Question how do you downgrade to A11? - OnePlus 9 Pro

the info is very confusing and im looking for january 2022 patch, currently on android 12 wanting to go down to 11. my model is LE 2125-11
every guide shows another model and im worried about bricking for installing the wrong model version. msm is also unclear to me because tutorials show me it amrks the phone as indian, which i think isnt the case.
there is a lot of info which doesnt show how to downgrade and i am really confused, please i would appreciate an explanation of how you are supposed to downgrade A12 last patch (january 2022) to A11. thanks

https://forum.xda-developers.com/t/oneplus-9-pro-rom-ota-oxygen-os-repo-of-oxygen-os -builds.4254587/
Its stickied on every Oneplus XDA section and will help yu.
They even release it with batch files / scripts to perform the whole wipe on both slots for you. It will go back to factory state. All data will be gone and any root will be undone.
There's also MSMtoolkit but I'm bit sure its still A11, so the link above if your safest bet

glowyemmanuel said:
the info is very confusing and im looking for january 2022 patch, currently on android 12 wanting to go down to 11. my model is LE 2125-11
every guide shows another model and im worried about bricking for installing the wrong model version. msm is also unclear to me because tutorials show me it amrks the phone as indian, which i think isnt the case.
there is a lot of info which doesnt show how to downgrade and i am really confused, please i would appreciate an explanation of how you are supposed to downgrade A12 last patch (january 2022) to A11. thanks
Click to expand...
Click to collapse
Just install the downgrade package for your desired region irrespective of what version of OP9 pro you have. Once restarted after downgrade, the system will show OTA for 11.2.10.10. If it shows C44, manually update to 11.2.10.10..... You are done.
Downgrade will wipe your internal storage.
MSM is a second option to downgrade.

MSM tool is the easiest and safest way

Did you try this?
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Related

Installing Android 10/11 on EAW G8S Thinq

Hello,
I have a Brazilian G8s currently running February security patches on ver. v10b-BRA.
Unfortunately LG Brazil is ignoring us and has not even given a estimated date for the release of Android 10 on the phone, so I came to ask for your help hahahah
The only method I have seen that seems like it would work is to install a leaked Beta using "activity launcher" as described in this forum post but I would like to use a more stable release of A10 if possible.
I have rooted an Android phone a few years ago, so if that is required I believe I could do it, it would just be a lot easier to have some kind of guide to follow, as I have found a lack of resources regarding this kind of firmware flash on the G8s...
Sorry for the long post and thanks in advance to anyone who is able to help me out! I just want native dark mode and gesture navigation hahahah
https://forum.xda-developers.com/lg-g8/how-to/rooting-g8s-guide-t4044193 there is the rooting guide, it works flawlessly on EU version of G8S. I am not sure which firmware and its magisk_patched.img should you use, maybe some from beta? Hopefully they will later deliver Android 11 in Brazil... https://www.androidauthority.com/android-11-update-tracker-1155652/
kuchynek said:
https://forum.xda-developers.com/lg-g8/how-to/rooting-g8s-guide-t4044193 there is the rooting guide, it works flawlessly on EU version of G8S. I am not sure which firmware and its magisk_patched.img should you use, maybe some from beta? Hopefully they will later deliver Android 11 in Brazil... https://www.androidauthority.com/android-11-update-tracker-1155652/
Click to expand...
Click to collapse
I am not sure if this works on BRA G8s, even if it is an EAW model.
Tried it anyway just now but the adb reboot bootloader line on cmd says there is no device found, even with the phone with developer mode etc. turned on...
Thanks for your help anyway, I will try unlocking the bootloader again later and update the post if it works!

Question Normal to be stuck on Nov 2021?

