Today I got Nokia 925 after waiting long time (T-Mobile USA). I cut my old SIM, installed, all worked great.
Then I setup phone, everything worked great.
Installed Windows update on phone. Phone rebooted and NO SIM... I thought maybe SIM card was damaged. Installed (using adapter) into old phone and all is well, working great.
Installing sim card into Nokia 925 - NO SIM.
Is it fixable or I should take it back to store?