[SM-T835] Downgrade Debloated Android 10 -> Stock Android 8.1 - Galaxy Tab 4 Q&A, Help & Troubleshooting

Is it possible?
Preface:
TWRP is installed, device unlocked/rooted and original FW was replaced by community Android 10 Weta kernel.
Now i'd like to downgrade to latest stock 8.1 version.
Odin throws scary errors like these ones:
0/004 Fail! Auth and sw rev check fail fused 4 > binary 2
Flashing correct fw: region and version of device match.
It looks like i should install right boot-loader, but how can i do this?
So, i'd like to know is the any working method to lower boot-loader version?
Any thoughts? You, Android gurus!!

You are in the wrong device forum. Move to Galaxy Tab S4, this is for the Galaxy Tab 4, which is a completely different device.

Oh, sorry for that. I beg your pardon.
How can i move the topic?

spacedrone808 said:
Oh, sorry for that. I beg your pardon.
How can i move the topic?
Click to expand...
Click to collapse
Probably you have to ask to an administrator, or re-type in the correct device forum the thread

Related

[Q] I want to install stock rom

Hello. As i say in the title i want to install stock rom for my s4 (for kies upgrade) but i dont want ODIN way you know its very dangereous and my SIM may not work.
Is someone have CWM backup Or flashable ZIP file?
Oh i forgot to say my device is jftlexx INT
What ARE you talking about??? How do you think samsung does it? ? With Odin buddy! Good luck to ya
theDman68 said:
What ARE you talking about??? How do you think samsung does it? ? With Odin buddy! Good luck to ya
Click to expand...
Click to collapse
hey dude if i do a flashing faliure will kies fix it?
What FW is on your phone right now? and what are you trying to upgrade to?
Questions belong in Q&A, not General.
Thank you.
Now that this is in the correct place...
Stock ROMs do not come in a flashable zip format. Kies is not going to help you in this regard, and is absolutely useless for fixing flashing problems that may crop up. Thus, you'll have to use Odin, like it or not.
I'm assuming you want to upgrade your ROM, so please post the following information:
1. Model Number
2. Android Version, found by going to Settings > More > About device.
3. Firmware Version (AP, CP, CSC), found by dialing *#1234# in the dialer or by installing Phone Info from the Play Store and running it.
4. Service Provider
5. Country
6. Is the phone rooted? (Yes/No)
7. Is a custom ROM installed? (Yes/No, and the name of the ROM)
Some of this may seem redundant, but putting it all in one post makes it easier to help you.

Need Guidance...

Hey guys,
I'm going to install a custom ROM today to see if that maybe fixes my SensorHub not working. I just need guidance on the correct procedure. I have a SM-N900 model (N900XXUEBOL2) running Lollipop 5.0. Do I first need to root, or can I install a custom ROM straight from the stock recovery? It seems like there aren't may ROMS available for the SM-900 model, but I've found one that seems to have good battery life and performance: TR-ROM. This is the procedure I will follow:
1) Root phone with CF-Auto-Root-ha3g-ha3gxx-smn900.zip
2) Use ODIN to flash n900-cwm-recovery-6.0.5.0-kk_L5.0(0812).tar
3) Flash TR-ROM from CWM: TR-ROM XDA
Is this all correct? I just want to make sure that I don't brick my phone!
Also, how can I revert back to stock if I need to?
Thanks so much!!!
Guit4eva said:
Hey guys,
procedure. I have a SM-N900 model (N900XXUEBOL2) running Lollipop 5.0. can I install a custom ROM straight from the stock recovery?
NO
Click to expand...
Click to collapse
OK. ..so are the 3 steps I mentioned above correct?
http://forum.xda-developers.com/galaxy-note-3/general/guide-root-note-3-sm-n900-5-0-install-t3069670
I'm trying to follow that guide, but the build number of N900 on the CF-Root site says:
LRX21V.N900XXUEBOA6
Whereas mine is:
N900XXUEBOL2
Will is still work? Also, it says a locked bootloader will probably brick your device. How do I check if mine is locked?
I've rooted and installed custom roms on many devices before - I'm not sure why rooting and installing custom rom on the Note 3 is so daunting...
Google?
Sent from my Note 3 running Purify CM13
Dejan Sathanas said:
Google?
Sent from my Note 3 running Purify CM13
Click to expand...
Click to collapse
I wouldn't be asking here if I hadn't already Google'd extensively.
But of course... The phone is brand new, so there's no info yet available. I understand...
Yes, do as you wrote in the first post. Should be ok, as those are the latest files.
Sent from my Note 3 running Purify CM13
I'm finding that there is actually TOO much information (too many variables). That's why I'm asking specifically about my version, as I can't seem to get my head around it - and rather than brick my phone, I'm merely seeking a bit of guidance from someone more experienced than me. In the past, when I was rooting previous phones, I received a lot of useful information and help from XDA - but it seems like now all I'm getting are sarcastic remarks and general unfriendliness. Why is that?
You have N900 its an exynos model not the qualcom .Not something that has a big following on here .
The links in your post point to zips , whats the point of me downloading a zip ??
CF autoroot you need to read the instructions regarding builds .
Locked boot loader no idea for that model .
CWM yes flash via Odin if its the correct one for your model .
Flash rom yes the rom will give you the method .

