Here how to Disable OTA Oppo A5s (CPH 1919) CPU MTK and All Oppo Smartphone jus One click! this method support All Oppo Models
After Downgrade or after Unlock Network have to Disable OTA Software update
Why need to Disable OTA?
Disable OTA on smartphones means that:
pause the “Software update” tap, cannot get an updated software by anyway.
Oppo A5s after downgrade Low version and don’t need Update by OTA.
Need to be enabled USB debugging on Device
Please install Driver from this folder if your PC not have before