Altering system partitions usually voids any remaining manufacturer warranty.

OPPO A79 5G, CPH2557, MDM, OTA, firmware, remove, solution, guide.

A: Yes, but only if you flash original signed firmware.

The OPPO A79 5G CPH2557 is a capable device, but it fights back against modifications. MDM removal is straightforward with a full firmware flash. OTA removal is trickier – most users are better off blocking update servers via firewall rather than deep system surgery.