Database Users

Help downgrading bootloader N910C

Hi,
Recently my galaxy note was in repair at samsung. After I took it with everything wiped out and android 5.1.1, I rooted and installed twrp. I was able to install an aosp rom via recovery (the unofficial cm-13).
Now I cant flash anything via Odin without getting "sw rev check fail fused 2 binary 1" and every stock rom I flash via twrp give me bootloop.

ticiano_arraes said:
Hi,
Recently my galaxy note was in repair at samsung. After I took it with everything wiped out and android 5.1.1, I rooted and installed twrp. I was able to install an aosp rom via recovery (the unofficial cm-13).
Now I cant flash anything via Odin without getting "sw rev check fail fused 2 binary 1" and every stock rom I flash via twrp give me bootloop.
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Click to collapse
how did you solve yhis i have the same problem

ahmd gomaa said:
how did you solve yhis i have the same problem
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Click to collapse
It's not possible.

ticiano_arraes said:
Hi,
Recently my galaxy note was in repair at samsung. After I took it with everything wiped out and android 5.1.1, I rooted and installed twrp. I was able to install an aosp rom via recovery (the unofficial cm-13).
Now I cant flash anything via Odin without getting "sw rev check fail fused 2 binary 1" and every stock rom I flash via twrp give me bootloop.
Click to expand...
Click to collapse
Just flash it again but use different usb ports. It is the usb ports problems.

ticiano_arraes said:
Hi,
Recently my galaxy note was in repair at samsung. After I took it with everything wiped out and android 5.1.1, I rooted and installed twrp. I was able to install an aosp rom via recovery (the unofficial cm-13).
Now I cant flash anything via Odin without getting "sw rev check fail fused 2 binary 1" and every stock rom I flash via twrp give me bootloop.
Click to expand...
Click to collapse
And when it bootloops boot into stock recovery and do a factory reset. That will clear all the crap out from CM-13.

s7 edge stuck in bootloop after unroot

Hello
I have unrooted my s7 edge using supersu and now it bootloop in the s7 edge screen , i have twrp and download mode access.
I have searched arround for someone having the same problem as me but no luck.

you have to reflash SuperSU to get the phone up running in odin. if u want to go back to stock u have to flash the original firmware in odin.

An error has occured while updating the device software

Hi.
I am currently stuck at a blue screen that says "an error has occured while updating the device software." I rooted which went fine, but when I went to add TWRP I was unable to access recovery. Each time I would try to access recovery it would say something like "system software not authorized by ATT has been found on your phone." So I decided to revert back to stock using Odin and the firmware from Sammobile, that however failed and now I'm stuck on the "an error has occured while updating the device software."
- I can get into download mode
- I can NOT get into recovery and havent been able to since I rooted
- I had just upgraded to 7.0 ota right before I rooted
- I've tried flashing with Kies however it just keeps asking me to enter a model number
- I've tried flashing with Smart Switch but after I enter the model number and serial number the app closes and nothing happens
- Odin fails everytime, have also tried patched Odin which I used to root and fails as well
Edit: Could it be that I need to flash 7.0 firmware instead of 6.0.1? I read something about the bootloader not allowing downgrades?
Please help?

shane1088 said:
Hi.
I am currently stuck at a blue screen that says "an error has occured while updating the device software." I rooted which went fine, but when I went to add TWRP I was unable to access recovery. Each time I would try to access recovery it would say something like "system software not authorized by ATT has been found on your phone." So I decided to revert back to stock using Odin and the firmware from Sammobile, that however failed and now I'm stuck on the "an error has occured while updating the device software."
- I can get into download mode
- I can NOT get into recovery and havent been able to since I rooted
- I had just upgraded to 7.0 ota right before I rooted
- I've tried flashing with Kies however it just keeps asking me to enter a model number
- I've tried flashing with Smart Switch but after I enter the model number and serial number the app closes and nothing happens
- Odin fails everytime, have also tried patched Odin which I used to root and fails as well
Edit: Could it be that I need to flash 7.0 firmware instead of 6.0.1? I read something about the bootloader not allowing downgrades?
Please help?
Click to expand...
Click to collapse
Why would you try installing TWRP on a AT&T S7 Edge which the bootloader is locked, that's one reason you can't go to recovery, basically you bricked your AT&T S7 Edge, try to odin Stock AT&T S7 Edge Nougat see if that gives you recovery back, and do not try installing TWRP again, if your able to Odin back to stock, good luck!
Running On Samsung Galaxy S7 Edge G935A Wicked Venom

Venom0642 said:
Why would you try installing TWRP on a AT&T S7 Edge which the bootloader is locked, that's one reason you can't go to recovery, basically you bricked your AT&T S7 Edge, try to odin Stock AT&T S7 Edge Nougat see if that gives you recovery back, and do not try installing TWRP again, if your able to Odin back to stock, good luck!
Running On Samsung Galaxy S7 Edge G935A Wicked Venom
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Click to collapse
I'll try that. And why? My own incompetence I suppose....however I couldn't access stock recovery after I rooted either, before I tried to install TWRP, so I'm not sure how that factors in?

