Successfully Revert back to OOS 3.2.8 (MM) from Open Beta 8 (N)

[nikhil.agrawal]

I installed the N beta and have to say it was not working for me as I had a few bugs with it. There is a way to easily revert back to MM.

Boot into TWRP.
Go to advanced wipe and select everything including system. (This will delete everything including os from your phone)
Reboot and go into twrp again.
Flash 3.2.8 and SuperSu (optional)

Thats it. No need for any special build as OP said.

 

[Blubber120]

Thx for that Info. Have you been on F2fs or on ext4?

 

[Crash]

In my case I guess i can´t got beta 8 installed and twrp ask for pin did you think if i wipe data and flash 3.2.6 i manage to revert?

 

[nikhil.agrawal]

Thx for that Info. Have you been on F2fs or on ext4?

i was on ext4. to get on f2fs you have to hard reset your device after flashing beta.

 

[nikhil.agrawal]

In my case I guess i can´t got beta 8 installed and twrp ask for pin did you think if i wipe data and flash 3.2.6 i manage to revert?

I think you have enabled pin on bootup. You can try disabling it and then you should be able to get to recovery.

 

[Blubber120]

Thx. I am afraid, if on f2fs, it wouldnt be that easy, but good to know that it works if we stayed on ext4

 

[nikhil.agrawal]

Thx. I am afraid, if on f2fs, it wouldnt be that easy, but good to know that it works if we stayed on ext4

you can clean reflash the open beta 8 instead of 3.2.8 which would take you back to ext4 then you can flash 3.2.8.

 

[neeraj679]

what is the file system by default in op3 and will installing open beta 8 change file system to f2fs or to ext4?? thanks

 

[Blubber120]

Ext4 is default. Whether ob8 changes it or not, i got no aim.

 

[silentvisitor]

I installed the N beta and have to say it was not working for me as I had a few bugs with it. There is a way to easily revert back to MM.

Boot into TWRP.
Go to advanced wipe and select everything including system. (This will delete everything including os from your phone)
Reboot and go into twrp again.
Flash 3.2.8 and SuperSu (optional)

Thats it. No need for any special build as OP said.

Thanks for sharing :good:
Very useful info.

 

[daninantro]

Correct me if I am wrong, but this method to revert back to 3.2.8 will only work only if you have flashed open beta 8 with official twrp as the partition will remain to EXT4.

If you have flashed the update through stock or modded twrp recovery then your system partition will become F2FS so this method to revert back to 3.2.8 will not work as it need EXT4 system partition.

 

[nikhil.agrawal]

Correct me if I am wrong, but this method to revert back to 3.2.8 will only work only if you have flashed open beta 8 with official twrp as the partition will remain to EXT4.

If you have flashed the update through stock or modded twrp recovery then your system partition will become F2FS so this method to revert back to 3.2.8 will not work as it need EXT4 system partition.

I'm on the latest twrp by eng.stk, twrp-3.0.2-1.28

 

[daninantro]

I'm on the latest twrp by eng.stk, twrp-3.0.2-1.28

So I am guessing your system partition is ext4 and f2fs , right? Coz, after a clean flash the system will become f2fs partition (thats what I read)
EDIT: Oh, You need to do hard reset for f2fs..
Also, did you read another thread? the users who did a remote session with OP said that u need some certificate file to downgrade to official OTA. something related to encryption

 

[nikhil.agrawal]

So I am guessing your system partition is ext4 and f2fs , right? Coz, after a clean flash the system will become f2fs partition (thats what I read)

No it remains on ext4 even after a clean flash. You have do a hard reset to change it to f2fs.

 

[aadityarulez]

I wonder what happens if file system is changed to f2fs. Should we change the partition to ext4 in twrp before installing OOS 3.2.8?

 

[null0seven]

I installed the N beta and have to say it was not working for me as I had a few bugs with it. There is a way to easily revert back to MM.

Boot into TWRP.
Go to advanced wipe and select everything including system. (This will delete everything including os from your phone)
Reboot and go into twrp again.
Flash 3.2.8 and SuperSu (optional)

Thats it. No need for any special build as OP said.

Buddy,
"wipe everything", that includes internal storage.. I read that it's not a good ideea to wipe internal storage.
But, thanks for info.

 

[messiahfreedom]

When you say wipe everything do you also mean internal storage? I really don't want to wipe that if it isn't absolutely necessary.

 

[GaugeX]

I am on Arter's CM13 Rom with modified kernel and with cache, system and data, all on f2fs.
What all do i have to keep on f2fs and what on ext4 to install Beta8.
After that i can follow all the steps with modified recovery, right? Or do i have to flash 3.5.5 or Beta7 first?

 

[AcmE85]

I am on Arter's CM13 Rom with modified kernel and with cache, system and data, all on f2fs.
What all do i have to keep on f2fs and what on ext4 to install Beta8.
After that i can follow all the steps with modified recovery, right? Or do i have to flash 3.5.5 or Beta7 first?

I know that the OP3T only uses F2FS for the DATA partition.
All other partitions are EXT4.

So I guess they will probably keep it that way on Nougat.
The beta 8 kernel might actually support F2FS for the other partitions, but without the source code I think you can only try.
Personally I am running Nougat Beta 8 as mentioned with DATA only on F2FS.

 

[manishsoni7689]

it might be a silly question, but now reading a lot about ext4 and F2FS everything I am totally messed up. Below are the confusions/queries-
1. How can I come to know I am on which files system, ext4 or f2fs ? (if I have twrp installed)
2. can it be changed from on to other, if yes, how?
3. Two latest builds - stock 3.2.8 and beta 8 are on ext4 and f2fs respectively, is it correct?
4. If I am on beta8 (flashed via modded twrp), how can I downgrade to stock 3.2.8 ?