This app reads all info about your device, Sim its network and battery status. 1) Sim Card: a) Serial Number. B) State. 1. Absent. 2. Network Locked. 3. Pin Required. 4. PUK Required. 5. Ready. 6. Unknown. 7. Not Ready. 8. Error, permanently disabled. 9. Error, present but faulty. 10. Present but not usable due to carrier restrictions. C) Country ISO. D) Operator. E) IMSI.