Standard MDM removal often disables OTA updates to prevent the lock from re-triggering. Some advanced "Fix OTA" firmware files exist, but they are usually paid or restricted to private technician forums. Official & Safety Resources
Look for the special utility feature labeled or Block OTA Updates . oppo a79 5g cph2557 mdm ota remove firmwareby link
Go to Settings, enable Developer Options , and disable "Automatic System Updates" to prevent the MDM lock from returning. Risks and Considerations Standard MDM removal often disables OTA updates to
For a permanent solution using ADB commands, you can uninstall the core OTA packages. This is an advanced step recommended only for experienced users. enable Developer Options