I just found this site and WOW! Now for my newbie question... I use an XTS2500 at work (800mhz,P25,trunking) and it started doing something odd recently where it flashes the 'self test' message then the lower half of the display comes on BUT the channel info does not appear. It stays this way for 5 seconds then goes off and 1 second later repeats - I left it for ten minutes like this and nothing. The only thing I can add is that the battery fits poorly and the unit was losing power as I would carry it on my belt by the clip. (I did not realize this originally but now know it) Any help appreciated.