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I try to root my device , I think it works fine but I notes A battery problem so I do a "Factory data reset" but My device still not OK even after I update it:
1) I can not use FBReader but I see it on the Apps list
2) The battery still not perfect, my last charge discharged in 12h ( 16%)
3) I can not get the status Bar in Onyx Neo Reader
How Can I reset my device to the original settings
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