MacBook Pro A1990

MacBook Pro A1990
Manufacturer	Apple
Code name	A1990
Release date
Device type	Laptop

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Guides

Repair Guides

	Affects part	Type	Difficulty
MacBook Pro A1990 "Braindead" repair	Motherboard	Soldering	3. Hard
MacBook Pro A1990 Battery not recognized repair	Motherboard battery	Soldering Part replacement	3. Hard
MacBook Pro A1990 Charger not turning on USB-C meter repair	Motherboard	Soldering	3. Hard
MacBook Pro A1990 Charger stuck at 5V repair	Motherboard	Soldering	3. Hard
MacBook Pro A1990 No backlight repair	Motherboard Display assembly	Soldering Part replacement	3. Hard
MacBook Pro A1990 No image repair	Motherboard	Soldering Part replacement	3. Hard
MacBook Pro A1990 No image, EDP PANEL PWR EN missing repair	Motherboard	Soldering	4. Specialist
MacBook Pro A1990 Not turning on, drawing 0.00A - 0.02A at 20V repair	T2 firmware	Software	1. Easy
MacBook Pro A1990 Not turning on, drawing 0.11A at 20V repair	Motherboard	Soldering	3. Hard
MacBook Pro A1990 Not turning on, short on PPBUS G3H repair	Motherboard	Soldering	3. Hard
MacBook Pro A1990 Not turning on, taking 20V and 0.014A, PP1V8 SUS shorted repair	Motherboard	Soldering BGA	4. Specialist
MacBook Pro A1990 Not turning on, with trackpad vibrating repair	Motherboard	Soldering	3. Hard
MacBook Pro A1990 Question mark folder repair	Motherboard	Soldering Software	3. Hard
MacBook Pro A1990 Restarting repair	TouchBar Main Logic Board		3. Hard

Device pictures

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PCB pictures

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Reference measurements (also schematics if available)

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More Information/External Sources

You can manually link to external sources for additional information that might not fit here but are useful such as BIOS image dumps, firmware, etc!

- A1990 820-01814-01,820-01814-A,820-01814-B schematic LO31 and board [1]