Hello, friend. As an original ROMOSS quick charge power bank, for the first time, please use it up(totally to 0%), then recharge it to 100% (No interruption is allowed during charging). After that, if you continuously and quickly press the power button 3 times, you will see a picture on the screen. If your picture is EXACT the same as the video shows, your power bank can work normally from now on. [Smile]

свернуть