Hi, I recently replaced the lcd/digitizer display on a Sony Xperia Z for a customer of mine and everything seemed to go fine as usual until I turned the phone on after the repair was done. The phone was showing NO SIM/NO SERVICE. I checked the sim card tray and tried taking it out a few times and even checked to see if it was in the correct way and it was. I opened the up the back of the phone again to check if I'd maybe damaged the antenna wire or antenna board but all looked good and connected correctly. I'm a bit stuck on this one so if anyone has had this problem before or any other ideas they would be very appreciated. Thanks