Just tried my HP1, test mode works fine. This was my post linked in post #2:
I think the summer heat has cooked my touch screen on my home patrol 2 , it turns on and scans fine but the screen will not respond to touch correctly ( if I hit menu, the channel line locks ) is it worth fixing ??????
forums.radioreference.com
Follow the steps carefully... and
be careful what you are doing in the test mode !
(1) Turn your scanner completely off. Be sure you are using a fully charged set of batteries.
(2) To power up the scanner in the test mode, hold down both the volume up (+) button and the power on button simultaneously until you just see the boot up splash screen. Immediately release those 2 buttons and quickly press and hold down the volume down (-) button until you see the "Test Mode" screen, then release the volume down button.
(3) To exit the test mode, just shut down the scanner as you normally would.