Direct answer
If no keyboard appears in any app, the input method may be disabled, crashed or not selected. If one app is affected, treat it as that app’s layout problem.
What this covers
- The observed symptom matches this record
- Customer-accessible settings, connections and external components
- Diagnosis before reset, deletion or component replacement
What it does not cover
- ×A model-specific error code with a different documented meaning
- ×Internal electrical, battery-cell, gas, refrigeration or sealed-component repair
- ×A guarantee that every model exposes the same control label
Capture the exact symptom
ReversibleTap a text field in Settings search and another app; check the keyboard selector in the navigation area.
Run the smallest isolation test
ReversibleRestart the phone, select an enabled keyboard in Languages & input and update that keyboard app.
Correct only the proven cause
ReversibleClear only keyboard cache first; enable a built-in fallback before removing or resetting the preferred keyboard.
Verify before changing anything else
ReversibleType in Settings, Messages and a browser field after restart.
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 before resetting anything?+
Tap a text field in Settings search and another app; check the keyboard selector in the navigation area.
What is the safest isolation test?+
Restart the phone, select an enabled keyboard in Languages & input and update that keyboard app.
When should I stop troubleshooting?+
Do not erase keyboard data if custom dictionary or local clipboard history matters and is not backed up.
Answer for the exact device and software version shown above.