So I installed that apk and restarted my phone, but my "System update" screen still looks the same. I'm not sure what you mean by your second line - what is an activation launcher?
Yes ! you can downgrade to any version as deemed fitcan we downgrade to oxygen os 11.0.2.2?. my current version is 11.0.11.11 EB13BA
It's rather odd that OnePlus has not released proper flashing instructions on their support website. (At least they're releasing zips, which in turn allow users to extract stock boot.img so that they can patch it to root their device if they wish).
Out of curiosity, could you try sideloading this APK (you may need to launch the app via an activity launcher) to see if it would detect and perform flash of a zip present at the root of device internal storage?
Ehm the lack of change in system update was expected, as I mentioned previously an activity launcher such as https://play.google.com/store/apps/details?id=de.szalkowski.activitylauncher&hl=fr&gl=US may be needed. I believe the relevant activity is com.oneplus.localupdate.ui.home.HomeActivity
This tool makes flashing payload.bin/full OTA zip on unlocked devices easier.
Github: Fastboot Enhance
Can you please share a link?
As per the filename you haven't used the correct zip: you need to use one of the zips listed in the Downgrade zips section of the OP.NEED HELP!
i am unable to downgrade my Nord CE. i want to rollback to android 12 from android 13, but now i am not able to do that.
i even used the OPLocalUpdate_For_Android13.apk but it didn't work and even i tried from the settings app > update > local install but all my attempts are showing some errors.
can you please help??
i have attached the screenshots
@Some_Random_Username
Ehm the lack of change in system update was expected, as I mentioned previously an activity launcher such as https://play.google.com/store/apps/details?id=de.szalkowski.activitylauncher&hl=fr&gl=US may be needed. I believe the relevant activity is com.oneplus.localupdate.ui.home.HomeActivityBtw. I installed this apk (didn't sideloaded it), but there wasn't a visible change in system update. Thanks for this try anyways!