downgrade from oreo to nougat - Samsung Galaxy S8+ Questions & Answers

Hello everyone I have a galaxy s8 + by mistake I installed this firmware G955FXXU2CRED I would like to return to nougat or if there is a way to install the twrp.Thanks

No. Not yet...Bootloader got updated by Samsung to U2 and there's no way to install custom recovery yet...

galaxy s8 plus root
hello everyone I have this firmware G955FXXU2CRED and you can root or install a recovery.Thanks

Do you have OEM UNLOCK enabled in your Developer Options menu?
If so then you possibly can using Odin flash of the TWTP recovery tar file in AP slot....

Is not there OEM in developer options as you unlock? Thank you

[email protected] said:
Hello everyone I have a galaxy s8 + by mistake I installed this firmware G955FXXU2CRED I would like to return to nougat or if there is a way to install the twrp.Thanks
Click to expand...
Click to collapse
OK. So how did you install this firmware? You might be in that 7 day waiting period before OEM UNLOCK becomes available again...the key suggestion there is for you NOT TO reboot your device at all for the next 7 days till OEM UNLOCK becomes available again and then you can flash TWRP and then a custom Nougat ROM after that...
Check in Settings > About Phone > Up time how many hours your device has been on and subtract from (7 x 24)...that's the number of hours you have to wait till OEM UNLOCK should become available...

Moe5508 said:
OK. So how did you install this firmware? You might be in that 7 day waiting period before OEM UNLOCK becomes available again...the key suggestion there is for you NOT TO reboot your device at all for the next 7 days till OEM UNLOCK becomes available again and then you can flash TWRP and then a custom Nougat ROM after that...
Check in Settings > About Phone > Up time how many hours your device has been on and subtract from (7 x 24)...that's the number of hours you have to wait till OEM UNLOCK should become available...
Click to expand...
Click to collapse
EDIT:
There's a trick I've read in another thread for jigging the 7-day waiting period...but I'm only 8 hours away from waiting out the period normally that I don't wanna risk rebooting it and then having to wait another extra 7 days
But some users confirm its working on the U2CRED firmware...
1. Turn on plane mode
2. Go to time setting
3. Change automatic update to manual
4. Change date 8 days back
5. Restart phone
6. Turn on dev options
7. Restart phone
8.Change back date to normal
9. Turn off plane mode
10. You should now have OEM Unlock visible in Developer Options menu ( if not repeat operation till you have it)

What I'd you have one unlocked, but download. Mode say prenormal?

[email protected] said:
Hello everyone I have a galaxy s8 + by mistake I installed this firmware G955FXXU2CRED I would like to return to nougat or if there is a way to install the twrp.Thanks
Click to expand...
Click to collapse
Why the hell would you downgrade to Nougat again?

ChanceGPM said:
Why the hell would you downgrade to Nougat again?
Click to expand...
Click to collapse
Root

FuMMoD said:
Root
Click to expand...
Click to collapse
I am on Oreo with root.

ChanceGPM said:
I am on Oreo with root.
Click to expand...
Click to collapse
Wait what? I have been gone for a few months. There's root for non exynos on oreo now?

FuMMoD said:
Wait what? I have been gone for a few months. There's root for non exynos on oreo now?
Click to expand...
Click to collapse
I got exynos so I don't know

Twrp stuck
Two days now i tried to install TWRP on my 955f with 2CRED stock firmware and my phone stuck on TWRP' s swipe screen!!!
No bootloop!!
No touch sensor!!
Just stuck on TWRP' s splash screen!!!
What's going wrong??
I know how to root a phone, because i had root every phone who was in my hands about 5 years from now.
Can anyone help me?

