No service after firmware upgrade
i have a lenovo p780. bought it from Moldova 3 months ago, it worked perfectly fine until last night. i got a notification that there are updates for my phone, updating to android kitkat. i downloaded and installed it. when phone turned on, the phone detected sim cards but it says that theres is no service. this morning i went to system updated menu and there was another update, this time with some bug fixes. downloaded and installed it again. now when i turn on my phone, it detects sim cards, but when it wants to look for network, , i get this: unfortunately the process com.android.phone has stopped.
i tried putting a piece of paper so theres some more pressue on sim card, so it touches the contacts better. didnt work. tried to do factory reset. didnt work.
im in another country now, cant bring it anywhere to get it fixed and i dont really think it is a hardware problem.
please help. im desperate. thanks in advance