General [OnePlus 9 Pro][ROM][OTA][Oxygen OS] Repo of Oxygen OS Builds

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Jack Droid

Senior Member
Jul 15, 2014
201
30
Hi there,

I don't own this device (my daily driver is a 10 Pro), but I nonetheless second what @avid_droid said, meaning you should fully wipe your phone when attempting to downgrading, so that you avoid unforeseen issues.
There's a downgrade zip to C.62 listed in the OP, you could try using it and then installing F.16 by yourself. Also about the downgrade zip, I think it would be more appropriate to use it via built-in local update than via TWRP.

Another way to downgrade would be using MSM tool to go back to OOS 11 and then installing OOS 12 prior to flashing OOS 13, but that would be somewhat overkill.

(Btw I'm a guy).
Thanks for your reply.

If I well understoood you don't recommend to downgrade by using TWRP but you have advisde that : "They can be flashed via local update in Settings --> System --> System Updates or TWRP recovery".

I well know about downgrading by using MSM tool and your C.62 downgrade zip but my question is about using them with TWRP...

So, is it better to don't use TWRP for downgrading ?
If so, I think it would be better to delete such information....



Just a question : is the C.62 downgrade zip flashable through any custom roms OR is it intended for use with stock roms only ?

Thanks again !
 
Last edited:

Wishmasterflo

Senior Member
Nov 21, 2018
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Thanks for your reply.

If I well understoood you don't recommend to downgrade by using TWRP but you have advisde that : "They can be flashed via local update in Settings --> System --> System Updates or TWRP recovery".

I well know about downgrading by using MSM tool and your C.62 downgrade zip but my question is about using them with TWRP...

So, is it better to don't use TWRP for downgrading ?
If so, I think it would be better to delete such information....



Just a question : is the C.62 downgrade zip flashable through any custom roms OR is it intended for use with stock roms only ?

Thanks again !
It should be fine to flash it via TWRP as well.
No the downgrade zip files can only be used within OOS and not from a custom ROM.
 
If I well understoood you don't recommend to downgrade by using TWRP but you have advisde that : "They can be flashed via local update in Settings --> System --> System Updates or TWRP recovery".
This sentence is mainly intended for zips that allow upgrade, since ultimately the application of downgrade zips is only guaranteed to work when flashed from OOS via local update (in the way this is the only scenario explicitly listed on OnePlus' forums when they are listed there).

I however do agree this could be better explained in the OP.
 

Jack Droid

Senior Member
Jul 15, 2014
201
30
This sentence is mainly intended for zips that allow upgrade, since ultimately the application of downgrade zips is only guaranteed to work when flashed from OOS via local update (in the way this is the only scenario explicitly listed on OnePlus' forums when they are listed there).

I however do agree this could be better explained in the OP.
Ok thanks !
 

MENINBLK

Senior Member
I received notice today that OOS LE2125_13.1.0.500(EX01) 1.91GB is available to download and install.
As much as I want to, I am waiting for someone else to pull the trigger and report back to us.
My wife's Oneplus 9 has the same update waiting also.
 

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