Maybe you have older version. I tried to root, flashed TWRP and supersu, after first reboot phone was not booting up and got message, only official binaries can be flashed. Then I flashed back official rom with Odin. I've got cred firmware version
---------- Post added at 09:47 PM ---------- Previous post was at 09:45 PM ----------
kOnIgI said:
Two days now i tried to install TWRP on my 955f with 2CRED stock firmware and my phone stuck on TWRP' s swipe screen!!!
No bootloop!!
No touch sensor!!
Just stuck on TWRP' s splash screen!!!
What's going wrong??
I know how to root a phone, because i had root every phone who was in my hands about 5 years from now.
Can anyone help me?
Click to expand...
Click to collapse
It seems you were flashing TWRP for s8 on s8 plus.

geoaka911 said:
Maybe you have older version. I tried to root, flashed TWRP and supersu, after first reboot phone was not booting up and got message, only official binaries can be flashed. Then I flashed back official rom with Odin. I've got cred firmware version
---------- Post added at 09:47 PM ---------- Previous post was at 09:45 PM ----------
It seems you were flashing TWRP for s8 on s8 plus.
Click to expand...
Click to collapse
I have the Same problem with my S8+ 955F
Help needed...I tried many firmware...Odin fails at Sboot.bin...I think my BL is broken..

Don't worry, try latest odin with latest firmware from sammobile.

geoaka911 said:
Don't worry, try latest odin with latest firmware from sammobile.
Click to expand...
Click to collapse
I tried...but Odin failed at Sboot.bin..

SouraV ZeEKz said:
I tried...but Odin failed at Sboot.bin..
Click to expand...
Click to collapse
Eu Tive esse mesmo problema com o arquivo BL o AP CP CSC Instalam se vc n colocar o BL so q dai sem o boot o celular n inicia e o aparelho aparecia erro de binario q meu aparelho estava com o binario 2 a atualização dele pro android 8.0.0 ja instala esse binario e a rom nogaut 7.0 para downgrade so tem com binario 1 por isso do erro e agr ja tem ate o binario 3 estou com a firmware g955fxxu2cred prguei na sammobile essa romdepois de ter ficado um periodo sem aparelho pq ele havia dado loop infinito na tela da samsungde boot pq tentei forcar uma rom nogaut 7.0 com binario 1 dai depois de dois dias estudando oq estava acontecendo q fui me dar conta e depois de muita pesquisa tbm tive q usar um arquivo combination tbm no binario 2 pra poder voltar do loop e instalar uma firmware nova q no caso usei a g955fxxu2cred e agr tbm to lutando pesquisando pra ver se consigo enraizar ou algum modo de aparecer de volta unlock oem mais ta dificil mais uma hr chegamos la....:rir::Boa::Boa::Boa:

Moe5508 said:
EDIT:
There's a trick I've read in another thread for jigging the 7-day waiting period...but I'm only 8 hours away from waiting out the period normally that I don't wanna risk rebooting it and then having to wait another extra 7 days
But some users confirm its working on the U2CRED firmware...
1. Turn on plane mode
2. Go to time setting
3. Change automatic update to manual
4. Change date 8 days back
5. Restart phone
6. Turn on dev options
7. Restart phone
8.Change back date to normal
9. Turn off plane mode
10. You should now have OEM Unlock visible in Developer Options menu ( if not repeat operation till you have it)
Click to expand...
Click to collapse
No work anymore to G950FXXU3CRGH rom.

