Quick Answer: The Acer Chromebook 315’s trackpad is mounted to the palm rest as part of the upper case assembly on most units, so a full trackpad swap usually means replacing the palm rest module rather than just the pad itself. Parts run $20–$40, and the job takes about 30–45 minutes with basic tools.
Why the 315 Is a Bit Different to Service
- As Acer’s larger 15.6″ Chromebook, the 315 uses a wider palm rest and trackpad module than Acer’s 11″ and 14″ models, so parts aren’t interchangeable across the lineup even though they look similar
- The trackpad ribbon cable routes underneath the keyboard deck on most 315 configurations, meaning the keyboard often has to come out first before you can access the trackpad connector
- Acer sold the 315 with both Intel and MediaTek board variants, and while the trackpad module itself is usually shared, always confirm your exact model number before ordering
Fix Steps
Step 1: Rule out a software or settings issue first
Before assuming hardware failure, check Chromebook frozen or unresponsive and try toggling the trackpad off and on from Settings, since a stuck driver state can mimic a dead trackpad.
Step 2: Test with an external mouse
Plug in a USB or Bluetooth mouse. If it works fine while the built-in trackpad stays unresponsive, that confirms a hardware fault rather than a system-wide input issue.
Step 3: Find your exact model number
See how to find your Chromebook model number to confirm which 315 board variant you have before ordering a part, since Intel and MediaTek versions can differ internally.
Step 4: Open the base and disconnect the battery
Remove the bottom panel screws, disconnect the battery connector first as a safety precaution, then locate the keyboard ribbon and trackpad ribbon cables.
Step 5: Remove the keyboard deck to access the trackpad ribbon
On most 315 units the keyboard deck needs to come free before the trackpad’s ribbon connector is reachable underneath. Release the locking flap gently; these connectors crack easily if forced.
Step 6: Swap the palm rest/trackpad assembly and test before final reassembly
Connect the new assembly, power on with the base panel still off, and test the full surface and both click zones before closing everything back up.
Repair or Replace?
Given the low parts cost relative to buying a new Chromebook, a trackpad replacement is almost always worth it on the 315 unless the device is also near its Acer Chromebook AUE date, in which case a used replacement device may make more sense.
FAQ
Do I need to remove the keyboard on every 315 unit?
On most standard configurations, yes, though a small number of revisions route the ribbon cable differently. Check the layout once the base panel is off before assuming the standard order of operations.
Can I buy just the trackpad pad without the palm rest?
Rarely for this model; most aftermarket parts sellers list the trackpad as part of the full upper case or palm rest assembly rather than a standalone component.
What if an external mouse also doesn’t work?
That points to a broader USB or Bluetooth issue rather than the trackpad itself; see Chromebook USB ports not working.
