A phone or tablet problem starting right after an OS update, a new case/accessory or a restored backup should be checked against that change first. For Google Play services, first restart, check free space and update Android, Play system and Play services.
What this covers
- Google Play services with this exact failure state
- Diagnosis across one app versus system service update, account, storage and device certification
What it does not cover
Try in this order
0 of 4 completedCapture the exact failure state
ReversibleNote the exact update version, accessory or backup date, and confirm the feature worked immediately before it. Expected behavior: provide account, notification, location and app APIs without excessive error loops.
Isolate the component boundary
ReversibleRestart, check free space and update Android, Play system and Play services. Test with the new accessory removed, or check the update's known-issues note for the exact symptom. Boundary to separate: one app versus system service update, account, storage and device certification.
Correct only the proven cause
ReversibleClear cache before service data and re-add accounts only with credentials and sync verified. Reset the one setting the update changed, or replace the incompatible accessory.
Verify and stop safely
ReversibleConfirm normal operation with the change present for one full day of typical use. Do not sideload system-service packages from untrusted sites.
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