from Sammobile, but when i flash the firmware with odin i get the error "SW Rev Check Fail" in my phone and "md5 error" from odin.. there are some method?
MMBB29K.A310FXXU3BQC2 is my model. Tell me please here
allenbtc said:
MMBB29K.A310FXXU3BQC2 is my model. Tell me please here
Click to expand...
Click to collapse
If your bootloader also is upgraded to A310FXXU3 then it won't be possible to downgrade to 5.1.1 through odin.
Maybe with a modified package without cm.bin, modem.bin, sboot.bin. Otherwise, make it flashable and use twrp.
With Odin you'll only be able to downgrade to the latest 6.0.1 which is also A310FXXU3.
how i can flash with twrp?
---------- Post added at 02:02 PM ---------- Previous post was at 01:57 PM ----------
tys0n said:
If your bootloader also is upgraded to A310FXXU3 then it won't be possible to downgrade to 5.1.1 through odin.
Maybe with a modified package without cm.bin, modem.bin, sboot.bin. Otherwise, make it flashable and use twrp.
With Odin you'll only be able to downgrade to the latest 6.0.1 which is also A310FXXU3.
Click to expand...
Click to collapse
how i can flash with twrp?
tys0n said:
If your bootloader also is upgraded to A310FXXU3 then it won't be possible to downgrade to 5.1.1 through odin.
Maybe with a modified package without cm.bin, modem.bin, sboot.bin. Otherwise, make it flashable and use twrp.
With Odin you'll only be able to downgrade to the latest 6.0.1 which is also A310FXXU3.
Click to expand...
Click to collapse
I can confirm this method is working, I have successfully downgraded an A3 2016 from A310FXXU3BQD2 to A310FXXU2BQA3.
I used the Tar tool from this thread with all the files from the update I wanted to downgrade to, except sboot.bin, cm.bin and modem.bin. It's very important to NOT copy those files to the tool folder because otherwise your phone will be laggy and SIM unusable (if you use the old modem) or you will not be able to flash like with the original tar (if you use old sboot or cm).
So after I ran the batch file, I did a wipe data/factory reset using original recovery and then I flashed the "all files" tar the tool created using Odin in AP (only Auto Reboot and F. reset time checked) and the phone in download mode, and It worked like a charm.
With this method you can likely have any old update flashed while keeping the latest secure bootloader, cm and modem. (Notice that after the downgrade, the phone cannot find any new updates, maybe it's related to the bootloader being the latest or the fact I only downgraded to the previous update...)
dealth645 said:
I can confirm this method is working, I have successfully downgraded an A3 2016 from A310FXXU3BQD2 to A310FXXU2BQA3.
I used the Tar tool from this thread with all the files from the update I wanted to downgrade to, except sboot.bin, cm.bin and modem.bin. It's very important to NOT copy those files to the tool folder because otherwise your phone will be laggy and SIM unusable (if you use the old modem) or you will not be able to flash like with the original tar (if you use old sboot or cm).
So after I ran the batch file, I did a wipe data/factory reset using original recovery and then I flashed the "all files" tar the tool created using Odin in AP (only Auto Reboot and F. reset time checked) and the phone in download mode, and It worked like a charm.
With this method you can likely have any old update flashed while keeping the latest secure bootloader, cm and modem. (Notice that after the downgrade, the phone cannot find any new updates, maybe it's related to the bootloader being the latest or the fact I only downgraded to the previous update...)
Click to expand...
Click to collapse
Thanks for confirming. I've never tried it myself but I figured those bins are the U1/U2/U3 binary files that are protected for downgrade, so it should probably work without them
Now we know how to easily downgrade without errors.
Downgrade
Hello,
With my sm-a310f I downgraded from Nougat to Marchmallow but could not get back to Lollipop.
I used TWRP and Odin.
I saw that there were solutions but they are not universal. Can someone point me?
Thank you
menuisier3 said:
Hello,
With my sm-a310f I downgraded from Nougat to Marchmallow but could not get back to Lollipop.
I used TWRP and Odin.
I saw that there were solutions but they are not universal. Can someone point me?
Thank you
Click to expand...
Click to collapse
https://forum.xda-developers.com/samsung-a-series/general/rom-t3614602
flash combination rom before flash full 4 file stock rom 5.1 , u can downgrade your phone.
Tanle11 said:
flash combination rom before flash full 4 file stock rom 5.1 , u can downgrade your phone.
Click to expand...
Click to collapse
No! You can't downgrade bootloader even if you use a 4 file repair firmware.
As far as I am aware of, this is the only possible way to downgrade to 5.1.1 if you are on new bootloader/modem (tested by me - works fine, I am on the newer bootloader/modem combo) :
https://forum.xda-developers.com/samsung-a-series/general/rom-t3614602
(consider this however ONLY if you are willing to trade 5.1.1 for the warranty as you would need to flash TWRP in the process first)
Hello all, I have a Total Wireless aka Verizon TracFone branded S5, so it's model s902l but it's g900v hardware with unlocked bootloader. Of course they never released any updates so I'm wondering if some will share a twrp backup of the newest, or if you believe another is better, their modem and bootloader for me I'd like to try it, worse case I restore my backup if it doesn't take.