Related

S7 Active Root

S7 active root done for build pk2
flash this file in odin
https://www.dropbox.com/s/bc3d3y74ur2h8nh/unlockg891aboot.tar.md5?dl=0
Now you can root using the same method as the s7 and edge I used this method personally but with the above file instead of theirs for the other models
http://galaxys7root.com/galaxy-s7-s7-edge-root/how-to-root-attt-mobilesprintverizon-galaxy-s7s7-edge/
Thanks to freddierice for proving this works when others was too scared to try it and FtaWolf for his help getting wifi fixed where it would remember the password
wifi fix is found on page 4 of http://galaxys7root.com/galaxy-s7-s7-edge-root/how-to-root-attt-mobilesprintverizon-galaxy-s7s7-edge/
XDA:DevDB Information
S7 Active Root, Kernel for the Samsung Galaxy S7 Active
Contributors
activefan01, activefan01, freddierice, FtaWolf
Kernel Special Features:
Version Information
Status: Testing
Created 2016-12-30
Last Updated 2016-12-29
Nice, Finally root for my device now I can really remove some of this bloatware. Hopeful that there's a custom recovery next, then roms maybe.
If I have to do a factory reset will it wipe the SD card as well? Hopefully it won't matter as I've seen numerous people go through the process without losing anything. I was just planning on backing up everything to my SD.
pside15 said:
If I have to do a factory reset will it wipe the SD card as well? Hopefully it won't matter as I've seen numerous people go through the process without losing anything. I was just planning on backing up everything to my SD.
Click to expand...
Click to collapse
Just remove the SD first then you won't have to worry about it erasing it. I don't know though if it was formatted as portable storage though if it will still work. I don't believe it will though.
now where's root for android n?
When you do a factory reset it just erases the internal memory unless you actually specify for it to erase the external sd card. I've done a bunch of factory resets because I've had roms stop working and had to do them.
Does it still work on s7 ative at&t?
I just got an ATT G891A yesterday and its still locked. I have tried about 3 different S7 roms and they wipe out recovery and then it gets stuck in a boot loop. I did find an oem rom that will install and fix recovery too.
I had to Odin one more file and do a little bit of adb but root works.
G891A_7.0_ENG_ROOT.tar
Edit: Looks like i wont be able to get ATT to unlock it for a while. He still owes $300+ on the phone. Lol
ONE WORD
k1ll1nt1m3 said:
I just got an ATT G891A yesterday and its still locked. I have tried about 3 different S7 roms and they wipe out recovery and then it gets stuck in a boot loop. I did find an oem rom that will install and fix recovery too.
I had to Odin one more file and do a little bit of adb but root works.
G891A_7.0_ENG_ROOT.tar
Edit: Looks like i wont be able to get ATT to unlock it for a while. He still owes $300+ on the phone. Lol
Click to expand...
Click to collapse
EBAY!
Why do you sell a phone that you still owe $300 on? And buy a $800 phone. What ever. He said he will give my money back.
Sorry, I guess I'm out of the G891A. Kind of a bummer. I stripped a ton of it in testing but, Im not good enough to do a full Rom. There was one apk that made it loop for 5 times, then it reinstalled that apk, and then it would boot again. Ill update when i get it back in front of me. I restored it to factory so i can give it back.
I looked in settings and it showed those apps as not installed. I bet I removed 40 apps. It was better. I don't know know enough to change the config files.
jjta said:
EBAY!
Click to expand...
Click to collapse
Yours is locked? I owe like 600 on mine yet, bought a unlock code thinking it was still locked but it wasn't. I think it was the AV I had installed originally that prevented me from changing before.
can any galaxy s7 be root and have free hotspot as of 2018 looking for new phone but need free hotspot seeing I have unlimited data verison wireless ?
trips knox?
Will this work for ATT s7 Active with Android 7.0?
If so, is there a more detailed guide on how to root?
Would love to see a root for the s7 active current nougat with bootloader 3, or even an Oreo root for it. Tired of the att bloatware
Sent from my SAMSUNG-SM-G891A using Tapatalk
harbnger said:
Would love to see a root for the s7 active current nougat with bootloader 3, or even an Oreo root for it. Tired of the att bloatware
Sent from my SAMSUNG-SM-G891A using Tapatalk
Click to expand...
Click to collapse
doesn't @miniminus have a clean verison of Oreo on this custom rom?
i need turkish rom i dont want another options. i need only turkish rom . pls help me
Root for Oreo 8.1?
TENGO UN S7 ACTIVE. SUPONGO Q PASA EN TODOS
QUE REDUCE LA FRECUENCIA DE LA GPU A LA MITAD PASANDO DE LOS 35 C° GRADOS ESTO LIMITA MUCHO AL MOMENTO DE ESTAR JUGANDO
ABRA ALGÚN KERNEL , O MANERA DE MODIFICAR LA TEMPERATURA
PARA SOLUCIONAR ESTO
zayatsv said:
Root for Oreo 8.1?
Click to expand...
Click to collapse
Yes, please. The recent update makes my phone so slow. I want to flash back to 7.0 or even 6.0 and stay there forever
zayatsv said:
Root for Oreo 8.1?
Click to expand...
Click to collapse
If I may ask, where did you get Oreo 8.1? My SG-891A is stuck on 8.0. Mobile Hotspot & Tethering won't work because I'm no longer paying AT&T (but rather on Consumer Cellular). 8.1 is supposed to allow a Chromebook to use the phone's mobile data network, so I'm very interested in either getting 8.1 or a working root for 8.0 (which I'm still researching).
Thanks in advance,