Morning all, I went through the pages but couldn't find anything that relates to this. Bought the 9pro yesterday (US version, unlocked, using a TMobile sim)
Phone can not find an update, it's still sitting on November 2021 patch with Android11. Is this normal? I know the US hasn't been getting much love lately from OP. I'm also aware of updating via sideload but if this lack of update is known to others as well, I'd rather wait it out until OTA arrives. Anyone have advice?
Same for Europe. BUT - be happy with being "stuck" on Android 11. OOS12 is still way too buggy, more of a beta version.
davey_wavey said:
Morning all, I went through the pages but couldn't find anything that relates to this. Bought the 9pro yesterday (US version, unlocked, using a TMobile sim)
Phone can not find an update, it's still sitting on November 2021 patch with Android11. Is this normal? I know the US hasn't been getting much love lately from OP. I'm also aware of updating via sideload but if this lack of update is known to others as well, I'd rather wait it out until OTA arrives. Anyone have advice?
Click to expand...
Click to collapse
If you want to try out Android 12, you can proceed through the Oxygen Updater app. The last official OOS12 update I was on has been the C44 EU (C46 is out, but not for EU yet), and I decided to give a try to custom ROMs (Jaguar, on Android 11, and crDroid 8, on Android 12).
I'm currently running crDroid 8 as my daily driver, but OOS12 C44 EU was great too (the first OOS12 updates were quite a mess, though).
davey_wavey said:
Morning all, I went through the pages but couldn't find anything that relates to this. Bought the 9pro yesterday (US version, unlocked, using a TMobile sim)
Phone can not find an update, it's still sitting on November 2021 patch with Android11. Is this normal? I know the US hasn't been getting much love lately from OP. I'm also aware of updating via sideload but if this lack of update is known to others as well, I'd rather wait it out until OTA arrives. Anyone have advice?
Click to expand...
Click to collapse
I bought the unlocked global verson from Best Buy last week and same thing, no update, still on November security release.
Jaxom84 said:
If you want to try out Android 12, you can proceed through the Oxygen Updater app. The last official OOS12 update I was on has been the C44 EU (C46 is out, but not for EU yet), and I decided to give a try to custom ROMs (Jaguar, on Android 11, and crDroid 8, on Android 12).
I'm currently running crDroid 8 as my daily driver, but OOS12 C44 EU was great too (the first OOS12 updates were quite a mess, though).
Click to expand...
Click to collapse
Thanks for the tip on Oxygen Updater. I pushed my device to v12 C44. Very easy!
percentevo said:
Thanks for the tip on Oxygen Updater. I pushed my device to v12 C44. Very easy!
Click to expand...
Click to collapse
Do you prefer a12 to a11 on the 9pro? I'm hearing horror stories, almost afraid to update it. What's your opinion on it
davey_wavey said:
Do you prefer a12 to a11 on the 9pro? I'm hearing horror stories, almost afraid to update it. What's your opinion on it
Click to expand...
Click to collapse
Horror stories? Over exaggerated for the biggest part and mostly caused by the disappointment that originated after OnePlus and OPPO announced a closer cooperation and unified OS.
davey_wavey said:
Do you prefer a12 to a11 on the 9pro? I'm hearing horror stories, almost afraid to update it. What's your opinion on it
Click to expand...
Click to collapse
I saw this yesterday but figured I should at least give it a little time. Two small issues so far. One, it optimized my alarm clock app so I woke up late this morning. Second, the font and spacing seems a bit bigger on everything and I haven't found how to get it smaller yet. I have font set to small. Wifi, Bluetooth, 4 and 5g all seems to be working fine. No issues with lagging, screen, etc. Let me know if you have anything specific you want me to check.
I paid $530 for my 9pro brand new (us version & unlocked). I'm stuck on Nov 2021, I don't see anything super promising regarding A12 or OOS12, so I guess I'll stay on A11 and treat this phone like a mid-ranger. If I get a OTA, yay.... If not, oh well it was essentially 500 bucks for an 888 and 12gb of Ram
Jaxom84 said:
If you want to try out Android 12, you can proceed through the Oxygen Updater app. The last official OOS12 update I was on has been the C44 EU (C46 is out, but not for EU yet), and I decided to give a try to custom ROMs (Jaguar, on Android 11, and crDroid 8, on Android 12).
I'm currently running crDroid 8 as my daily driver, but OOS12 C44 EU was great too (the first OOS12 updates were quite a mess, though).
Click to expand...
Click to collapse
Do you happen to know if I root my 9 pro, whether or not I can still get OTA updates? Or, if maybe i could still use Oxygen Updater to do so? I dont mind the stock OS but id love to get Titanium Backup going and a few other small things.
NEVERMIND - Found on the Oxygen Updater site. Still works after root, just a slightly different process.
percentevo said:
Do you happen to know if I root my 9 pro, whether or not I can still get OTA updates? Or, if maybe i could still use Oxygen Updater to do so? I dont mind the stock OS but id love to get Titanium Backup going and a few other small things.
Click to expand...
Click to collapse
You'll have to check personally for that, as I'm unsure about how Titanium backup works. But I know you can still use Magisk and keep your device rooted even through OTA updates (the process is described step by step in the associated post on the OnePlus 9 Pro forum, so you should find it quite easily, but be careful, as you have to do a few things before rebooting to apply the OTA update.).

