Laptop Keyboard: fractured flex-cable trace. Repeated bending breaks one or more conductors.

The distinguishing clue

Keys fails intermittently along a damaged keyboard cable path.

Checks before an assessment

Record the exact affected keys, layout and whether the problem happens in every application. An external keyboard can help keep work accessible without pressing damaged keys harder.

Stop point: Liquid residue under a keyboard can continue corroding the motherboard.

Workshop confirmation and repair

Device-level check: Test in firmware and Windows, inspect layout settings and check the ribbon without forcing its latch.

Targeted check: Compare the failure pattern and check continuity without puncturing the cable. If confirmed: Replace the damaged flex or complete input module.

Repair boundary: Replace the matched keyboard or repair its connector after software causes are excluded.

Related cause to rule out

When the device works intermittently after chassis movement, also consider Laptop Keyboard: loose internal flex cable before choosing a repair.

Checks after the work

After repair or replacement, check every key, modifiers, backlight, sleep shortcut and repeated typing.

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