who can help me ? my 5s keep reach and no signal.

[sunzhaolei1987]

I am chinese.  I bought iphone 5s A1533 last month.  The 5s worked as normal operation yesterday.

but after i recovey 5S by itunes. there is no signal with my phone and the phone keep reasch the

signal all the time.

I change  other company's SIM card that can be find the signal.

SO what's wrong with my phone, it's problem with my SIM card or the Verzon or the apple??

hope you answer online..

sorry to my english is no enough good to explan more details.

[sunzhaolei1987]

i lived in china. My SIM card is China Telecom