Remember the three pillars of a successful rollback:
(released in 2019) has reached its performance ceiling, with ColorOS 11.1 (Android 11) being its final major update.
Select "From SD card" or "From phone storage" and locate the rollback zip file.
Remember that rolling back means you will be on an older security patch. To keep your device safe, avoid downloading APKs from untrusted sources and consider using a mobile security suite. Furthermore, disable "Auto-update overnight" in your system settings to prevent the phone from automatically re-installing the version you just escaped.
Go to Settings > About Phone to confirm you are now on the older ColorOS version.
Before picking a rollback package, it is essential to understand what each generational milestone offers: ColorOS Version Base Android Version Primary Pros Primary Cons Android 11 Highest app compatibility; Rich UI personalization.
[ColorOS Environment] -> [Download Rollback .zip] -> [Boot to Recovery] -> [Wipe Data] -> [Install from Storage]
If your device is experiencing extreme lag or bugs, follow these official recommendations before attempting an unauthorized rollback: Oppo A9 2020 phone update
The phone will boot to the rollback version of ColorOS. It will feel like a new phone. Skip the setup wizard initially; restore your backup from step 1 after you confirm that the rollback succeeded.
Remember the three pillars of a successful rollback:
(released in 2019) has reached its performance ceiling, with ColorOS 11.1 (Android 11) being its final major update.
Select "From SD card" or "From phone storage" and locate the rollback zip file. oppo a9 2020 rollback package exclusive
Remember that rolling back means you will be on an older security patch. To keep your device safe, avoid downloading APKs from untrusted sources and consider using a mobile security suite. Furthermore, disable "Auto-update overnight" in your system settings to prevent the phone from automatically re-installing the version you just escaped.
Go to Settings > About Phone to confirm you are now on the older ColorOS version. Remember the three pillars of a successful rollback:
Before picking a rollback package, it is essential to understand what each generational milestone offers: ColorOS Version Base Android Version Primary Pros Primary Cons Android 11 Highest app compatibility; Rich UI personalization.
[ColorOS Environment] -> [Download Rollback .zip] -> [Boot to Recovery] -> [Wipe Data] -> [Install from Storage] To keep your device safe, avoid downloading APKs
If your device is experiencing extreme lag or bugs, follow these official recommendations before attempting an unauthorized rollback: Oppo A9 2020 phone update
The phone will boot to the rollback version of ColorOS. It will feel like a new phone. Skip the setup wizard initially; restore your backup from step 1 after you confirm that the rollback succeeded.