[SOLVED] 820-2914-b no trackpad and no keyboard usb keyboard an trackpad works

[speedyaction]

Hi. I have 820-2914-b no trackpad and no keyboard. Usb keyboard an trackpad works. Also laptop powering up from power button. No water damaged. This laptop come with faulty gpu, I replaced for new one also reballed ram blocks on another side of board under gpu. Now laptop powering and going to osx.

J5713 voltage check:
pin 30 : 3.324v
pin 4 : 3.493v
pin 5 : 3.479v

am not sure why is no working. anybody had this problem b4 ?

 

[larossmann]

Do both USB ports work, or just one of them? sdcard slot/bluetooth working?

 

[speedyaction]

yes two usb works no problem and bluetooth also works

 

[larossmann]

Either bad trackpad & trackpad cable or bad U5701. Check R5704 to make sure 3.3v is present on both sides. Keyboard won't work if trackpad is bad on this model in my experience.

 

[speedyaction]

trackpad cable broken. somebody was here b4 me. i will replace it and see if it works. thx for help m8

 

[speedyaction]

ok. bought new trackpad cable and works happy days , thanks for help m8