If your phone is completely locked up and you can’t even access the menus there is a second way of resetting the Galaxy s4.
- Press and hold the power button to turn the device of.
- If your device won’t turn of remove the battery for a second and put it back. ( Do not turn your phone back on )
- With your device of press and hold the volume up and the home button, then without releasing the two other buttons press and hold the power button as well.
- Hold these three buttons until you can read recovery mode in the upper left corner of the screen. As soon as you can see it release the button combination.
- To navigate the recovery mode screen use the volume up and down to go up and down. Use the power button to select an option.
Once you are done your phone should once again be just like it was the day you bought it.