Sony SRS-XB30 portable speaker won't turn on

I plug my srs xb30 to an electric socket because it low battery orange lights keeps blinking so i tried to. Charge it and unfortunately my chargers connecter broke and accidentally the negative terminal got entangled i tried connecting and accidentally mismatch my terminals and then there was power surge or short circuit....the charger pops like an explosive inside and the speaker turn off and won't turn on even my smartphone charging port got damaged because I was charging my phone on the sony srs xb30 before the electrial incident and now my Sony srs xb30 wont turn on i disassemble it and finds no burn chip or board everything looks fine but the machine wont turn on. I replaced the charging port flex cable or rebon cable am sure some resister or fuse or an ic is off or something got shut down or fried please help