Database Info

SM-G920F Downgrade from 7.0 to 6.0.0.1 failed

Hi XDA Members,
I have a very curious problem and hope somebody has an idea what could be wrong.
I have a stock phone that has been updated by a friend to 7.0 but now he wants to go back.
I have flashed a one part stock rom with Odin with complete sucess but after reboot (even showing the erasing process)
the phone boots up and 7.0 is still there and even all the apps and data are still available.
So I tried a 4part stock rom and to my surprise the same thing happened. Odin finished with sucess, phone reboots now it
even installs the bloatware apps and yet it is still running 7.0
I am loosing my mind here. Do I need to flash a pit file? Do I need to root before I flash? What am I doing wrong or will I be stuck with 7.0 forever now?
kind regards
Piko

What's the build number of the rom that you're trying to flash?

forumber2 said:
What's the build number of the rom that you're trying to flash?
Click to expand...
Click to collapse
I have tried to flash the following one part rom:
G920FXXU5EQDF_G920FDBT5EQD1_G920FXXU5EQCD_HOME.tar.md5
And the following 4 part rom:
SM-G920F_1_20170426130439_pzt4l73uw1_fac
Thank you for trying to help me. This is much appreciated.

piko666 said:
I have tried to flash the following one part rom:
G920FXXU5EQDF_G920FDBT5EQD1_G920FXXU5EQCD_HOME.tar.md5
And the following 4 part rom:
SM-G920F_1_20170426130439_pzt4l73uw1_fac
Thank you for trying to help me. This is much appreciated.
Click to expand...
Click to collapse
You need flash rom which starts with G920FXXU5D or G920FXXS5D if you want to downgrade to 6.0.1
Btw, you don't have to flash 4 part rom.

forumber2 said:
You need flash rom which starts with G920FXXU5D or G920FXXS5D if you want to downgrade to 6.0.1
Btw, you don't have to flash 4 part rom.
Click to expand...
Click to collapse
Thank you very much. I'll try to find one of these roms and will report back to you!

forumber2 said:
You need flash rom which starts with G920FXXU5D or G920FXXS5D if you want to downgrade to 6.0.1
Btw, you don't have to flash 4 part rom.
Click to expand...
Click to collapse
I have just flashed the G920FXXU5DQA7_G920FDBT5DQA3_G920FXXU5DPL3_HOME.tar.md5 but now if
I start the phone it says "SYSTEM UI STOPPED" when I hit ok - it just says this again and again. Guess this was the wrong
rom once again? I just hope I did not brick the phone yet. Should I flash it again with another ROM? Could you maybe point me to the correct rom I need to download?
many thanks in advance
piko

piko666 said:
I have just flashed the G920FXXU5DQA7_G920FDBT5DQA3_G920FXXU5DPL3_HOME.tar.md5 but now if
I start the phone it says "SYSTEM UI STOPPED" when I hit ok - it just says this again and again. Guess this was the wrong
rom once again? I just hope I did not brick the phone yet. Should I flash it again with another ROM? Could you maybe point me to the correct rom I need to download?
many thanks in advance
piko
Click to expand...
Click to collapse
You've flashed the right firmware.
You just need to format the device;

forumber2 said:
You've flashed the right firmware.
You just need to format the device;
Click to expand...
Click to collapse
Oh my god. That did the trick - and I thought it was over. How did you know what version to flash for the downgrade?
And is there anything good I can do for you to say thank you for helping me out this much? Seriously you helped me soo much.
:highfive:
piko

Im planning to downgrade too,battery life sucks on nougat, really bad its even worse than MM

Soufiansky said:
Im planning to downgrade too,battery life sucks on nougat, really bad its even worse than MM
Click to expand...
Click to collapse
My main reason is that they changed some core things. I now cannot stream anything from the phone (screen capture) without root. Also some oculus apps just keep crashing all the time.

piko666 said:
My main reason is that they changed some core things. I now cannot stream anything from the phone (screen capture) without root. Also some oculus apps just keep crashing all the time.
Click to expand...
Click to collapse
So how is the downgrade now ? Everything going well ?

