How to reset the DTR to factory default through the keyboard without using CPS.
The procedure is in the DTR Flash Users Guide, which you can find here.
Here is video I made on doing the factory reset.
There is a simpler method, (as I mentioned, is in the DTR Flash User’s guide):
[li]Turn the radio on[/li]nr[li]Hold the Home key and press the PTT button three times[/li]nr[li]Release all keys[/li]nr[li]Press the Down, Up and Right Software keys sequentially[/li]nr[li]Hold the Home key and press the PTT button three times again.[/li]nr[li]You should see the radio restart[/li][/ul]