Flash a k450 (cricket) to US610 stock firmware

Hey guys,
Just want to report that I have luck flashing a k450 with US610 firmware.
Please follow the steps at your own risk. I haven't tested if everything still work correctly.
Steps:
1) Download US610 kdz file (just do a quick google search, you should find it in the top results)
2) Extract the kdz with this tool:
https://forum.xda-developers.com/showthread.php?t=2600575
You should get a dz and dll file
3) Use lg flash tool V1.8.1.1023 to flash using the dz file and dll file extracted in step 2.
After the flashing is done, you would boot into a "minios" and
a) you should see a message "Factory reset status 2".
b) Wait a while until the message updates to "Factory reset status 3"
c) power off using pwr+vol- button.
d) power back on it should boot into android. It takes around 5 minutes for first boot.
Now since it wasn't even checking for k450 model vs us610 model mismatch, I suppose one might be able to obtain root by repacking the dz file with appropriate boot/system/recovery image.
While there's no known way to unlock the bootloader for the snaprdragon variants (K450, US610), the bootloader may not be locked to begin with. Therefore If we can repack dz file and still be able to flash a modified dz file (it should be applicable to all models?) I think we would have a good starting point for custom rom.
Questions that need answered:
1) Does download mode accept a modified dz file? i.e. prehaps the individual partition image is signed with a private key by LG and validated using a public key from the device?
2) Does the bootloader allow booting unsigned image?
Please follow the steps at your own risk. I haven't tested if everything still work correctly.
Played with the phone for around 10 mins, haven't seen anything thats not working yet. Specifically
1) Call works (not sure if this phone supports VOLTE - it drops to 3G/H+ when calling)
2) LTE works on tmobile (unlocked before flashing US610 rom)
3) WIFI works
4) Camera works
5) light sensor works
I've tested this phone with the US610 conversion for over 1 week and i couldn't be happier with it. Less bloat and as i replaced the battery too i feel it going a bit faster. Thanks man!
im from mexico my phone is free for every company what kdz US610 i need download for my criket phone?
ayuda
shifooo said:
im from mexico my phone is free for every company what kdz US610 i need download for my criket phone?
Click to expand...
Click to collapse
Amigo a mi se me quedo con el andoid tirado o muerto y la leyenda de no command... pudiste hacer lo del tuto... porque a mi se me quedo como te dije. y no encuentro la manera de ndescargar el firmware de cricket

¡Help me! The oem option disappeared from the developer settings.

I have a Samsung Galaxy J3 Prime (SM-j327T1) Android 7.0, I decided a long time ago to format my device and unfortunately the oem option disappeared and was never activated again. I tried methods such as the time and date, with the miracle box software, guides that I have found here about oem unlocking and nothing worked for me, I have even managed to see what is almost impossible. Does anyone know what I could do?
Xialent said:
I have a Samsung Galaxy J3 Prime (SM-j327T1) Android 7.0, I decided a long time ago to format my device and unfortunately the oem option disappeared and was never activated again. I tried methods such as the time and date, with the miracle box software, guides that I have found here about oem unlocking and nothing worked for me, I have even managed to see what is almost impossible. Does anyone know what I could do?
Click to expand...
Click to collapse
Wipe all data from the device and then reflash the stock firmware via Odin. It "should" return then.
Droidriven said:
Borre todos los datos del dispositivo y luego actualice el firmware original a través de Odin. Entonces "debería" volver.
Click to expand...
Click to collapse
I mean, I would first do a hard reset and then install the latest firmware version available from Odin.
Xialent said:
I mean, I would first do a hard reset and then install the latest firmware version available from Odin.
Click to expand...
Click to collapse
Yes, that is what I said.
Droidriven said:
Yes, that is what I said.
Click to expand...
Click to collapse
I did it and the oem didn't show up, this phone sucks.

Question Brickei meu Lenovo P11 Pro Snap870.

