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I've tried booting the iCloud locked board on the external monitor, using the same type-c/hdmi adapter i used on the faulty board, and its showing correctly the screen, so, unfortunately you're right, its about graphic part of cpu, so i guess this is a no-fix case

I get a blurred image when connected to external monitor, i tried several type-c-hdmi adapters

So, i bought a donor board, its icloud locked but fully functional, now i know the display is 100% working, i've also read the display FPC values and all are the same...

Im focusing now on i2c lines, like spi_tcon_cs_L, unfortunately my board is 820-02385 and there is not diode values references on openboard

LID signal is 1v2, no luck, the problem is not about the LID

Oh, you are right, i misunderstood the meaning of the line, so its an enable line (1v8) to enable a 5v rail. ok, got it. I dont have 1.2v on the lid signal, its about 1v, i think its a bit low, i gonna try to force it to 1.5 and if nothing happens i will try 1.8v and post result, thank you.

On closed screen i get 0V, open screen 1V, the schematics says this line need 1v8 for enable, should i try to emulate 1v8 ?

I found the LID sensor in the corner on the screen is broken, does the macbook m3 need it fully working to show image on screen ? usually disconnecting it the device just bypass it, but im not sure

edp fcp are all good, but i found this live from EDP_BLC_5V_EN should be 5v and i have 1.8v UP710 get enable from LCD_PWR_EN wich comes from pmic, then it generates all the edp lines, the lines are all present at 1v8 but EDP_BLC_5V_EN should be 5v right? it get 1.8v there

The system has been flashed and the external monitor is showing the login screen, so the mac its 100% working, i gonna try to disassemble the old monitor and check the t-con now, but if you have any suggestion would be very appreciated, thanks

Since when trying to boot on external monitor - sometimes i get a grey empy image (the one of the recovery), sometimes i get recovery screen with the top banner - it may depends on the type-c/hdmi adapter but im not sure... So i'm trying to restore the device with Apple Configurator 2 to check...

LPD_INT_HPD is present with 1v2v

The enable line is present with 1v8

Hi and thank you very much for these precious informations, tomorrow i will do all these checks. thanks

When the damage occurred, i remember the backlight of the keyboard flashed some times, then turned off, now, powering on the machine, the backlight on the keyboard stays off, always.

Hello everybody, i hope you can help me with this problem, im getting mad. So the issue started when the display cable was disconnected with the device powered, after that, total black screen. (I tried 2 different screen working known) The screen is total black, no backlight and no image at...