Downgrading to android 9 - is it possible? - OnePlus 6 Questions & Answers

I've got the android 10 beta update, but i need to downgrade back to 9, because an app, which i use for work isn't working under the new system. I've downloaded, the oficial android 9 build from oneplus's site, and was about to use the local upgrade function, but it shows this message.
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. I'd like to avoid to install custom recovery and custom rom, if possible.
Thanks!

So it shows this

D_vid97 said:
So it shows this
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the fastest way back with data loss is to msm the phone back to 9.

Go in the oneplus community beta thread and you will find the correct rom to downgrade.

you can but i twill wiped all of ur data. go to the oxygenos android q beta's thread on oneplus community. there's an instruction there.

It is basically a downgrade package which is installed using local upgrade.

Doesnt Format everything on TWRP and then the PIE works?
Whats the difficulty?

Related

UPGRADE TABLET from 4.2.2 to any - Installation aborted when i try to install any image

Hey Guys,
Iam new to Upgrade any Android Devices. I had became a Tablet which i want to use. This tablet is on ver 4.2.2 which is useless for the newest Apps or my App which i want to Program. I know i can program an app which works on it but i want do more with it. So i need a Android vers 6/7/8. I try to rooted it but it was already. Then i search for a Image which i can use. And then i try to install it with "apply update form ADB" and then comes this error. I try also apply from external storage.
My Tablet is from a No-Name company so i try to find any which i can use. I try to use LineageOS but it didnt work. Everytime when i try to use an Image it comes Installation aborted.
My Tablet Name : FX2 PAD10 AW
in the Recovery stand : SDK: MID-A20-Android4.2-V2.Opatch1
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So My Questions are:
1. How i know which image can i use?
2. Why comes "Installation aborted"?
And Maybe will be helpful if any can write a short tutorial or post a Good video tutorial.

Unable to update 4a 5g to Android 12

Hi All,
Hope this is the right forum...
I have a Pixel 4a (5G). I've tried flashing Android 12 about 10 different ways, but no matter what I do settings shows Android 11. I've tried using the dev flash tools website ( https://flash.android.com/preview/dp1.1) , I've tried the manual download / install from https://developer.android.com/about/versions/12/download .... No matter what, I'm still on Android 11. Am I missing something obvious?
Thanks
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All you have to do is to download the device factory image for bramble from HERE and flash it using flash-all.bat, having your device in fastbtoot mode.
If you want to retain your user data, remove the "-w" from the bat script on the line you see the "update instruction".
I did that, just using flash-all. All data was lost, but still says Android 11 (S). I'll try it again with the -w....
S is developer preview of Android 12 but it's still marked as 11 on some places. So if it was that what made you doubt, forget it, it's normal.
OH. LOL.. Thanks. Well, that explains it!

Fingerprint hardware not available

Hi all, after doing a full factory reset , and not copying backup from another device, when it came to security and adding a fingerprint it says "fingerprint hardware not available" is there a fix for this issue? I'm on Android 11, Legion OS version 12.5.320ST Any help would be appreciated. Many thanks
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DavyC552000 said:
Hi all, after doing a full factory reset , and not copying backup from another device, when it came to security and adding a fingerprint it says "fingerprint hardware not available" is there a fix for this issue? I'm on Android 11, Legion OS version 12.5.320ST Any help would be appreciated. Many thanksView attachment 5440955
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I fixed this be going back to A10. But after flashed back A10 it's not worked straight away had to wait couple days and it went back to normal and fingerprint start working again.
But now I'm using new A11 update and for now fingerprint working I will need more time to test it and see if it still works after some time.
up

Android 11 beta vivo nex 3s rollback package not working

I recently installed the android 11 beta for the vivo Nex 3s. I didn't like it so I wanted to go back to android 10 but weirdly ALL rollback links, don't work!! What do i do now ?? The links to update to android 11 work, but not to go back. I don't get it.. now I'm stuck with this unfinished version. And the official android 11 developer website, keeps redirecting me to some empty page so i can't even accès it.
Re-flash Stock ROM.
xXx yYy said:
Re-flash Stock ROM.
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Won't that result in a bootloop?
xXx yYy said:
Re-flash Stock ROM
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Never
xXx yYy said:
Never
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How can u be so sure?
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xXx yYy said:
got stuck in bootloop. when trying to manually updating it.
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Question ROG Phone 5 Android 11 System Update failed

Hi all, just wandering if you have any suggestion to update my phones firmware. I tried to download the 2 firmware from website (https://rog.asus.com/phones/rog-phone-5-model/helpdesk_bios/) but both seem to dont work.
Current version: see image
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What is your current build? Try updating incrementally from your current if jumpin many versions.
Andrologic said:
What is your current build? Try updating incrementally from your current if jumpin many versions.
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Its ww_18. Yeah, thats what im trying to do. Im trying to find the next update on this but cant seem to find the next one. Any idea where can I find the consecutive updates?
Boot to twrp recovery via pc fastboot command or if you have it flashed and flash the latest rom
Andrologic said:
What is your current build? Try updating incrementally from your current if jumpin many versions.
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Will flashing the latest Android 13 image and just restoring to factory settings work? I currently have the last version of Android 11.

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