When your smartphone or tablet won't react any more - or if you've forgotten the unlock code - then it's usually time to do a hard reset to put the device back to its factory settings. But it's only going to work if you know the right combination of buttons to push. Check out the website www.hardreset.info to find out which keys to crunch. It has the proper information for both modern and older models.
Remember that a hard reset means all data and settings will be deleted, which is why anyone who relies on a mobile device should be sure to regularly update contacts, pictures and other personal data.