Best answer by Max
Sorry to hear of the situation. Have you tried a hard factory reset and testing the device without restoring all the apps, it sounds like a software conflict that you are experiencing.
To hard reset the device, you simply have to power off the device in question. Once it is off please press and hold the Volume Up Key and the Power Button for about 30 seconds. The device will then boot into a new menu with only 3 visible options. The middle option is the Factory Reset that we are looking for. After the device finishes the reset it will come back to this particular menu - to leave the menu just tap reboot system now ( the last option in the list ).
Let me know how it goes afterwards.