Direct answer
Open Settings › General › About and record Model Name, Model Number and software version. Keep serial, IMEI and account identifiers private.
What this covers
- Current iPhone and iPad devices
- The exact condition described in the title
- Customer-accessible checks before internal repair or reset
What it does not cover
- ×A different brand, model family or similar-looking code
- ×Internal live-electrical, gas, refrigerant or sealed-system testing
- ×A guarantee that a named component has failed without isolation
Capture the exact state
ReversibleCapture only non-sensitive model and software fields.
Separate the likely fault domains
ReversibleSeparate retail part number, A-number and device name.
Correct only the proven, accessible condition
ReversibleUse hardware family plus software version.
Verify once before going farther
ReversibleConfirm the physical generation matches support guidance.
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 record first for “Where to find an iPhone or iPad model number”?+
Capture only non-sensitive model and software fields.
Does the symptom or code prove a part has failed?+
No. Separate retail part number, A-number and device name.
When should I stop troubleshooting?+
Do not publish IMEI, EID, serial or Apple Account details.
Answer for the exact device and software version shown above.