Acer Chromebook 12 C851 Bottom Cover Replacement

Replacing the bottom cover is a common repair for units that have suffered from heavy drops, cracked casing, or missing rubber feet. Because this panel protects the entirely fanless internal cooling system, maintaining a sealed and secure fit is vital for preventing overheating and debris buildup. This model typically uses 12 Phillips #0 screws to secure the base. Note that some screws may be hidden under the rear rubber grips to provide a seamless, tamper-resistant finish. Before removal, ensure the microSD card is ejected from its slot. Leaving a card inserted while prying off the cover can snap the card or damage the internal reader.

Guide Details
Repair typeBottom Cover Replacement
DifficultyEasy
Estimated time15 min
Steps1
Parts Needed
  • Bottom Cover
Tools Required
  • Phillips Screw Driver
  • Platic Pry tool
Materials
  • Lint-free wipes
  • Isopropyl Alcohol
Step 1

Remove bottom cover screws

Remove the Phillips screws securing the bottom cover. [Warning] Before removal, ensure the microSD card is ejected from its slot. Leaving a card inserted while prying off the cover can snap the card or damage the internal reader.

Remove bottom cover screws image 1
Active Image Fastener Legend (11)
Remove the Phillips screws securing the bottom cover.
Warning
Before removal, ensure the microSD card is ejected from its slot. Leaving a card inserted while prying off the cover can snap the card or damage the internal reader.

Conclusion

Seating: Run your finger along the edge of the chassis to ensure there are no gaps between the palm rest and the new bottom cover. Rubber Feet: Confirm the replacement panel includes the non-slip grips to ensure proper airflow and stability on desks. Screw Security: Double-check that the screws are snug but not overtightened, as the plastic standoffs can strip if too much force is applied.

Step 1 of 1
Remove bottom cover screws