samsung p5100 flash done but no changes – solution for this tablet , someone know this ? ?

I would like to ask my problem!

I have samsung galaxy tab 2 p5100 android ver 4.0.3 auto restart.

I was confused bec. I already flash Along with the official firmware but nothing change and the problem still the same auto restart and always updating android update. but when it opens all the pictures and application are still there and not lost.

what the problem of this?

tools that i used:

miracle box

all of this but did not solve the problem…