Macbook A1466 mb 820-3437 keyboard not work

[Pragmatiko]

Hello all,
i have that laptop with keyboard problem.
The keyboard is not working, i have already replaced the whole palmrest but still i have problem.
Checked voltage on J4800 keyboard connector and they are presents.
Any help?


Thank you to all

[techman1025]

Re: Macbook A1466 mb 820-3437 keyboard not work

Hi
Your touchpad is could be bad or corrosion around connectors
Be aware that there are 2 different versions of keyboards in these models and you may need MRI tools to flash the new trackpad to match the keyboard. Otherwise the function keys may not work.
Techman1025

[Pragmatiko]

Re: Macbook A1466 mb 820-3437 keyboard not work

Hi
Your touchpad is could be bad or corrosion around connectors
Be aware that there are 2 different versions of keyboards in these models and you may need MRI tools to flash the new trackpad to match the keyboard. Otherwise the function keys may not work.
Techman1025

Thank you very much for your reply.
Where i can find more info about thar MRI tools?

[highpulse]

Re: Macbook A1466 mb 820-3437 keyboard not work

techman always showing lots of knowledge

how you doing mate ? hope that good !!

[chanpreyveng]

Re: Macbook A1466 mb 820-3437 keyboard not work

hello pls check R4844 =0 if it more than 0 replace it

[Pragmatiko]

Re: Macbook A1466 mb 820-3437 keyboard not work

hello pls check R4844 =0 if it more than 0 replace it

Hello,
thank you, yer R4844 is 0 ohm

[techman1025]

Re: Macbook A1466 mb 820-3437 keyboard not work

Hi
Maybe cable in dead doing a ohm test on both ends to confirm good or bad again inspect connector reflow if needed . Also this might help: http://advancedreworks.com/forum/sho...lt-639-28.html
Techman1025

[Pragmatiko]

Re: Macbook A1466 mb 820-3437 keyboard not work

Hi
Maybe cable in dead doing a ohm test on both ends to confirm good or bad again inspect connector reflow if needed . Also this might help: http://advancedreworks.com/forum/sho...lt-639-28.html
Techman1025

Hi,
cable is new, i have eplaced all palmerst with cable. Also i have exchanged circuit with where is located nand flash. The problem seem on motherboard, but i checked it with microscope and seem all ok .

[Pragmatiko]

Re: Macbook A1466 mb 820-3437 keyboard not work

Solved:

client have replaced palmrest with wrong version

[techman1025]

Re: Macbook A1466 mb 820-3437 keyboard not work

Hi
This is why you never listen to what other have done Like i said in the early post(2 different versions of keyboards in these models)
Good job
Techman1025

[Pragmatiko]

Re: Macbook A1466 mb 820-3437 keyboard not work

Hi
This is why you never listen to what other have done Like i said in the early post(2 different versions of keyboards in these models)
Good job
Techman1025

No no, your alert opened my eyes. Thank you very much.

[MICHAEL_2013]

Re: Macbook A1466 mb 820-3437 keyboard not work

Please, where i can find more info about thar MRI tools? Thanks.