LgT500 usim removed handset will restart
 

i have this lg t500 it work ok with simcard for few minutes the shows this " usim removed handset will restart" sim tracks seems to be ok.i also tried to flashing but problem remain anyway to solve the problem?

t500 insert sim card solution pls help me is that where is ic bc all sim sard ways are ok any how pls help me for solve it thanks in advance