, you're likely facing limitations on what apps you can install or how you can use the device. MDM locks are common on enterprise-owned or financed phones.
: *#899# (Used to check hardware status and software versions). Risks and Considerations oppo a79 5g cph2557 mdm ota remove firmwareby hot
: There are services that offer to perform the unlock remotely via USB. Step-by-Step Diagnostic Check , you're likely facing limitations on what apps