: A high-quality USB-C data cable to maintain stable connection during the partition format. Step-by-Step MDM and OTA Removal Procedure 1. Prepare the Device Connection Power off the Oppo A79 5G completely. Open your chosen flashing tool on the PC. Select the MediaTek / MTK tab inside the tool's interface. 2. Bypass Boot Authorization (Auth) Select the model from the device dropdown list. Click the Bypass Auth or Disable MDM execution button.