mp4mp5 dead player im noob btw
 

Hi
Im from mexico, i have a dead mp4 player from china. i opened the case and i found this

battery ok 3.6 volts

usb input ok

crystals seems to be ok (voltage in both pins)
buttoms ok
turn on off switch ok

gw25a102-v1.0 witten on pcb

media processor ingenic jz4725b
another chips: comientcl 5767,
ine infineon chip
fbnl63a51k3wg memory i think sunplus (a big"s" logo)

Im electromecanichal engineer so i have any tool needed.

Any sigestion?