No SIM card - No service

i am using nexus 5 on t-mobile network on stock lollipop. Now my phone does not recognize my SIM card, i think there is radio issue but dont know the solution. I tried so many options but there is no success. So far i did following things

Restarted.
APN checked an different APN settings.
Different T-mobile SIM.
different carrier SIM.
Same SIM in different phone and it works.
Opened back cover and checked antena but looks fine.
Finally reset to factory default with no luck.

Can anyone please suggest me any fix, i will greatly appreciate it.

Thanks.