With an iPhone 12, age matters as much as the failed part. A cracked screen with a stable picture, a tired battery and a charging fault are different jobs; first identify the model and decide whether it remains safe to use.
In this guide
Identify the exact 2020 model
- The 12 mini is compact; 12 and 12 Pro are similarly sized but have different camera configurations.
- Send the capacity, colour and model number, never your passcode or Apple Account password.
- If the phone starts, make a backup before service using Apple's steps.
The family contains iPhone 12, 12 mini, 12 Pro and 12 Pro Max. Size, housing and camera count differ, so a photo is not enough to order a part. Check Settings → General → About and compare the model number with Apple's identification list.
Before testing: when to stop
If the battery is swollen, the screen is lifting, one area becomes unusually hot or there are signs of liquid, do not charge or keep trying to power on. Turn the device off if you can do so safely and arrange an inspection. Do not press a lifted screen or touch loose glass.
Screen, frame and back: follow the impact
- Cracked glass, ink-like patches, lines or ghost touches mean you should stop using the display until it is assessed.
- After a drop, the frame and screen seating matter; a new display does not correct a bent housing.
- On Pro and Pro Max, test every camera separately; focus, stabilisation and camera-cover glass are different faults.
- If the picture is visible, follow the cracked-screen guide without pressing the glass.
Battery and Lightning: separate wear from power
- For fast drain, use the battery diagnostic guide; never press or charge a swollen battery.
- For intermittent Lightning, see iPhone will not charge; put no metal into the port.
- After liquid, unplug it, use no heat or rice, and follow the wet-phone steps.
Check Battery Health and iOS messages. Short runtime is different from a plug that works only at an angle. Apple advises checking the cable, adapter and port debris in its charging guide.
When a local assessment makes sense
- Describe what happened, what still works and any previous repair.
- In Settings → General → About, check Parts and Service History when the section is present.
- NEXX GSM is independent and is not affiliated with or authorised by Apple.
At our independent iPhone repair service in Bucharest, we inspect the display, battery, port, cameras and signs of impact or liquid first. Inspection establishes the cause and the matching part option. If data matters, do not Erase or Restore before diagnosis.
Still having the problem?
Tell us the model and what you have tried. We will continue from the issue in this guide.
A draft opens for you to complete before sending. Do not send passwords or device passcodes.
Repairs in Bucharest, Sector 4 · Calea Șerban Vodă 43. Cost and timing are confirmed after inspection, before repair.
FAQ3
Should I replace the battery or the phone?
That depends on the screen, frame, port and board as well as battery health. An inspection lets you compare repair cost with useful value.
Do iPhone 12 and 12 Pro use the same part?
Do not assume so. Even when dimensions look close, assemblies and configurations differ; the exact model number is needed.
Will repair erase my data?
A hardware repair is not a backup. Back up when possible, and do not agree to Restore when local data matters until you understand that it erases the phone.