Fused 6 Binary 4 935U... Need unbranded Firmware

Hi
I have been trying to flash the 8.0 935U Firmware to the 935P but I keep getting Fused 6 Binary 4.
I can see now from reading threads that's its not possible to flash this Firmware.
So my question is, is there any unbranded firmware I can flash to this phone in this state. Even 7.0 or custom.
Thanks
gersrt said:
Hi
I have been trying to flash the 8.0 935U Firmware to the 935P but I keep getting Fused 6 Binary 4.
I can see now from reading threads that's its not possible to flash this Firmware.
So my question is, is there any unbranded firmware I can flash to this phone in this state. Even 7.0 or custom.
Thanks
Click to expand...
Click to collapse
You updated the stock Sprint firmware to a newer version. It won't work.
I haven't tried this, but it was posted in the S7 flat forum.
https://forum.xda-developers.com/sp...0p-bypassing-bootloader-t3777381/post77139693
There is a YouTube video and a link to a written directions. The files are hosted on Android file host, so it seems legit. I think @jrkruse did something similar, but I couldn't find the thread to check.

Is G935VVRSBCTA1 rootable

I have a s7 edge with G935VVRSBCTA1 Baseband version. I have tried all of the guides I could find and when I have tried to flash the ENG_BOOT file it fails every time no matter which version I have tried. It is a Snapdragon phone. Is it possible to flash a different firmware? If so which should I use? I appreciate any help. Thanks
also when it fails it says this on the phone: sw rev check fail boot fused 11 binary 8
im having the exact same issues bro...ive tried searching everwhere i could think ton look. i wound up bricking my phone and had to use the verizon upgrade assistance to repair it. im starting to think the bootloader and firmware we are on can not be downgraded nor rooted
brick00444 said:
I have a s7 edge with G935VVRSBCTA1 Baseband version. I have tried all of the guides I could find and when I have tried to flash the ENG_BOOT file it fails every time no matter which version I have tried. It is a Snapdragon phone. Is it possible to flash a different firmware? If so which should I use? I appreciate any help. Thanks
also when it fails it says this on the phone: sw rev check fail boot fused 11 binary 8
Click to expand...
Click to collapse
undratk45 said:
im having the exact same issues bro...ive tried searching everwhere i could think ton look. i wound up bricking my phone and had to use the verizon upgrade assistance to repair it. im starting to think the bootloader and firmware we are on can not be downgraded nor rooted
Click to expand...
Click to collapse
Thanks for replying, the more I read I agree with you. Thanks again.
G935VVRSBCTA1
Bootloader rev. B/11 can not be rooted yet.
You guys updated too quickly. And, no, you can not downgrade either. You will have to either wait for the ENG BOOT file for rev. B/11 or do without root.
SkylineDriver said:
G935VVRSBCTA1
Bootloader rev. B/11 can not be rooted yet.
You guys updated too quickly. And, no, you can not downgrade either. You will have to either wait for the ENG BOOT file for rev. B/11 or do without root.
Click to expand...
Click to collapse
Thank you.
There is hope in the future it could be? Perhaps I'll buy a new phone
Hi, is there any update on rooting the build R16NW.G935VVRSBCTC1 ?

