iPhone 18 Pro display faults put warranty and return rules to the test

A persistent white line or panel fault on a new iPhone 18 Pro should be documented before the phone is reset, opened or sent to a repair shop. Photograph the line on a plain background, record whether it remains after a restart, and keep the receipt, serial number or IMEI and all messages with the seller.

Apple's one-year limited warranty covers an iPhone against defects in materials and workmanship when it has been used normally. That wording does not classify every fixed line as a covered defect: Apple lists exclusions for accidental or liquid damage, unauthorized service, modified devices, cosmetic damage and normal wear, and may restrict iPhone warranty service to the country where Apple or an authorized distributor originally sold it.

A display line is a symptom, not a warranty decision

A line that remains after a restart is a reason to request an inspection, not a diagnosis of the failed component. The seller or Apple may need to check the display, frame, liquid indicators, prior repairs and the device's purchase record before deciding whether the issue fits a warranty, a return policy or a paid repair.

Keep the original image files rather than only screenshots. A useful record includes the date and time, the screen brightness, a second device filming the symptom, the condition of the glass and frame, and a written description of what changed. Do not remove a screen protector just to make the line easier to see if doing so could damage the device. Do not authorize a paid repair until the quote identifies the part, labor, taxes, shipping and what happens if inspection finds additional damage.

Back up the phone before service. Apple tells customers to keep a separate backup, remove personal information they want to protect and disable security passwords before warranty service. A backup protects the data; it does not prove that the screen fault is covered.

Apple warranty, direct returns and retailer claims are different

Apple's warranty is a manufacturer promise. A return policy is a sales term, usually tied to the store that took the order. Consumer law is a third route that can give the buyer rights against the seller. A request for a replacement is therefore not the same as an automatic entitlement to a new phone.

Apple's US online store says an eligible product bought directly from Apple can be returned within 14 calendar days of receipt, while products bought from other retailers must follow those retailers' policies. The page also says a wireless-service agreement may not be canceled automatically when an iPhone is returned. A carrier installment plan, trade-in, bundle or activation can add steps that are absent from a direct Apple order.

For a device bought through a carrier, electronics chain or marketplace, send the notice to the named seller as well as to Apple. Ask for a case number and a written inspection result. Keep the packaging and proof of payment until the claim ends. The remedy may be repair, replacement, refund or rejection of the claim, depending on the evidence and the terms that apply to the transaction.

How this plays out outside Taiwan

The first question in any other market is not “What does Apple usually do?” It is “Who sold this phone, in which country, and what route is still open?” Apple’s warranty page says the company may restrict iPhone warranty service to the country where Apple or an authorized distributor originally sold the device. That matters to travelers and import buyers: a phone purchased abroad may require proof of purchase, a local service check or a return to the selling market. The current Apple store page for the buyer’s country is the place to check whether the iPhone model is offered, whether the order came directly from Apple and which return clock applies.

In the United States, Apple’s US store policy gives 14 calendar days from receipt for an eligible direct purchase. That is a store policy, not a universal rule for every US retailer or carrier. A phone bought from a carrier must be checked against the carrier’s contract, financing and return terms. A buyer should save the order confirmation and the date of delivery, then ask the seller whether the white line is being handled as a return, a warranty inspection or a paid repair. The distinction affects who must receive the phone and whether a service charge can appear after inspection.

In the United Kingdom, GOV.UK says online, mail and telephone customers can cancel within 14 days of receiving an item and then have another 14 days to return it, subject to the rules for distance sales and the condition of the goods. The same guidance says a seller must repair or replace a faulty item returned within six months unless the seller proves it was not faulty at purchase; after six months, the seller can ask the customer to prove that point. That route is against the retailer, so an Apple warranty appointment does not replace notifying the shop or website that sold the phone. Keep the delivery date, notice date and inspection report together.

In Australia, the Australian Competition and Consumer Commission says the seller is responsible for remedies when consumer guarantees are not met. For a major problem, the consumer can choose a refund or replacement; for a minor problem, the seller must provide a free repair. The ACCC also says a business repairing an electronic product such as a mobile phone must warn about possible data loss and the possible use of refurbished products or parts. An Australian buyer should therefore ask the retailer to record the complaint, ask what data-warning process applies, and keep a copy of any proposed remedy before handing over the device.

Singapore uses another structure. Singapore’s Ministry of Trade and Industry describes a Lemon Law framework in which a retailer can first offer repair or replacement, with price reduction or refund available when those remedies are not possible or reasonable. The ministry says that during the first six months a consumer may argue that the defect existed at delivery, while the retailer can try to rebut that presumption with evidence. A white line still needs an inspection: the six-month rule does not itself establish that every display line was present at delivery.

These examples show why a global article cannot quote one “three-month inspection period” or one universal replacement rule. In every market, identify the seller, check the official consumer agency and Apple page for that country, and ask whether the claim is being assessed under the seller’s return policy, Apple’s limited warranty or local consumer law. If the phone was imported, ask the seller and Apple which country controls service before paying for transport or an independent repair.

What to send with a claim

Start with a short written timeline: purchase country and date, first sighting of the line, tests already performed, and the remedy requested. Attach the receipt or order record, serial number or IMEI, photographs, video, and any service report. State whether the phone has been dropped, exposed to liquid or repaired. Accurate disclosure is safer than leaving a repair center to discover a condition later.

Ask the recipient to confirm four points: whether the device is accepted for inspection, whether shipping or diagnosis costs apply, whether data may be erased, and when the decision will be issued. If the seller refuses to act, use the consumer agency or dispute route named on the official government site for the purchase country. Do not assume that a social-media report, a retailer’s informal promise or a quoted price proves the technical cause.

Frequently asked questions

Can an iPhone 18 Pro with a white line be replaced immediately?
No. A buyer can request a repair, replacement or refund, but the applicable seller policy, warranty terms, local law and inspection result determine the remedy.

Is there a universal three-month inspection period?
APPI News could not verify a worldwide rule of that kind. Return periods and consumer-law presumptions differ by country, and Apple’s commercial warranty is separate from the seller’s legal obligations.

Should the phone be repaired by an independent shop first?
Not before checking the warranty and seller route. Apple’s warranty excludes some damage caused by unauthorized service, so obtain the written coverage position and a quote before authorizing third-party work.

What is the strongest evidence?
A dated video of the persistent line, the purchase record, the device identifier, a condition record and the service provider’s written findings are more useful than an estimate of how common the fault might be.