forumber2 said:
You need flash rom which starts with G920FXXU5D or G920FXXS5D if you want to downgrade to 6.0.1
Btw, you don't have to flash 4 part rom.
Click to expand...
Click to collapse
Hello I have had the same type of trouble only with mine is >/
I have a Samsung Galaxy S5 from Walmart. It's the Straight talk variant SM-S903VLUDU4APH3. MY phone came with 6.0.1 Mm. I flashed the stock rom 4.4.4 kk using Odin3 V.3.10.6 but upon completion of a successful flash the phone does the reboot process but boots into factory recovery and says installing system update. The says erasing then reboots to where I started from same rom, it's like it allows the phone to get the update but then reboots and does a factory reset.

downgrade from 6.1 to 5.1
forumber2 said:
You need flash rom which starts with G920FXXU5D or G920FXXS5D if you want to downgrade to 6.0.1
Btw, you don't have to flash 4 part rom.
Click to expand...
Click to collapse
Can you help me to downgrade from 6.1 to 5.1.1 , what kind of PDA should i download i fave G920FXXU5DQA7

G920FXXU3QPB2 for example. To download it use SamFirm and flash with latest Odin3 3.12.7.

I have problem with downgrade 7.0 to 6.0.1
Can someone help me downgrade my s6 g920f (android 7.0 12/25/2017) to android 6.0.1 from 01/03/2017. Do i must install some like apps for my computer to do that, or only flash 1 file rom by odin ?

@piko666 : may i know the steps of downgrading the OS? i am using SM-G920F as well...7.0 too laggy...thanks for your guide

S6 Modem downgrade
forumber2 said:
You've flashed the right firmware.
You just need to format the device;
Click to expand...
Click to collapse
Hello, Can you please help me with downgrading my modem. I have S6 G920I and using resurrection Remix ROM based on Android pie.
I have the modem and boot files for stock 5.1.1 ROM
But i am unable to flash it using ODIN.
Can you please tell me what possible mistakes i am doing and a proper solution?
TIA

remocore said:
Hello, Can you please help me with downgrading my modem. I have S6 G920I and using resurrection Remix ROM based on Android pie.
I have the modem and boot files for stock 5.1.1 ROM
But i am unable to flash it using ODIN.
Can you please tell me what possible mistakes i am doing and a proper solution?
TIA
Click to expand...
Click to collapse
Why do you want to downgrade the modem?
And what is your current bootloader & modem version?

forumber2 said:
Why do you want to downgrade the modem?
And what is your current bootloader & modem version?
Click to expand...
Click to collapse
Here is all the info of my phones current state
Model : SM-G920F
Device : zeroflte
Brand Name : Samsung
Chipset : exynos5
Hw Version : exynos7420
Androiad Version : 9
Usb.config : adb
Model ID : zerofltexx-userdebug 9 PQ3A.190801.002 eng.jmpfbm.20191030.002732 test-keys
PDA :
Platform : arm64-v8a
language : en-US
Security Patch : 2019-09-05
Root State : Rooted(20.1:MAGISKSU)
Encryption State : unencrypted
Bootloader State : G920IDVU4FRF3
description : zerofltexx-userdebug 9 PQ3A.190801.002 eng.jmpfbm.20191030.002732 test-keys
Thanks

g955f latest firmware but need to downgrade to 7.0

hi all
i got a samsung s8+ with G955FXXU2CRED_CL13569719 firmware on it.
How can i downgrade it to android 7.0?
If i flash 7.0 software i got failed when i flash BL
If i only flash AP the device shows encryption failed and then then i get boot loop with erasing android icon.
Hope some one has a solution here.

u can try downgrade to CRAP firmware (the 1st Oreo) and then try to downgrade to android 7.0 with all files.
I downgraded from 3 previous versiones of Oreo, didnt try agaik with the later ones but i read that the new boatloader in kinda tricky now.

galarond said:
u can try downgrade to CRAP firmware (the 1st Oreo) and then try to downgrade to android 7.0 with all files.
I downgraded from 3 previous versiones of Oreo, didnt try agaik with the later ones but i read that the new boatloader in kinda tricky now.
Click to expand...
Click to collapse
With crap i also get failed
When i flash Crap AP File only is get stuck in boot loop With installing update. And then reboot.

Got it with a new Combination file

pctronic said:
Got it with a new Combination file
Click to expand...
Click to collapse
Please do share...and did you manage to install TWRP recovery afterwards?