Question Downgrade?

Hello, am new to pixel device... My previous device was Xiaomi Mi 11 , my device carne with A13 !my question is there any way to downgrade to A12 I want to flash derfest A12 my fav ROM .. thx in advance
Hello, welcome to Pixel land.
First, in order to flash a factory image, you'd have to unlock your bootloader. If you don't know already, click the yellow How To Guide quick filter at the top of the list of threads in this section and you'll find 3-4 threads that tell how. I also have a link in my signature below - you can use the link for the Pixel 7 Pro - the instructions to unlock the bootloader are the same, and the OP of my Pixel 7 Pro thread is much better organized than my one for the Pixel 6 Pro, in my opinion.
After that, the only way you can downgrade (and have everything working, and not brick your phone is to use one of the two Android 12 Developer Support images for Pixel. There's an Android 12.0 build from February and an Android 12.1 build from July. They will never receive updates, however.
You can always manually flash a Pixel 6 Pro stable Factory Image to re-upgrade at a later date, or use the Official Google Android Flash Tool (OEM Unlocking needs to be toggled on - you may not have to manually unlock the bootloader - the "site" will do that on its own) to re-upgrade.
Any of the stable Android 12 builds at that factory image link should not be flashed because the Android 13 bootloader cannot be downgraded to an Android 12 bootloader, and if you flash everything from 12 Stable but the bootloader, it'll appear to work at first, but it truly won't work correctly - it will not be useable.
If you unlock the bootloader, you should also make sure the Android 13 bootloader is flashed to your inactive slot as well, to avoid the possibility of accidentally bricking your new phone.
Thanks for the fast reply sir much appreciated .. I got the idea ... My device stock unlocked and rooted .. now my question is if I flashed the July A12.1 developer ... Can I flash custom ROM based on A12.1 like derpfest etc ... Sorry I mixed up things here little harder than xiaomi
Antidote03 said:
Thanks for the fast reply sir much appreciated .. I got the idea ... My device stock unlocked and rooted .. now my question is if I flashed the July A12.1 developer ... Can I flash custom ROM based on A12.1 like derpfest etc ... Sorry I mixed up things here little harder than xiaomi
Click to expand...
Click to collapse
You're welcome. I don't fool around with custom ROMs except on my 6-year-old or more phones, so I can't answer that question. Part of the best things about having Pixels is the software features Google starts off exclusively on the Pixel stock ROMs.

OP 7T downgrade from stable Android 12 to Android 11 [EU version]?

