Bad LG
2.3.5 21A, Hong Kong,
average 2 ghost call everyday(Total 10-15 calls/day)
Tried:
Replace a SIM card from network provider
Root or not root
remove all "Auto-kill" apps
When use the phone call a number but it say: "... re-organize ... network...", the P920 is in "GHOST CALL MODE". No incoming call and message.
I tried use a home tel line to call it in "Ghost Call Mode", then shutdown the phone, the home tel can still hear a normal ringtone. Once I remove the battery, the home tel will go to busy tone.