Nokia 701 power off with sim without sim working fine

i have nokia 701 it power of when put a sim and power on it starts and then go off, without sim working fine. i try to flash it but problem not solved with flashing , where is the problem

via limite item feed 15-GSM http://forum.gsmhosting.com/vbb/f148/nokia-701-power-off-sim-without-sim-working-fine-1726799/