Help with Treo 700w please

I have a Treo 700w from Verizon. I got it awhile back and I didn't get insurance and 1 day the phone went into flight mode and wouldn't come on. everything else works fine.. but it kinda sucks having a phone that doesn't make calls. Well i tried everything to fix it like doing a hard reset, turning off and on bluetooth, taking out the battery and putting it back on, doing soft resets, holding the power button, clicking the button the out of flight mode button, bringing it to a verizon technician, and even installing WM 6.1 on it hoping it would fix the problem, but no matter what i do It's still stuck in flight mode!! if anyone has some ideas it would be greatly appreciated. Thanks