I have an ipaq 6315 (1.11.10 eng rom, XIP 4.20.14350.4) unlocked, and am currently using it on Rogers in Canada. The phone has few problems, but there is one MAJOR problem.

The phone keeps losing its phone capability, unable to do anything phone related. The green LED light that usually blinks indicating the phone is working just stops blinking, and there's no way to turn it back on unless I shut the phone off, use the stylus to 'lock' the phone from the back, then unlock it again and turn it on and let it load up.

It's like it keeps going in flight mode, but it's not in flight mode, because when the led stops blinking, and I tap the gsm bar, it asks if I want to turn it to flight mode. The phone completely locks up, and it happens very very frequently (4-5 times a day). I miss important calls when I don't know if it has locked up, and it's getting really frustrating. I did a crazy amount of research for this problem and have come up with nothing as a fix.

Anybody know of this problem? Any fixes? Any help will be majorly appreciated.