Yesterday I received my new tablet from AliExpress.
However, at the time of purchase, I forgot to ask that the seller already sent it with the Chinese rom (stock rom) and with that it came with the global rom of the device and I did not like it, precisely because it does not support updates via OTA or certifications Netflix L1 to watch videos in higher quality.
With that I looked for a tutorial on how to change the device's rom to stock. hoping it works and solves my problems. I found a video on YouTube and followed the whole step by step and successfully installed ZUI 13.0..... my tablet turned on normally, I made the settings, but when testing it was the same thing and I couldn't get what I wanted. so I came here on the forum looking for a possible solution and I found a post from a guy saying that he had done the procedure to change the rom to stock and with that he had bricked the device but with the help of a post from the group he managed to solve it. I followed his step by step and when I went to block the bootloader thinking it would solve the problem of updates via OTA and the L1 certification my tablet got stuck on the fastboot screen and I couldn't connect anymore.
I even tried to pass the same Room dnv and with that it did the whole procedure and it was successful in qfil. However, when I turned it on, the message appeared that the system was corrupted.
HELP ME PLEASE!!!!!
moreira.edu22 said:
Yesterday I received my new tablet from AliExpress.
However, at the time of purchase, I forgot to ask that the seller already sent it with the Chinese rom (stock rom) and with that it came with the global rom of the device and I did not like it, precisely because it does not support updates via OTA or certifications Netflix L1 to watch videos in higher quality.
With that I looked for a tutorial on how to change the device's rom to stock. hoping it works and solves my problems. I found a video on YouTube and followed the whole step by step and successfully installed ZUI 13.0..... my tablet turned on normally, I made the settings, but when testing it was the same thing and I couldn't get what I wanted. so I came here on the forum looking for a possible solution and I found a post from a guy saying that he had done the procedure to change the rom to stock and with that he had bricked the device but with the help of a post from the group he managed to solve it. I followed his step by step and when I went to block the bootloader thinking it would solve the problem of updates via OTA and the L1 certification my tablet got stuck on the fastboot screen and I couldn't connect anymore.
I even tried to pass the same Room dnv and with that it did the whole procedure and it was successful in qfil. However, when I turned it on, the message appeared that the system was corrupted.
HELP ME PLEASE!!!!!
Click to expand...
Click to collapse
For now, you have to Unlock Bootloader without proper unlock file first. (As lenovo don't provide anymore sn.img)
Then install
https://mirrors.lolinet.com/firmwar...ER_Q00209.3_R_ZUI_13.0.430_ST_220113_qpst.zip
With QPST Tool
Then install directly Full OTA 14.0.127.
At this time you can lock again the device and you will probably got L1 certification.
agora pela manhã vou tentar fazer o procedimento que me passou. se tudo der certo posto o desfecho aqui no grupo. de.toda forma já agradeço a atenção.
consegui pelo tutorial, foi bem difícil mas recuperei. reinstalei a rom e fiz o bloqueio novamente, dessa vez aparece a certificação L1 no Netflix, porém ainda está bem ruim a imagem. alguém tem alguma dica de como resolver o problema dos aplicativos de streaming? rom stock zui14.0.127
moreira.edu22 said:
consegui pelo tutorial, foi bem difícil mas recuperei. reinstalei a rom e fiz o bloqueio novamente, dessa vez aparece a certificação L1 no Netflix, porém ainda está bem ruim a imagem. alguém tem alguma dica de como resolver o problema dos aplicativos de streaming? rom stock zui14.0.127
Click to expand...
Click to collapse
Please use English language or we can't understand what you say....
okay. one moment
I managed by the tutorial, it was very difficult but I recovered. I reinstalled the rom and blocked it again, this time the L1 certification appears on Netflix, but the image is still pretty bad. Does anyone have any tips on how to resolve the streaming apps issue? zui14.0.127 stock rom
It's strange,cause if that tablet can boot,how the image can be bad?....
the image to tablet is Very good. but in apps streaming Its not good. i dont no why.

how to solve verizon assistant repair software upgrade error that is only processing information

como resolver o erro de atualização do software de reparo do assistente da verizon que está apenas processando informações
Mod translaton: how to resolve verizon assistant repair software update error that is only processing information
Why not did ask this question here:
download software repair assistant
Where can I download the software repair assistant. It will not run from my phone itself. My phone tells me to run it and that is all it will do. So, I need a way to download it to install on my PC.
community.verizon.com

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