Venom0642 said:
Why would you try installing TWRP on a AT&T S7 Edge which the bootloader is locked, that's one reason you can't go to recovery, basically you bricked your AT&T S7 Edge, try to odin Stock AT&T S7 Edge Nougat see if that gives you recovery back, and do not try installing TWRP again, if your able to Odin back to stock, good luck!
Running On Samsung Galaxy S7 Edge G935A Wicked Venom
Click to expand...
Click to collapse
Flashing nougat worked! Just wanted to say thank you for your input!

Samsung S7 Donwgrade to Android 6.0.1

Dear All my Brothers i have issue about to Downgrade my Samsung S7 Edge to Andriod 6.0.1.
i try and search alot in Youtube and forum but i have these types of issue when doing Flash
1. when i try to flash from ODin 3.12.3 then it give me Fail AUTH Error
2. when i try to Downgrade from ODIN 3.12.12 it give me Fail Model Dismatch
i have already flash the S7 through Combination file of COMBINATION_FA60_G935AUCU7ARG1_CL11071963_QB18982740_REV02_user_mid_noship_MULTI_CERT.tar
but after Combination when i try to upload Firmware file it give me above 2 errors?
on Screen showing FRP Lock N
Samsung SM-G935A S7 Edge
before combination file my Phone Model was showing in Downlaod mode is SM-G935V
now i dont know what to do how to recover my phone from Factory Binary

I believe the newer firmwares don't allow you to downgrade past a certain version.

Cloud.Envy said:
I believe the newer firmwares don't allow you to downgrade past a certain version.
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Click to collapse
yeah may be but now i want to recover my phone back so it not allow me to upload android 8.0 ? which firmware should i upload again to normal the phone

masu222 said:
yeah may be but now i want to recover my phone back so it not allow me to upload android 8.0 ? which firmware should i upload again to normal the phone
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Click to collapse
You should try the the stock firmware 8.0(Sammobile) and use a diiferent odin version. I had multiple failed flashes from Nougat to Oreo, until I realized older odin versions cannot flash the new Android Oreo firmwares with compressed binaries (lz4). I used a patched odin (3.13.1) and it worked flawlesss.

Galaxy S7 Edge G935F (Exynos) bricked ?

Hello xda Community,
it's me again but this time in the S7 Edge section.
I have a very big problem. I have a Galaxy S7 Edge and I think it's bricked.
The Phone won't turn on and I'm not able to enter the recovery mode but the download mode is working.
I have tried to flash the Oreo Stock Rom but this didn't worked. Moreover I've tried to flash the TWRP recovery but this failed too
I get errors like Kernel Rev check fail device or sw rev check fail Bootloader.
I should mention that the FRP Lock is ON
Please help me guys I thank you all for the ideas
PS: I'm very sorry about my English. I know, it's not perfect :laugh:

Your stock software should match with mobile type .If they are same it wont be a problem..

Najam9849 said:
Your stock software should match with mobile type .If they are same it wont be a problem..
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Click to collapse
it doesn't work for me. I have tried to left the BL part empty but this also failed

does somebody has an idea ? :crying:

Pick a right version from sammobile and do this with old version of odin .Try try try and you might end up in success.

xTheGerman said:
Hello xda Community,
it's me again but this time in the S7 Edge section.
I have a very big problem. I have a Galaxy S7 Edge and I think it's bricked.
The Phone won't turn on and I'm not able to enter the recovery mode but the download mode is working.
I have tried to flash the Oreo Stock Rom but this didn't worked. Moreover I've tried to flash the TWRP recovery but this failed too
I get errors like Kernel Rev check fail device or sw rev check fail Bootloader.
I should mention that the FRP Lock is ON
Please help me guys I thank you all for the ideas
PS: I'm very sorry about my English. I know, it's not perfect :laugh:
Click to expand...
Click to collapse
I did the same thing but i managed to get it working by flashing TRWP again through odin. It would also be better if u copy over a custom rom aswell using the adb push command in terminal because i accidentaly set off DM verity.

anonymous4272 said:
I did the same thing but i managed to get it working by flashing TRWP again through odin. It would also be better if u copy over a custom rom aswell using the adb push command in terminal because i accidentaly set off DM verity.
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Click to collapse
My S7 Edge is blocking the flash process with Odin because of the FRP Lock
Thats why I am not able to Flash TWRP

Flash twrp and then a custom rom afterwards..

Najam9849 said:
Flash twrp and then a custom rom afterwards..
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Click to collapse
I already said that I'm not able to flash TWRP. The reason is that my phone denies the flash process because of the FRP Lock

you can try https://forum.xda-developers.com/s7-edge/how-to/how-to-remove-frp-lock-guide-t3855793

I had this exact same problem a month back, I forgot to enable OEM unlock and I faced the same issues.
I downloaded the very latest stock rom at the time, and it was the 1st November security patch version. Try that and let me know.

Go to grifofdev and then ask the admin.He is a helpful person and will solve your problem..

Download the latest oreo firmware from updato, sammobile download speed is ridiculous. The latest at the time solved it for me 100%

sibozzy29 said:
Download the latest oreo firmware from updato, sammobile download speed is ridiculous. The latest at the time solved it for me 100%
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Click to collapse
It helped me aswell!!