hello to all , for the last couple of days i have problem with my device (8.3 Jb) my device is respring itself from time to time, with simple action like tring to open camera and other functions. this respring also happen sometimes during a phone call and if the person on the other side , stay on the line, after the respring to call continue . after respring i cant access to the keyboard when sms or whatsapp wont show the keyboard, and i have to shut down the device completely. i tried to remove the most latest tweaks i downloaded from cydia but the problem remain. can anyone please advise ?