• open fastboot tool like minimal ADB tool or any other tools you have
  • use below commands to disable the OTA
  • ADB devices  (authorize from phones screen if prompted)

Block OTA updates for OPPO and Realme with adb shell

pm uninstall -k --user 0 com.oppo.ota

pm uninstall -k --user 0 com.oppo.otaui

pm uninstall -k --user 0 com.coloros.sauhelper

pm uninstall -k --user 0 com.coloros.sau


if any of the last 4 commands gives error ignore it and reboot the device ota will be blocked