With adhesive dead, so dismantled, will certainly destroy the prototype, will not warranty, even if the shell is opened, it can not be repaired, usually overpressure burned, the main components on the circuit board burned. If you want to repair, you have to keep this special plastic shell intact, otherwise it's a good match. The bottom plate plastic needs to be removed, and the original output voltage of the charging head is known, and the replacement circuit is repaired by installing a sound.