First my cells app plus sytem ui get not responding so i restarted my cell for more than 20 times and it not stop so i restored factory my cell and after i updated my software, my cell imei number got invalid. Does it can be fix?
I found a guide that you can try to hopefully fix your phone's IMEI issues. It involves rooting your phone and other technical stuff. Please remember that root-related actions are your sole responsibility. Proceed at your own risk.
Click here to view the guide.