Samsung J7-PRIME pattern unlocking.
1.phone doesn't even switch off without correct pattern.
2.so, Restart the device.
3.while phone is rebooting hold VOLUME UP KEY+POWER KEY+HOME BUTTON.
4.Give command by pressing volume up button.
5.select Wipe cache/reset option.
6.wait untill the process.
7.Reboot the device and you are ready to go!
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