Ainol Crystal is a popular Chinese tablet. However, like any Chinese tablet or smartphone, it can have software failures and errors. For example, I couldn’t enable Wi-Fi, as much as I tried. The only solution was Ainol Crystal hard reset. You can use this method to remove unlock pattern, erase all user data from tablet or fix other software errors. Now I'll tell you how I performed Ainol Crystal hard reset. First, you need to turn off the tablet. Then press POWER + VOLUME UP. Hold the buttons for some seconds. If nothing happens, then try to press and hold POWER + VOLUME … [Read more...] about Ainol Crystal Hard Reset: return factory settings