Thanks
binthe920 said:
Hello all, I have a Total Wireless aka Verizon TracFone branded S5, so it's model s902l but it's g900v hardware with unlocked bootloader. Of course they never released any updates so I'm wondering if some will share a twrp backup of the newest, or if you believe another is better, their modem and bootloader for me I'd like to try it, worse case I restore my backup if it doesn't take. Thanks
Click to expand...
Click to collapse
The Modems are located on the following thread.
[BASEBAND-FIRMWARE-MODEMS]Verizon Samsung Galaxy S5 {SM-G900V/KLTEVZW}[ODIN] by Ibuprophen
As far as the Bootloader... you will need to be careful when it comes to that because you can permanently lock it up and, possibly, brick it too.
I'm not sure where any of the separate Stock Bootloader files are on the forum since those who, typically, need it installed back on the device normally just flashes the Stock Firmware via Odin.
I've got a feeling that you might possibly be referring to the Stock Recovery and not the Bootloader.
~~~~~~~~~~~~~~~
I DO NOT PROVIDE SUPPORT VIA PM UNLESS ASKED/REQUESTED BY MYSELF.
PLEASE KEEP IT IN THE THREADS WHERE EVERYONE CAN SHARE
Thank you but those are for flashing with Odin, I'm looking for a TWRP backup.
binthe920 said:
Thank you but those are for flashing with Odin, I'm looking for a TWRP backup.
Click to expand...
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There's a handful of TWRP flashable ones in the OP of that thread.
The only reason that the thread title states "Odin" is because most of them are Odin flashable ones.
I'm one of the threads Developers and u planned on creating the additional Recovery flashable ones soon but, am just delayed a bit.
The Odin flashable ones are actually the preferred method for most members anyway because of the additional safety checks by Odin.
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I DO NOT PROVIDE SUPPORT VIA PM UNLESS ASKED/REQUESTED BY MYSELF.
PLEASE KEEP IT IN THE THREADS WHERE EVERYONE CAN SHARE
I'll look again but read on one of the posts that they weren't TWRP flashable? I don't have a computer to use Odin right now and last time I tried those very safety checks you mention prevented me from flashing 900v files to my 902l branded phone. Ended up with a read only modem for a bit for trying. Of course the only factory firmware available anywhere is older than what came on mine and what sounds like everyone else's branded phone so have to be careful. That's why I was hoping for a backup to try rather than flashing something, maybe I don't fully understand the process but thought it'd be a safer route?
Am I supposed to use one of the SS/FF zips?
Last time I was attempting to upgrade my bootloader and modem I was following a thread that was supposed to both upgrade those and unlock the bootloader of actual 900v phones. According to that thread SS/FF zips aren't compatible with TWRP because they work differently?
Well I tried the newest available zip, it took about 15 minutes to flash and said successful but baseband still s902ludu3aog2 so that didn't work... Still hoping to get ahold of a backup I can just restore it at least try, unless someone has another suggestion on how to get newer 900v modem and possibly bootloader on my 902l model 900v hardware?
So nobody is willing to share a backup of their modem and bootloader?!?!
binthe920 said:
unless someone has another suggestion on how to get newer 900v modem and possibly bootloader on my 902l model 900v hardware?
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I think, flashing a bootloader from another S5 variant is a bad idea, most likely you'll brick the phone. Prepare an unbrick microsd at least to be ready, but nothing is guaranteed.
I don't think you'll manage to flash modem and bootloader from TWRP because TWRP means Samsung's binary state: custom and these partitions are protected in custom state.
I think, your best bet is to revert to factory recovery, get Samsung binary: official, root the phone and use SS or FF.
Not possible, factory firmware doesn't seem to exist, only 1 does and it's older than what it came with from the factory. Also it's Verizon hardware, same FCC id, but different model and comes with unlocked bootloader. I don't want to flash anything, I just want to restore a backup.
I appreciate your advice but I already been thru all of this...
Flashing is simply not going to work unless there's a way to change my device model maybe?
All I really want is somebody with a modem and bootloader newer than KitKat to please back them up in TW RP and share them please.
bbsc said:
I think, flashing a bootloader from another S5 variant is a bad idea, most likely you'll brick the phone. Prepare an unbrick microsd at least to be ready, but nothing is guaranteed.
I don't think you'll manage to flash modem and bootloader from TWRP because TWRP means Samsung's binary state: custom and these partitions are protected in custom state.
I think, your best bet is to revert to factory recovery, get Samsung binary: official, root the phone and use SS or FF.
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If the hardware is physically identical I don't understand why running a bootloader meant to run on this exact Hardware would cause a problem?
But I'm primarily interested in an updated modem. Neither will Flash since there are no updated modems for this MNVO branded Verizon phone.
binthe920 said:
All I really want is somebody with a modem and bootloader newer than KitKat to please back them up in TW RP and share them please.
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Here you are:
https://mega.nz/#!6t9BVRJQ!ECh2-9kIqqix_238BBxvKn2up00_4qmhb9-34d-8jlQ
SM-G900V, DQI2, TWRP 3.2.1-0, boot (kernel) and modem backup.
TWRP cannot backup bootloader, but I can try dd if you need.
Good luck.