: Power off the phone and remove the SIM tray. Ensure the SIM card is properly aligned with the gold contacts facing the correct way.
Then he remembered.
But somewhere in Kansas City, a Samsung Galaxy J7—identical to his, same model, same carrier—booted up with a fresh SIM. And on its screen, a message appeared: invalid sim card samsung galaxy j7 us cellular
More typing. Longer silence.
“It’s not dead. It’s invalid . Like my opinion doesn’t count.” : Power off the phone and remove the SIM tray
If you see one of these listed for sale, run. Unless, of course, you are looking for a very expensive paperweight that occasionally taunts you with error messages. In that case, it’s a five-star purchase.
“I live in La Crosse. Wisconsin.”
Invalid SIM. Valid revenge.
Physical connection issues are the most common cause of "Invalid SIM" errors. But somewhere in Kansas City, a Samsung Galaxy
: A simple reboot can often fix temporary software bugs. Press and hold Power + Volume Down for 7 seconds to force a restart.
Registered. That meant belonging. That meant the tower knew his name.