Hi!!! I was buy new phone LG Optimus P880 last week and i have problem. All time when i put my sim card the phone say this error: ''Unfortunately, the process com.android.phone has stopped.'' After all time that error come again and again and when come the error i lost signal. I was change my old sim card to new but nothing, i put my sim card to other android phones from my friends and works perfect, i put my friends sim card to my phone and work perfect too. What i can do? Why my phone not accept that sim card. I must change something in phone setting? can anyone to help me?