A week ago, my sister gave me her Samsung Galaxy Ace S5830I. She said that she could not call or text anyone and could not receive anything. I looked around on her phone and on the Internet to find the root of the problem. I found that the phone had no IMEI number. I typed
*#06# in the keypad of the phone and a box appeared. It had the words "IMEI" but there was no number under it. When I go to
Settings > About phone > Status, this is what it says:
Network: T-mobile UK Signal strength: -83 dBm 14 asu Mobile Network type: UMTS Service state: Out of service Roaming: Not roaming IMEI: Unknown IMEI SV: 01
I hardly know anything about Android, so could you please explain everything simply?