I have an LG C800. I have been using it for a while now. Few weeks back, a SIM card with an error icon on it appeared at the top of the screen. Since then, I can’t make/receive calls. I can’t send and receive text messages and I can’t connect to the internet with my phone.
When I try to make a call, I get the “Not Registered on Network” message. When the phone is locked (pressing the power button gently), “No Sim Card” is displayed on the screen.
It’s a T-mobile branded phone, but its unlocked. If I insert SIM card from other providers, I would be able to tell which provider it is from the phone.
I have thought about rooting the phone, but I don’t know if it would solve the problem.
Can anyone help me with this problem?