
Identify the missing response
Ask whether the complaint concerns incoming calls, keyboard feedback, alarms or all haptic actions. Different features can have separate preferences. Record the exact task rather than saying “vibrator dead” after one silent call.
Make a simple response matrix
With the owner, inspect the relevant manufacturer-documented settings and test the permitted tasks individually. Use a harmless test call or notification. Note whether sound and visual alerts still appear. A feature intentionally disabled by its settings should not be recorded as a physical failure.
Stop before speculative opening
If supported settings and repeatable checks do not explain the complaint, document prior damage and any repair history. Internal connectors, assemblies and control paths require model-specific assessment. Do not promise that replacing one part will resolve every haptic problem, or press and strike the device to provoke a response.
One haptic feature is disabled
If keyboard feedback is off but an approved call test produces vibration, record the motor-related observation separately from the disabled feature. Restoring a preference is a configuration change. It should not be described as replacing or repairing a physical assembly.
Your practice record
- Task expected to create vibration
- Relevant preference checked
- Sound, visual and haptic results separated
- Prior damage and intermittent behaviour
Repair procedures involve heat, electricity, fragile parts and customer data. Practise under qualified supervision and work only on devices you are authorized to service.

