my galaxy note 8.0 mobile service turns on and off continously by itself

[AC Question]

my mobile service turns on and off by itself and as that happens the screen blinks several times..
it happens like 10 times a minute....
i neeeeeed heeelp.....

 

[B. Diddy]

Try booting into Recovery Mode and wiping the cache partition, which won't erase any personal data. Follow the steps in this video, but instead of selecting Wipe Data/Factory Reset, make sure you select Wipe Cache Partition. When complete, then select Reboot System Now.

https://www.youtube.com/watch?v=O0Z7qKvS5n8