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Solved
sim card
Just purchased a Samsung Galaxy s21, unlocked to any carrier. When it asks me to read sim card it's saying theres no sim card installed, which it is. Any suggestions?
Try contacting qlink wireless to see if it's something on their end.
Could it be a problem with the SIM card holder in the phone? Yes it could. I do not think it is a physical problem, however, because when I restart the phone, the SIM is recognized just fine. It also tended to lose connection to T-Mobile when I would drive to a new location. My guess is that the problem is either some kind of strange glitch in the phone with the SIM card reading circuitry or that T-Mobile is not connecting properly to the phone since it is unlocked. I know an unlocked phone should work fine on any compatible network, but I saw a comment where T-Mobile told someone that an unlocked phone may not be compatable on T-Mobile’s network. I know my phone is unlocked because it does not start up with the T-Mobile logo. It is a Samsung Galaxy S21 SM-G991U1.