Hi guys!
Just today, I updated my 7T [EU model] to the new, stable version of OxygenOS running on Android 12. However, I quickly realized that I much more prefer the old stable OxygenOS 11. Is there a way to downgrade to that version? I've tried scouting online, however, I only found downgrade links to Indian models.
Thanks very much!
Hi my friend!
Just check the official Oneplus forum (oneplus.net). There is a post OxygenOS 12 MP2 for Oneplus 7T/7TPRO that is pinned. There is a download link for all versions. Note that your cell phone will be erased!
Link: https://community.oneplus.com/thread?id=1181216999612088323&fromCircle=true
Thanks a lot, worked 100%
I just upgraded from 11 to 12, and i loose my connection every hour. Only thing that can bring back my signal is switch the phone into flightmode and back.
So will revert back to 11 as you did.
One questoin did the roll back wipe the phone or was apps and other settings still on the phone?
torben5247 said:
I just upgraded from 11 to 12, and i loose my connection every hour. Only thing that can bring back my signal is switch the phone into flightmode and back.
So will revert back to 11 as you did.
One questoin did the roll back wipe the phone or was apps and other settings still on the phone?
Click to expand...
Click to collapse
This rollback method will erase all the contents of the phone, please be sure to backup first.
POT_Tomy said:
This rollback method will erase all the contents of the phone, please be sure to backup first.
Click to expand...
Click to collapse
Is it possible to keep root through the rollback if I patch the boot image with Magisk before rebooting?
Edit: Just downgraded and had to root again after the downgrade (patched boot.img)
I am in the same situation. Upgraded to Android 12 and I'm having so many problems. I too am now downgrading. And actually moving away from OnePlus. Too many problems. Gonna try Carl's Nothing phone.
Hey there, Is it the original thread on offi OP site is not available anymore.
Do You guys remember the steps and what was needed to do the downgrade by chance ?
Help appreciated.
Iry said:
Hey there, Is it the original thread on offi OP site is not available anymore.
Do You guys remember the steps and what was needed to do the downgrade by chance ?
Help appreciated.
Click to expand...
Click to collapse
How to Downgrade OnePlus 7/7T Series from OxygenOS 12.1 to OxygenOS 11
Follow the method to Downgrade OnePlus 7/7T Series from OxygenOS 12.1 to OxygenOS 11 manually.
www.theupdatebox.com
HueyT said:
How to Downgrade OnePlus 7/7T Series from OxygenOS 12.1 to OxygenOS 11
Follow the method to Downgrade OnePlus 7/7T Series from OxygenOS 12.1 to OxygenOS 11 manually.
www.theupdatebox.com
Click to expand...
Click to collapse
Hey,
Thanks for the help.
I also found a working solution on OP site as well.
If someone is looking for a solution, currently this thread is alive https://community.oneplus.com/thread/1181216999612088323
Thanks & GL.

Question covert from coloros to oxygenos

seeking to flash global rom to a op11 coloros device, can somebody provide some detailed instruction? thanks..
i too am waiting for the tutorials from some folks. but last i heard, even with Oneplus 10 Pro, it has been difficult to convert it. Some say its impossible, since Oppo is being very difficult about it.
caloysilva said:
i too am waiting for the tutorials from some folks. but last i heard, even with Oneplus 10 Pro, it has been difficult to convert it. Some say its impossible, since Oppo is being very difficult about it.
Click to expand...
Click to collapse
Convert ColorOS to OxygenOS (OFP & OTA | Bootloader reLock & PIN working)
Update: 18th March 2023 **** Give Up **** I got so fedup and decided to goto HK and get my OnePlus 11, a real CPH2449 GLO. Paid and waiting to collect. I will not be update and maintaining this post from now on. Why give up? Minor issue like...
forum.xda-developers.com
oprocks said:
seeking to flash global rom to a op11 coloros device, can somebody provide some detailed instruction? thanks..
Click to expand...
Click to collapse
Convert ColorOS to OxygenOS (OFP & OTA | Bootloader reLock & PIN working)
Update: 18th March 2023 **** Give Up **** I got so fedup and decided to goto HK and get my OnePlus 11, a real CPH2449 GLO. Paid and waiting to collect. I will not be update and maintaining this post from now on. Why give up? Minor issue like...
forum.xda-developers.com

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