No, even if you factory reset the Galaxy S4 it will not downgrade.
To reset your Galaxy S3, you simply need to: Launch settings, Open "Backup and reset," and tap "Factory data reset" to reset your galaxy s3 to its original factory settings.
To unlock a Samsung Galaxy Young phone when you have forgotten your Gmail account information you need to take the phone in for a factory reset.
Applications get erased when you do a factory reset.
If you forgot your password and can't unlock your Galaxy Nexus, an option would be to use your Gmail email and password to unlock. If that doesn't work, the only remaining option is to reboot your phone into recovery and do a factory reset.
To hard reset a Samsung Galaxy Core 2, turn off the device first. Then, press and hold the Volume Up, Home, and Power buttons simultaneously until the Samsung logo appears, and release the buttons. Use the volume keys to navigate to "Wipe data/factory reset" in the recovery menu and select it with the Power button. Confirm the action, and once the reset is complete, select "Reboot system now."
Go into settings, and near to bottom there should be a setting called 'backup and reset'. Press on the button labeled 'factory reset'. That will set your tablet back to the way you got it, unless it was second hand.
The code is: *2767*3855# to reset the phone back to the factory settings.
Just change your password.
You can do a master reset. You would be resetting everything into it's factory settings.
In order to reset your Samsung laptop the factory settings, you will need to have access the system restore disks that originally came with the computer. You can usually order them if you don't already have a set.
To reset the Samsung GT-E1200T, go to the setting tabs and onto the Privacy Settings. Scroll down to personal data to factory data reset.