Direct answer
A failure immediately after a known change should be checked for new defaults, stale pairing, power sequencing or compatibility before factory recovery. For Apple Handoff and Continuity, first confirm both devices use the same account with Bluetooth/Wi-Fi/Handoff enabled.
What this covers
- Apple Handoff and Continuity with this exact failure state
- Diagnosis across Apple Account and feature eligibility versus Bluetooth, Wi-Fi and app support
- Customer-accessible observation, settings and external components
What it does not cover
- ×A displayed manufacturer error code with a different documented meaning
- ×Live electrical, sealed-system, internal battery-cell or gas repair
- ×A claim that every model exposes identical controls
Capture the exact failure state
ReversibleRecord the change, version, outage time or newly connected hardware and the last known working state. Expected behavior: advertise eligible activity between nearby devices on the same account.
Isolate the component boundary
ReversibleConfirm both devices use the same account with Bluetooth/Wi-Fi/Handoff enabled. Remove or roll back only the reversible change, or test the previous direct path. Boundary to separate: Apple Account and feature eligibility versus Bluetooth, Wi-Fi and app support.
Correct only the proven cause
ReversibleUpdate, sign into the correct account or restart the one failed service. Reapply compatible settings, update both endpoints or replace the incompatible new path.
Verify and stop safely
ReversibleRestart twice and confirm the feature remains stable with the intended change present. Do not sign out of the account without synced data and credentials.
Evidence ledger
Sources behind this answer
Visible sources support the visible claims. Home Product Support records the publisher, the fact used and the review date; community reports can suggest an issue but do not become a published fact on their own.
Exact questions
Common follow-ups
What should I check first when Apple Handoff and Continuity has this problem?+
Confirm both devices use the same account with Bluetooth/Wi-Fi/Handoff enabled.
Why not factory-reset immediately?+
The useful boundary is Apple Account and feature eligibility versus Bluetooth, Wi-Fi and app support. A reset can erase state without proving which side failed.
When should I stop troubleshooting?+
do not sign out of the account without synced data and credentials.
Answer for the exact device and software version shown above.