Condition & repair
Authorised service centre or local shop — what it costs you later
The cheaper repair today is frequently the more expensive one at resale, and the difference is bigger than the saving.
What the price book asks
Every serious buyback flow includes a screening question about the display being original. "Original" means the panel the phone was built with, or a genuine replacement fitted by an authorised centre. A panel from a market repair is not, and answering otherwise fails at inspection.
The deduction for a non-original display is one of the largest in the table, often larger than the deduction for a cracked original one. That is the arithmetic that catches people out.
How it gets detected
| Platform | How inspectors check |
|---|---|
| iPhone | Settings › General › About › Parts and Service History names non-genuine display, battery and camera |
| Samsung | Diagnostics in Samsung Members, plus panel behaviour and colour |
| Other Android | Screen colour and touch response, adhesive marks, mismatched bezels, missing sensors |
| Any phone | Water resistance seals disturbed, screws replaced, frame gaps |
None of this is exotic. A trained inspector spends a minute on it.
When a local repair is still right
- The phone is old and you intend to use it until it dies — resale is not part of the plan.
- The part is not resale-graded: a charging port, a speaker, a SIM tray.
- The authorised part is unavailable for the model, which happens once a phone is out of support.
- The repair is urgent and the phone is low-value.
For a phone you will sell within a year or two, and especially for anything involving the display or battery, the authorised route usually nets out ahead.
If a repair has already happened
Declare it. A disclosed third-party part is a known deduction agreed before pickup; an undisclosed one is a revision at the door, and the revision is always worse than the deduction would have been.
Keep the repair invoice too. If genuine parts were used at an authorised centre, that paperwork is what proves it — and it protects the higher band.
The parts where it makes the biggest difference
Not every component is graded. Knowing which ones are tells you where the authorised route is worth its premium.
| Part | Graded at resale? | Where to repair |
|---|---|---|
| Display | Yes — a screening question | Authorised, always, if you plan to sell |
| Battery | Yes — health and genuineness | Authorised where available |
| Rear camera / lens glass | Yes, as a fault | Authorised on flagships |
| Charging port | Only if it fails | Local is fine |
| Speaker or microphone | Only if it fails | Local is fine |
| Back panel | Cosmetically, on the body ladder | Usually not worth repairing at all |
The rule that falls out of this: anything the price book asks a direct question about deserves genuine parts. Everything else is a repair, not a grade.
Frequently asked questions
- Does a local repair reduce phone resale value?
- Yes, significantly, when it involves the display or battery. Price books ask whether the display is original, and a market-fitted panel triggers one of the largest deductions in the table.
- How do buyers know a phone was repaired locally?
- On iPhones, Settings names non-genuine parts directly. On Android, inspectors check panel behaviour, colour, adhesive marks, bezel gaps and diagnostics.
- Is an authorised repair always worth the extra cost?
- For displays and batteries on a phone you plan to sell, usually yes. For a charging port or speaker, or a phone you will keep until it dies, a local repair is fine.
- Should I mention a past repair when selling?
- Always. A declared repair is a known deduction; an undeclared one becomes a price revision at pickup.
- Which repairs must be done at an authorised centre to protect resale value?
- Display and battery above all, and camera work on flagships — those are the parts price books ask direct questions about. Ports, speakers and microphones can be repaired locally without affecting the grade.