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Sooo I have what feels like a weird a 2018 A1990 / 820-01041 issue here. TL;DR: Fully functional system apart from no image on internal display despite one being rendered to it. Backlight is lit and fully controllable, and all display data is shown in System Information. DETAILS: This...

System reportedly just quit on the user one day and wouldn't turn back on. No signs of liquid exposure. This board has been picked up and put down over the course of a few weeks now. At this point I honestly am not sure what I did to it - there was CD3215 reflowing and touchups, etc involved...

Hey folks! This is mostly a double-check before I call something prematurely. System is fully functional except for its internal display which has no image / no backlight. Both. EDP_PANEL_PWR_EN is at 0V. All supplies to U8500, U8501, and U8510 are present. So either that signal is being...

Hey folks! I have a no POST 16in MacBook Pro. Specifically, at the moment, I see the most obvious problem to be that I have no PPVCCPRIMCORE_PRIM_REG / PP1V05_PRIM voltage output from U7800. I'm reading 51.9 ohms to ground and have a diode mode reading of 0.051V L7821/L7822/R7821. All other...

Hey folks! I'm a long time member of the Discord but this is my first post here on the forums. Super happy to be a paying subscriber and to have this as a resource. Thank you for being here! :D I have a 16in 820-01700 board that had damage to the SSD area on the right wing (when inverted...