MacBook Air A2681 M2 No display, no backlight

[baggadap]

Hi
I have the exact same fault as princepal
No display, no backlight, BL_PWR_EN = 0V
Lid sensor works fine, also ext display via USB works fine.
I don't have a spare display available for testing, any idea how to proceed?

Thanks!

[mon2]

Do you have an image on the display? Confirm with a phone torch light.

What is the history of the laptop?

https://logi.wiki/index.php/Backlight_Troubleshooting

[baggadap]

Do you have an image on the display? Confirm with a phone torch light.

What is the history of the laptop?

https://logi.wiki/index.php/Backlight_Troubleshooting

Thanks for the quick response!
No image with a torch light either. History is that the problem "just happened" - but you never know ;-) No signs of liquid or abuse though..

[mon2]

Carefully review the voltage to ground of the display load switch that supplies power to this target. Post each measurement.

[baggadap]

Here you go.
Thanks again, I really appreciate it!

[Rsmobile zardim]

i have same problem with A2681 when i plugged charger only sound for logo nothing show on display no graphics no lights. i measure the voltage value on CP719 is 2.17v , UP701 no. 2 no voltage, cp710 3.7v

[mon2]

Issue may be with the lid sensor believing the lid is closed. Test with an external screen using USB hub / dongle to HDMI. Do you see the proper graphics there?

Does the caps key led toggle upon press? If yes, then you are at the login screen and the OS is booting.

[Rsmobile zardim]

Yes i checked with external lcd via HDMI its working perfectly but keyboard and trackpad dose not work.