Laptop Touchpad: input controller failure. The local controller stops scanning or reporting the device.

The distinguishing clue

The entire device is absent while its cable and power are intact.

Checks before an assessment

Compare an external mouse and note whether movement, clicking or gestures fail. A lifted touchpad or distorted palm rest may indicate battery swelling and must not be pressed down.

Stop point: A lifting touchpad can be the first visible sign of battery swelling.

Workshop confirmation and repair

Device-level check: Compare an external mouse, check settings and inspect for battery swelling beneath the palm rest.

Targeted check: Compare firmware detection and test controller power and communication. If confirmed: Replace the module or repair the board controller path.

Repair boundary: Repair the cable or replace the correct touchpad after ruling out pressure from an unsafe battery.

Related cause to rule out

When the device is not detected and shows no response in any environment, also consider Laptop Touchpad: input-device power loss before choosing a repair.

Checks after the work

After repair or replacement, check movement, click zones, gestures, palm rejection and sleep recovery.

For an AEPC repair assessment in East Auckland, provide the exact model and observed clue. Call 027 908 8880 before visiting the Burswood workshop.