Moe5508 said:
Please do share...and did you manage to install TWRP recovery afterwards?
Click to expand...
Click to collapse
Didnt use TWRP here is link for combination
https://shell.boxwares.com/Download.aspx?L=6583

pctronic said:
hi all
i got a samsung s8+ with G955FXXU2CRED_CL13569719 firmware on it.
How can i downgrade it to android 7.0?
If i flash 7.0 software i got failed when i flash BL
If i only flash AP the device shows encryption failed and then then i get boot loop with erasing android icon.
Hope some one has a solution here.
Click to expand...
Click to collapse
pctronic said:
Got it with a new Combination file
Click to expand...
Click to collapse
pctronic said:
Didnt use TWRP here is link for combination
https://shell.boxwares.com/Download.aspx?L=6583
Click to expand...
Click to collapse
Stability?! Battery?! Lags?! Connectivity?! Source?!
Remove/change PDA reg?! Erase data?! (CSC issue)
Is this rom Nougat or prev Oreo version?!
Some info about this rom?! It comes from some forum's discussion?!

Odin flash works fine but then am on what seems to be bootloop...am stuck on screen with "FACTORY BINARY" message showing and big progress arrows now for 20 minutes...is that normal to take so long?

pctronic said:
Got it with a new Combination file
Click to expand...
Click to collapse
Will this work on s8 too?

hello
This can not be used combination for daily use is only for developers and fix the problem. Now working after this version combination . you can be loaded here
https://updato.com/firmware-archive-select-model?record=E60FECB3632411E89F15FA163EE8F90B
download and flash with odin without CP file and no your mobile go back to 7.0 .
thanks I hope that I have helped you.

nabel_sweed said:
hello
This can not be used combination for daily use is only for developers and fix the problem. Now working after this version combination . you can be loaded here
https://updato.com/firmware-archive-select-model?record=E60FECB3632411E89F15FA163EE8F90B
download and flash with odin without CP file and no your mobile go back to 7.0 .
thanks I hope that I have helped you.
Click to expand...
Click to collapse
Nah this fails on the latest U2CRED ROM with bootloader v2...

Am I able to flash the U firmware on this Verizon Firmware?

Hello! I was trying to figure out if there was a way to remove the bloatware from this phone, without a root. I might not be able to since my build number is G930VVRSBCTC1, which is the B bootloader. If there is, or you need more info, please notify me. Thank you

TheVideoEffect said:
Hello! I was trying to figure out if there was a way to remove the bloatware from this phone, without a root. I might not be able to since my build number is G930VVRSBCTC1, which is the B bootloader. If there is, or you need more info, please notify me. Thank you
Click to expand...
Click to collapse
The issue with the B bootloader has to do with rooting, not with flashing unbranded firmware through Odin. You just need the correct U firmware and Odin.

You might also need the patched Odin, I can't recall which models require it but some do for flashing from carrier to non-carrier software. Try normal Odin first and if it gives a mismatch error then use patched Odin.
https://forum.xda-developers.com/android/software/patched-odin-3-13-1-t3762572

Drunkpilot said:
The issue with the B bootloader has to do with rooting, not with flashing unbranded firmware through Odin. You just need the correct U firmware and Odin.
Click to expand...
Click to collapse
Well, how would I know which version of the U firmware I would need? Does it need to match my bootloader version?

I'm trying to do the opposite. I have a Verizon S7 that I long ago flashed to the 930U firmware. Now it's being sold, and it will need the 930V firmware. But all of my attempts to flash back to Verizon has failed miserably on every version of Odin I've tried. Not sure where to go next.
To add, I keep getting FAIL! (Auth) errors no matter what I do. I've tried different PCs. Different firmware. Different cables. Nothing.

Some of the firmwares are at different bootloader levels, so if the G930V firmware you're trying to flash is an older bootloader it'll fail. Try flashing everything but BL.
If that doesn't work also try patched Odin as it can bypass some fail messages https://forum.xda-developers.com/android/software/patched-odin-3-13-1-t3762572

Beanvee7 said:
Some of the firmwares are at different bootloader levels, so if the G930V firmware you're trying to flash is an older bootloader it'll fail. Try flashing everything but BL.
If that doesn't work also try patched Odin as it can bypass some fail messages https://forum.xda-developers.com/android/software/patched-odin-3-13-1-t3762572
Click to expand...
Click to collapse
Im finally getting around to flashing this, as my dumb phone went into the Verizon software error so why not

TheVideoEffect said:
Im finally getting around to flashing this, as my dumb phone went into the Verizon software error so why not
Click to expand...
Click to collapse
Alright here we go again. My phone gets stopped when it trys to flash the recovery.img in the AP file...

help in F41/M21s development ?

