Apple Magic Keyboard A1843 EMC 3138

[Borteck]

Hi,
My Magic Keyboard with numeric keypad and no TouchID has lost its magic and doesn't work anymore. Not by Bluetooth nor with direct lightning/usb cable.

The model is A1843 EMC 3138 and logic board 820-00789-A.
Does someone have the schem and boardview please ?
Voltage test points would be much appreciated !

Battery is charging : 4,2v on pin 4

Thanks a lot
A.

[Borteck]

Re: Apple Magic Keyboard A1843 EMC 3138

Hi, new infos about the problem.
When the keys cable is detached, the Bluetooth comm is back, connected with the laptop.
Caps around the connector are at 3v without the cable and fall to 0 when re-attached.

I can see a small fold on the cable, surely a break inside the cable. It's obviously not replaceable so the next move will be scratching the cable coating, microscope and solder extra fine wires... And they are a lot !