Can't find XAA or ATT binary 7 firmware. Please help

I have an AT&T Galaxy G950u with my most recent firmware being g950usqs7dtb1. I flashed a combination file (g950usqu7ask1) to turn on OEM unlock so I could install Havoc (I know now, I didn't have to do all that,) but now I can't get Odin to flash any stock ROMs back to install TWRP. The main error I'm receiving in Odin is FAIL! (Auth).
I've tried all kinds of ROMs but I can't find my original ROM anywhere except some shady site that definitely isn't legit.
When I boot into Download/Odin mode the numbers next to RP SWREV are B7(2.1.1.1.1) k6 S7
The error on my phone is SW Rev Check fail: (ab)) Fused 7 > Binary 1
I realized I probably need a carrier free (XAA) or ATT firmware that is binary 7. The problem is it's so recent I can't find any binary 7 firmwares out there. I've searched Updato and couldn't find xaa firmware for binary 7
Working with patched/modded Odin 3B v3.14.1
If anyone can help I would be so grateful.
Edit: I've tried Frija and it says ATT not supported, and it says it can't find anything for XAA. I've also searched Updato thoroughly and can't find a binary 7 file.
Edit 2: I found a ROM.
uberdad said:
I have an AT&T Galaxy G950u with my most recent firmware being g950usqs7dtb1. I flashed a combination file (g950usqu7ask1) to turn on OEM unlock so I could install Havoc (I know now, I didn't have to do all that,) but now I can't get Odin to flash any stock ROMs back to install TWRP. The main error I'm receiving in Odin is FAIL! (Auth).
I've tried all kinds of ROMs but I can't find my original ROM anywhere except some shady site that definitely isn't legit.
When I boot into Download/Odin mode the numbers next to RP SWREV are B7(2.1.1.1.1) k6 S7
The error on my phone is SW Rev Check fail: (ab)) Fused 7 > Binary 1
I realized I probably need a carrier free (XAA) or ATT firmware that is binary 7. The problem is it's so recent I can't find any binary 7 firmwares out there. I've searched Updato and couldn't find xaa firmware for binary 7
Working with patched/modded Odin 3B v3.14.1
If anyone can help I would be so grateful.
Edit: I've tried Frija and it says ATT not supported, and it says it can't find anything for XAA. I've also searched Updato thoroughly and can't find a binary 7 file.
Edit 2: I found a ROM.
Click to expand...
Click to collapse
Well first off you can't flash any custom ROMs on this device it has a locked bootloader. Oem unlock doesn't matter. It's useless. Garbage. That's all for that. Flash any other carrier firmware and flash the oyn csc not home. It will repersonalize for att as the firmware are actually multi carrier. Att included.
TheMadScientist said:
Well first off you can't flash any custom ROMs on this device it has a locked bootloader. Oem unlock doesn't matter. It's useless. Garbage. That's all for that. Flash any other carrier firmware and flash the oyn csc not home. It will repersonalize for att as the firmware are actually multi carrier. Att included.
Click to expand...
Click to collapse
Thanks for the input. I'm trying to flash twrp as a custom recovery but it gets stuck on "waiting for device". I've updated all drivers and have no error in device manager
uberdad said:
Thanks for the input. I'm trying to flash twrp as a custom recovery but it gets stuck on "waiting for device". I've updated all drivers and have no error in device manager
Click to expand...
Click to collapse
You can't flash twrp. Locked bootloader
TheMadScientist said:
You can't flash twrp. Locked bootloader
Click to expand...
Click to collapse
(BUMP)
Hey there @TheMadScientist not following you! haha. Just came across this thread as im researching what elliwigy and jrkruse have done.
To @uberdad search for anything s8 SM-G950 by jrkruse and elliwigy here and you should have a solution if your device is still on 7. Wont be twrp but will be safestrap twrp. You can install a custom rom then.
noidodroid said:
(BUMP)
Hey there @TheMadScientist not following you! haha. Just came across this thread as im researching what elliwigy and jrkruse have done.
To @uberdad search for anything s8 SM-G950 by jrkruse and elliwigy here and you should have a solution if your device is still on 7. Wont be twrp but will be safestrap twrp. You can install a custom rom then.
Click to expand...
