Logic Board Repair Case Studies
820-03637 A3434 No Power Repair – Severe Water Damage and UF400 Reball
820-03637 A3434 No Power Repair – Severe Water Damage and UF400 Reball Fault Description This 14-inch MacBook Pro M5 2025, model A3434, logic board 820-03637, came in from the Clayton VIC 3168 area with severe water damage and no power. The customer explained that a water bottle opened inside a
820-03400 A3401 No Power After Screen Replacement – UD950 Fault
820-03400 A3401 No Power After Screen Replacement – UD950 Fault Fault Description This 14-inch MacBook Pro M4 2024, model A3401, logic board 820-03400, came from a computer shop that provides screen replacement service. The original fault was a broken screen, but the MacBook could still power on before the screen
820-02918 A2992 No Power Repair – SN2012024 USB-C Controller and Digital Mic Fault
820-02918 A2992 No Power Repair – SN2012024 USB-C Controller and Digital Mic Fault Fault Description This 14-inch MacBook Pro 2024 with logic board 820-02918 came in with water damage and no power. Initial USB-C meter readings were: USB-C port 1: 5V / 0.4A stableUSB-C port 2: 5V / 0.23A
820-02757 A2918 No Power Repair – UF400 and UF500 CD3217B13 Replaced
820-02757 A2918 No Power Repair – UF400 and UF500 CD3217B13 Replaced Fault Description This 14-inch MacBook Pro A2918 with logic board 820-02757 came in with water damage and no power. Initial USB-C meter readings were different between the two ports: USB-C port 1: 5V / 0.0A stableUSB-C port 2:
820-02098 No Backlight Repair – UP800 & QP800-QP803 Replaced
Detailed board-repair case for a 2021 14-inch MacBook Pro A2442 with 820-02098 logic board, water damage and no backlight. Replacing UP800 restored backlight only temporarily; QP803 later failed short, and the final fix was replacing all four LUXE MOSFETs QP800-QP803 as a set.
820-02020 A2338 No Power Repair – R5262 Open in Charging Circuit
820-02020 A2338 No Power Repair – R5262 Open in Charging Circuit This 13-inch MacBook Pro A2338 with logic board 820-02020 came in with a customer report of: water damage no power On initial testing, both USB-C ports showed: 5V / 0.12A, repeating The machine was not reaching normal power-up.
820-01700 A2141 No Power Repair – U9580 PP2V5_NAND_SSD0 Fault
820-01700 A2141 No Power Repair – U9580 PP2V5_NAND_SSD0 Fault Fault Description This 16-inch MacBook Pro A2141 with logic board 820-01700 came in with a customer-reported fault of: No power On initial USB-C power-meter testing, all four USB-C ports showed: 20V / 0.02A stable This was an
820-00928 A1707 UB400 CD3215C Repair
820-00928 A1707 UB400 CD3215C Repair Technical board-repair note: 15-inch MacBook Pro A1707 with repeat rebooting and no 20V USB-C negotiation. The fault was traced to a shorted UB400 CD3215C USB-C controller pulling down PP3V3_UPC_TB_LDO. Fault Description This 15-inch MacBook Pro A1707 with logic board 820-00928 came in with a USB-C
17-inch MacBook Pro 2010 820-2849 Repair: CPUVTT Collapse and Black Screen Fixed
17-inch MacBook Pro 2010 820-2849 Repair: CPUVTT Collapse and Black Screen Fixed Intro This 17-inch MacBook Pro 2010 came to us as a very special repair. The customer loved this well-maintained machine, and because Apple no longer makes a 17-inch MacBook Pro, repair cost was not the main concern. The
