A Soft Reset (or Forced Restart) differs from a Hard Reset (or Factory Restore) in that it doesn’t delete any essential data from the smartphone or tablet but you may lose some RAM or temporary data, for example any unsaved game progress or the page you were viewing on a website.
A Hard Reset on the other hand would only be required when you want to wipe all data from the device, starting it over.
1. To perform Soft Reset on your LG Optimus One P500, you will have to unlock your screen so please do that and press power button.
2. Hold it untill you will see menu similar to this:
3. Now select from the menu Reboot or Restart option by taping on it.
4. Now your device will switch off and switch on. This is it, good job.