'No network connection' on my Samsung S7 Edge

[AC Question]

I recently updated my Samsung S7 Edge software when the update popped up. Since then my phone doesn't get the T-mobile signals. It says 'No network connection' with the crossed out circle. I'm not even able to search for networks under 'Network Operators'. I either says 'Error while searching for networks' or 'Unable to connect, try again later'. I did a factory reset also but that didn't help. Used the same sim on a different phone and it works fine.

 

[Rukbat]

Bring the phone into a T-Mobile store. They should be able to reflash the update without changing anything in the phone (other than the problem).