My Sony Tablet Z had no signal on LTE/3G. so I've sent my Sony Tablet Z to Sony repair centre 15 days ago, and they returned my device 7 days ago. They said they fully updated my deviece and it was working perfect. Then I tired to put a Sim card in, the device showed find sim card,then restart, after that , still no signal. Therefore I decided to send it back to Sony repair centre again, and I highlight "please check the LTE/3G thanks!". I received a letter from Sony today,it's a receipt says they got my tablet. But in the "falut description" section is empty as previous time. So I think they won't repair my tablet this time as well. What can I do?
(sorry,my english is not good, I am not a natural speaker)
Thanks for help!
