• We have forgotten on PIN or Patern Lock at Samsung Galaxy S7.
• We want to remove all personal data and setting that was stored in Samsung Galaxy S7.device.
• Samsung Galaxy S7 has a persistent problem that cannot be solved.
• Because we will sell our Samsung Galaxy S7 Android phones.
• Our Samsung Galaxy S7 has been lagging and stuck on android logo, this call with bootloop
• There are many bug on Samsung Galaxy S7.
• We will give our Samsung Galaxy S7 away to some one else, and we dont want that one know everything about our secret data, so we have to erase all data before back up it.
• and many other reason.

1. Make sure your batery is fully charged, Recomended you have 80% of battery capacity
2. Then Backup your Samsung Galaxy S7. See This Guide
3. Go to menu: System Setting >
4. Select Backup and Reset >
   
5. Factory Data Reset > 
   
6. Reset Phone
   
7. Choose Erase everything to confirm that you already to perform hard reset on Samsung Galaxy S7
8. Samsung Galaxy S7 will continue to hard reset process to restore factory default.

2ndMethode. Hard Reset Samsung Galaxy S7 Using Hardware Keys:

1. Make sure your battery is fully charged, we recomended that your battery has 80% power
2. Always BackUp your important data that store in Samsung Galaxy S7. see this guide
3. Turn Off your Samsung Galaxy S7 by hold and press Power Button for a second.
4. Release any SIM card and SD card that was installed on your Samsung Galaxy S7 smartphone.
5. Then press and hold together a combination button Volume Up + Home Button + Power button   at same time for a seconds.

   Hard Reset Samsung Galaxy S7
6. Release Power Button, and keep holding volume up and home button for a few minute. Then release All button.

   samsung galaxy s7 - android logo
7. Then you will see picture like shown on image below.

   logo samsung galaxy s7

8. And now you will enter, Android System Recovery.

Android System Recovery

9. Scroll down using Power Down button, and you can select "wipe data/factory reset" and confirm it using Power Button.

   wipe data - Hard Reset
10. Then select  "Yes". use volume down button to choice menu, and again confirm it using Power Button. Please be ware, on this this step you will be lost everything stored on your phone. So, make sure to always backup all data before performing hard reset.
    
11. Now, wait the process untill you see data wipe complete appear on screen.

    wipe data process
12. After a few minute hard reset process will finished, and your screen will be back to Android System recovery screen.
13. Now, Select Reboot System Now to reboot your device.
    

    Reboot System Now
14. You can wait a while for  Samsung Galaxy S7 to reboot system
15. Done, your hard reset process success now.