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mardi 27 septembre 2016

downgrade from marshmallow 6.0.1 to lollipop 5.1.1 problems !!

hi guys
after i downgraded from MM 6.0.1 to LP 5.1.1 i faced two problems please help me !!!
1 : i lost my IMEI and network connection , wifi is still available but i can't make any calls or send messeges
there is no network and IMEI is NULL
2: the phone is lagging after press on anything it takes 2-3 second to open it ,, and there is a slow motion while opening it
pleeeease help me !! I'am using SM-J7OOH ( J7 2015 )


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