MacBook Pro 17" Models A1151 A1212 A1229 and A1261 Left Thermal Sensor Replacement
- Author: Walter Galan
- Difficulty: Difficult
The left thermal sensor for Models A1151 and A1212 is the middle thermal sensor for the A1229. Use this guide to replace the middle thermal sensor on a MacBook Pro 17" Model A1229.
This detects the internal temperature of your machine for heat management.
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- Battery 1 step
- RAM Shield 2 steps
- Upper Case 7 steps
- Optical Drive 3 steps
- Logic Board 8 steps
- Left Thermal Sensor 1 step
Do not yank the upper case off quickly. The case is attached to the logic board via a ribbon cable.
Lift up the back of the case and work your fingers along the sides, freeing the case as you go. Once you have freed the sides, you may need to rock the case up and down to free the front of the upper case.
If the right speaker assembly remains attached to the logic board, hold the logic board with one hand and slide the speaker up slightly to free it from the logic board.
To properly reassemble your MacBook Pro, you'll have to clean off and replace the thermal compound from the three chips on the underside of the logic board. Use our Applying Thermal Paste Guide to prepare the processor and heat sink surfaces.