How to Get Rid of Demo Mode?

CS51

Junior Member
Oct 21, 2014
2
0
Hello,
My english is not so very good so forgive me when I make a few mistakes,

Last saturday suddenly the word DEMO appeared in my 10" tablet screen.
I tried to reset the tablet, put it back in factory settings but nothing helped.
Can anyone help me out? Unfortunately I am not very technical.

Here are the details of my tablet:

model number GA10T
Processor Dual Core - A23
Android 4.2.2
Firmware V2.0.8
Kernel vesion 3.4.39
android10@linux2#302
Wed March 26
Build number
polaris_eng4.2.2JDQ39 20140326 test-keys

Many many thanks in advance
 
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