Instead of chasing a "full OTA remove firmware" ghost:
Use an updated auth-bypass tool or authorized software like UnlockTool that handles DA internally.
Install the latest Oppo/MediaTek (MTK) USB Drivers .
Flashing the wrong scatter file, interrupting the flash, or corrupting the preloader.
Monitor the progress bar; the tool will write the MDM-cleared partitions to the storage chip.
The MDM OTA remove firmware issue on the Oppo A79 5G (CPH2557) can be caused by several factors, including:
Instead of chasing a "full OTA remove firmware" ghost:
Use an updated auth-bypass tool or authorized software like UnlockTool that handles DA internally.
Install the latest Oppo/MediaTek (MTK) USB Drivers .
Flashing the wrong scatter file, interrupting the flash, or corrupting the preloader.
Monitor the progress bar; the tool will write the MDM-cleared partitions to the storage chip.
The MDM OTA remove firmware issue on the Oppo A79 5G (CPH2557) can be caused by several factors, including: