STEP 1 - press and hold VOLUME UP + CENTER BUTTON(HOME) +POWER BUTTON until an android logo appears on the screen
STEP 2 - use volume to select wipe data/factory reset **then press POWER KEY
STEP 3 - use volume to select Yes (delete) all user then press POWER KEY
STEP 4 - use volume to select Reboot system now then press POWER KEY
handset will reboot
Done
Remove forgotten pattern, fingerprints, PIN and password for Samsung Galaxy without data loss
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