hey guys whats up..

my 7250 is really having problems, its vibrator is not working, it was perfectly fine until i came into this area with 850 MHz band and 1900 MHz. The phone operates perfectly but like i said the vibrator does not work, u can hear it trying to vibrate but it doesn't shake. if u suggest for me to flash it, can u please tell me what is flashing and how is it done? if u know n e other reason please help me out i would really appreciate it. Thank you in advance..

kman