• Always disconnect power and discharge the battery before beginning any repair.
• Use an anti-static wrist strap (ESD) to prevent electrostatic damage to components.
• Keep screws organized by step — magnetic project mats are highly recommended.
• Never force connectors. Use a spudger to gently lift ZIF, FPC, and board-to-board connectors.
• If your Mac has a swollen battery, do not attempt removal yourself — contact a professional.
Model Identification
Model Number(s)
A3143A3389
EMC Number(s)
85498859
Order Number(s)
MU963LL/AMU973LL/A
Identifier(s)
Mac16,15
Product Line
Mac Studio
Year
2025
Mac Service Tools
Adjustable torque driver (10–34 Ncm)923-02995
Adjustable torque driver (0.3–1.2 Nm)923-0735
Adjustable torque driver (1.2–3 Nm)923-06026
Adjustable torque wrench (2.5–25 Nm)923-07181
Antenna tool923-01322
ESD mat
ESD-safe tweezers
ESD wrist strap with clip or plug
Ethanol wipes
Ethernet cable
HDMI cable
Isopropyl alcohol (IPA) wipes
Kapton tape922-1731
Magnetizer
Metric ruler
Nylon probe (black stick)922-5065
Scissors
Sticky notes (3 by 3 inches)
Torque driver (orange, 0.85 kgf cm)923-08131
Torx Plus 3IP 25 mm bit923-07593
Torx Plus 3IP 44 mm half-moon bit923-08468
Torx Plus 4IP 25 mm bit923-07594
Torx Plus 5IP 50 mm bit923-08673
Torx Plus 8IP 25 mm bit923-07595
Torx Plus 10IP 50 mm bit923-07183
Torx Plus 20IP 70 mm bit923-07303
Torx T3 screwdriver
Torx T6 70 mm bit923-07592
Torx T7 screwdriver
Torx T8 25 mm bit923-0734
Torx T10 50 mm bit923-0740
USB-C charge cable661-06670
Ethanol wipes must contain at least 90% ethanol and no additives except isopropyl alcohol.
Tools with part numbers are available from Apple's Self Service Repair Store. Tools without part numbers can be purchased from electronics supply retailers.
Need Professional Help?
Our Apple Certified Technicians can handle any Mac Studio (2025) repair. Free diagnostics, 90-day warranty on all parts.