First help may need to know how it got dead, water, charger, or just dead?Try this to see, remove your battery, take a small pin and adjust the open teeths in the battery terminals on your battery, sometimes when the battery contacts are too open wide, contact is not made. If that doesnt help take your usb cable, connect phone to computer and tab power button like twice, if your pc finds a new hardware your phone can be revived by flashing. take it to a repair shop for flashing.

Yes andrew right