Use this method if you still have access to the admin dashboard.
If your router is overheating during or after a reset, follow these troubleshooting steps from the OPPO Global Community : hard reset oppo 5g cpe t2 hot
If the standard button press doesn't work, try this "Master Reset" sequence from HardReset.info : Remove the power cord from the router. Use this method if you still have access
while simultaneously plugging the power cord back in. plug the power cord back in.
: Hold for 5 to 10 seconds until the indicator lights on the front of the router change or flash.
: If it feels too hot to touch, unplug it immediately and let it sit for at least 15 minutes before attempting the reset again.
While still holding the Reset Key, plug the power cord back in.