Click to collapse
There are no custom roms. You can only have root on a 7.0 stock system img. Please research more before beginning to pass on information. As well this thread is now old no need to dig up old stuff. I helped out with some of the stuff on this device I know what it can and cannot do. Here wanted to install a los based rom. which is a big no. Add I said to begin with
---------- Post added at 03:57 AM ---------- Previous post was at 03:50 AM ----------
Then he was trying to flash twrp. Which is a big no. Please don't go dragging up a bunch of old threads we have dealt with. This leads to confusing people
TheMadScientist said:
There are no custom roms. You can only have root on a 7.0 stock system img. Please research more before beginning to pass on information. As well this thread is now old no need to dig up old stuff. I helped out with some of the stuff on this device I know what it can and cannot do. Here wanted to install a los based rom. which is a big no. Add I said to begin with
---------- Post added at 03:57 AM ---------- Previous post was at 03:50 AM ----------
Then he was trying to flash twrp. Which is a big no. Please don't go dragging up a bunch of old threads we have dealt with. This leads to confusing people
Click to expand...
Click to collapse
Hi. Yes you are right I should have said Slightly Cooked Rom or Modified System Image. However preferred to put Custom Rom due to the fact the amount of new Customization Enthusiasts here on XDA to make it simpler. Also sure yes USER Root on XDA only obtained on 7.0 (at least public). Little off topic but our team has a *working* root along with our own SuperUser which means for repairs pretty much but if time was put into it could become possibly a semi to full user root. I have used Magisk SU older versions along with our root and had a semi working user root on past Galaxies.. Anyhow we don't really have time, especially myself, to work on an actual user root for every device i/we work on.
In the world of forums threads never really grow old they just go into a deep sleep eventually....Until someone wakes it up with the thirst for knowledge. It's how the internet works when it comes to these here BBS/Forums/Blogs etc. =]
What he asked could be something someone else might ask or attempt trying (he shouldnt have even got as far as he did unless on international variant which makes the Q odd.. haha eh? however i felt the need to straighten it up for anyone who might read and get confused. See what im saying..? along with the previous statement about data no become stale.
The more ya know the smarter you become. Information makes the world go around. .. IMO Always best to keep it flowing constantly added to.
2 cents
noidodroid said:
Hi. Yes you are right I should have said Slightly Cooked Rom or Modified System Image. However preferred to put Custom Rom due to the fact the amount of new Customization Enthusiasts here on XDA to make it simpler. Also sure yes USER Root on XDA only obtained on 7.0 (at least public). Little off topic but our team has a *working* root along with our own SuperUser which means for repairs pretty much but if time was put into it could become possibly a semi to full user root. I have used Magisk SU older versions along with our root and had a semi working user root on past Galaxies.. Anyhow we don't really have time, especially myself, to work on an actual user root for every device i/we work on.
In the world of forums threads never really grow old they just go into a deep sleep eventually....Until someone wakes it up with the thirst for knowledge. It's how the internet works when it comes to these here BBS/Forums/Blogs etc. =]
What he asked could be something someone else might ask or attempt trying (he shouldnt have even got as far as he did unless on international variant which makes the Q odd.. haha eh? however i felt the need to straighten it up for anyone who might read and get confused. See what im saying..? along with the previous statement about data no become stale.
The more ya know the smarter you become. Information makes the world go around. .. IMO Always best to keep it flowing constantly added to.
2 cents
Click to expand...
Click to collapse
All true. Well said

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