: While a factory reset using codes like *#8778# can clear data, it typically will not remove an MDM lock as it is embedded in the system partition.
MDM is a security layer used by organizations or financing companies to remotely manage device configurations, enforce password policies, and track the device. On an OPPO A79 5G, this can prevent factory resets and block certain system updates. miniOrange Methods for MDM Removal oppo a79 5g cph2557 mdm ota remove firmwareby hot