My Beats pill Bluetooth speakers stopped working suddenly one day. I opened them up. Disconnected the liPo batteries. Then I used new batteries but no luck . Internals have No visible damages as such. But one thing I noticed is whenever I connect micro usb charger the 'OEC ti 29w z52n' ic gets super hot. I don't know what this IC is for. Can anybody tell why is this happening and what could be the possible Solution. I have a fair understanding of amplifiers and electronics.
Link of the pic for reference.
https://drive.google.com/file/d/0B5y9SOyTSfoSZTNNbFR3dGxsVFU/view
Link of the pic for reference.
https://drive.google.com/file/d/0B5y9SOyTSfoSZTNNbFR3dGxsVFU/view