Hey. The tab may have suffered a power surge or software corruption. To troubleshoot, connect it to a computer and press power button to see if it is detected (it may be with a #do ndoo# sound or with an on screen USB bulloon pop up). If it is detected, then the issue will most likely be software but if it is not detectable, then it will be a hardware issue requiring that you take it to a vodashop for service. Kindly comment below with the results.