I know that the device is recent, but devices with very similar hardware like M31, A51 and M30s already have a lot of development, while the F41 does not start with twrp, thanks to vbmeta. the community of this device needs help and a little attention, I ask the developers to focus on this device, it will be of great help ^^

Is TWRP available for F41 ?

rixyy said:
Is TWRP available for F41 ?
Click to expand...
Click to collapse
I recently discovered that the stock rom of the m31 works on the F41, as the M31 has twrp, so the answer is yes

Not working
M31 TWRP file doesnt works

rixyy said:
Not working
M31 TWRP file doesnt works
Click to expand...
Click to collapse
to work you need to install the stock rom of the M31 and follow the step by step of the M31 to install the twrp

I have flashed M31 Stock rom on my F41 it worked but I was still unable to Flash TWRP "Only Official Released Binaries Are Allowed To Be Flashed(recovery)" this is error that popped up. This could be because of that I have flashed latest M31 firmware but whatever might be case I am unable to downgrade the firmware or even flash the original rom of F41 "SW REV. CHECK FAIL. DEVICE: 2, BINARY: 1" this error comes on my phone. Can you explain me what is this problem and why is it occuring. And how can I flash my original stock rom of F41 back.

rixyy said:
I have flashed M31 Stock rom on my F41 it worked but I was still unable to Flash TWRP "Only Official Released Binaries Are Allowed To Be Flashed(recovery)" this is error that popped up. This could be because of that I have flashed latest M31 firmware but whatever might be case I am unable to downgrade the firmware or even flash the original rom of F41 "SW REV. CHECK FAIL. DEVICE: 2, BINARY: 1" this error comes on my phone. Can you explain me what is this problem and why is it occuring. And how can I flash my original stock rom of F41 back.
Click to expand...
Click to collapse
This is due to the bootloader. Try extracting the firmware you are flashing and delete all files ending with ".bin"

Tab E said:
This is due to the bootloader. Try extracting the firmware you are flashing and delete all files ending with ".bin"
Click to expand...
Click to collapse
Doesn't works

Question [SOLVED]

hello, my problem is with my A12 (A125M) so he stuck in "an error has occurred while updating the device software.Use the Emergency recovery function in the Smart Switch PC software" i tried much things and still not working, also i tried too flash the stock rom i got this error "SW REV CHECK FAIL : [vbmeta] Fused 3 > Binary 2 RP check error : vbmeta , if someone know how to fix it please comment, thanks. (also i have twrp installed)

Disobedient. said:
hello, my problem is with my A12 (A125M) so he stuck in "an error has occurred while updating the device software.Use the Emergency recovery function in the Smart Switch PC software" i tried much things and still not working, also i tried too flash the stock rom i got this error "SW REV CHECK FAIL : [vbmeta] Fused 3 > Binary 2 RP check error : vbmeta , if someone know how to fix it please comment, thanks. (also i have twrp installed)
Click to expand...
Click to collapse
Flash the right firmware binary version. You can’t flash binary lower then your current firmware version

edward0181 said:
Flash the right firmware binary version. You can’t flash binary lower then your current firmware version
Click to expand...
Click to collapse
alright i'm gonna do this! thanks

edward0181 said:
Flash the right firmware binary version. You can’t flash binary lower then your current firmware version
Click to expand...
Click to collapse
So tried the my stock rom binary 2 and 3 and still not working. if you have another way to i try please comment

.

Disobedient. said:
So tried the my stock rom binary 2 and 3 and still not working. if you have another way to i try please comment
Click to expand...
Click to collapse
Where are you downloading your firmware? And what is the exact firmware you're flashing?

ShaDisNX255 said:
Where are you downloading your firmware? And what is the exact firmware you're flashing?
Click to expand...
Click to collapse
i got a way to solve it
first i flashed wrong binary just to get the error and go to in download mode,then i flashed the stock rom and worked.