How to check an iPhone is genuine before buying used
Buying a second-hand iPhone can save hundreds of dollars, especially through Australian marketplaces such as Gumtree, Facebook Marketplace and eBay. It can also leave you with a locked, stolen, counterfeit or poorly repaired device if you rely on appearance alone. A convincing screen and Apple logo do not prove that the phone is authentic or usable.
The safest approach combines the serial number, IMEI, Apple Account status, repair records, hardware tests and a careful handover. This guide explains what to check before paying, whether you are meeting a seller in Sydney, Melbourne, Brisbane or a smaller regional town.
| Check | What it can confirm | What it cannot prove |
|---|---|---|
| Serial number | The phone identifies itself as an Apple device and may show warranty information | That the phone is in the seller’s possession or free from faults |
| IMEI | The mobile identity and possible carrier or stolen-device concerns | That every internal part is genuine |
| Activation Lock | Whether the previous owner’s Apple Account remains attached | That the battery, display and cameras are healthy |
| Parts and service history | Whether iOS recognises replaced components | That a repair was completed well |
| Carrier Lock | Whether the phone accepts SIMs from other networks | That it will work with every Australian band or eSIM |
| Physical and functional tests | Whether the handset behaves like the stated model | That it has never been repaired or damaged |
Understand what “genuine” really means
A genuine iPhone is manufactured by Apple, but that does not automatically make every used example a good purchase. A real iPhone can have a non-genuine display, an aftermarket battery, water damage, a blocked IMEI or an Activation Lock that prevents you from setting it up. Some phones have also been rebuilt using parts from several devices.
Counterfeit phones are less common than genuine phones with serious ownership or repair problems. A fake may copy the exterior while running an Android interface designed to look like iOS. It might show an Apple-style Settings screen, yet fail to connect to the App Store, use Face ID or receive normal iOS updates.
Treat authenticity as several separate checks: is the device made by Apple, is it the model advertised, can you activate it with your Apple Account, and are its important components and network functions working? This broader view is more useful than searching for a single “real or fake” sign.
Start with the model, serial number and IMEI
Open Settings > General > About while the seller is present. Record the model name, model number, serial number, IMEI and, where shown, the EID for eSIM use. The model number should match the advertised iPhone generation, storage capacity and colour. A seller who refuses to let you view this screen should be treated cautiously.
Enter the serial number on Apple’s official coverage-check page rather than relying on a screenshot supplied by the seller. The result can indicate whether Apple recognises the serial and may show limited warranty or AppleCare information. This is useful evidence, but it is not definitive: criminals can copy a valid serial number from another iPhone and attach it to a counterfeit or mismatched device.
Compare the information in Settings with the IMEI shown by dialling *#06#, the SIM tray where applicable, the original packaging and any purchase receipt. These numbers should agree where they are available. A mismatch may indicate a replaced housing, repaired logic board, incorrectly labelled box or a phone that was not obtained as described.
Do not publish a complete IMEI or serial number in a public marketplace listing. Share those details privately only when necessary, and avoid sending a deposit merely because a seller provides a clean-looking number. A serial lookup cannot confirm that the person offering the phone legally owns it.
Clear Activation Lock before money changes hands
Activation Lock is one of the most important checks for a second-hand iPhone. It is connected to Find My and the previous owner’s Apple Account. If the phone remains linked to that account, you may be unable to activate it after purchase, even if the device looks perfect and the IMEI appears clean.
Ask the seller to back up their data and erase the iPhone in front of you. The usual path is Settings > General > Transfer or Reset iPhone > Erase All Content and Settings. The seller must enter their Apple Account password if Find My is enabled. After the erase, the phone should display the Hello setup screen.
Continue through the initial setup using Wi-Fi, but do not add your own Apple Account until the phone has passed the other checks. A genuine, unlocked phone should allow setup without requesting the previous owner’s Apple Account. If a message says the iPhone is locked to an owner, stop the transaction and ask the seller to remove it properly.
Do not accept a promise that the seller will remove Activation Lock later. Apple generally will not remove it for a new buyer without appropriate proof of ownership. The handover should finish with the old account removed, the phone erased and the device ready for you to activate.
Inspect iOS, parts and physical details
A real iPhone should run a normal version of iOS and provide access to the App Store, Apple Account settings, FaceTime, iMessage and Software Update. Open Settings > General > Software Update and check whether iOS recognises the device. A phone that presents unusual menus, asks you to install an Android app store or cannot connect to Apple services may be counterfeit or seriously modified.
On supported models and iOS versions, open Settings > General > About and look for Parts and Service History. Depending on the model, iOS may identify the battery, display, cameras or logic board as a genuine Apple part, an unknown part or a component that cannot be verified. An “Unknown Part” warning does not always mean the whole iPhone is fake, but it is a reason to investigate and negotiate a lower price.
Check the model number against Apple’s technical specifications. Look at the camera arrangement, port, buttons, speaker openings, SIM tray and screen edges. A model advertised as an iPhone 15 should not have the physical features of an iPhone 14. Poorly aligned text, a thick bezel, a low-quality camera preview or an Android-style notification panel are strong warning signs.
Test Face ID or Touch ID, cameras, flash, speakers, microphones, vibration, buttons, screen brightness, Wi-Fi and Bluetooth. Check the display across a white page for dead pixels and touch the entire keyboard area. Genuine status is less important than reliable operation when a replacement part has been disclosed honestly, but hidden faults can quickly erase the saving from a cheap purchase.
Check the battery and network functions
Battery health is valuable information, but it does not authenticate an iPhone. Go to Settings > Battery > Battery Health & Charging and review maximum capacity, peak performance messages and any service warning. A battery at 80 per cent may be acceptable at the right price, while a phone that suddenly shuts down or shows an important battery message needs closer attention.
Australian buyers should check both physical SIM and eSIM capability when it matters. In Settings > General > About, look for Carrier Lock. “No SIM restrictions” indicates that the phone is unlocked. You can also insert your own SIM or use a temporary eSIM activation only after confirming that the seller has erased the handset and that your carrier supports the model.
Network compatibility can vary between Australian carriers, particularly with imported models. Confirm that the exact model supports the relevant 4G and 5G bands used by Telstra, Optus or Vodafone, and check whether the device was intended for another region. A US model may use eSIM differently from an Australian retail model, while some regional variants have different SIM arrangements.
Ask your carrier whether the IMEI has been reported lost, stolen or blocked, and use a reputable Australian IMEI checking service where available. These checks are not a complete guarantee because status can change after the search. A phone that cannot connect to your SIM, shows “No Service” after a reset or has an unexplained carrier restriction should not be purchased without written proof of resolution.
Verify the seller and the phone’s history
Ask for a dated receipt, proof of purchase or repair invoice. The name on the receipt does not have to match you, but the seller should be able to explain where the phone came from and why the details make sense. A vague story, unusually low price and pressure to pay immediately are more significant together than any single cosmetic flaw.
Search the IMEI and serial details privately, then compare them with the handset in front of you. Do not rely on a box alone; packaging can be swapped, and a genuine box can be paired with a different phone. If the seller says it was repaired, ask whether Apple, an Apple Authorised Service Provider or an independent repairer performed the work.
Australian consumer protections depend on who is selling the device. A business selling a used iPhone generally has obligations under the Australian Consumer Law, including that the product matches its description and is of acceptable quality. A private sale through Gumtree or Facebook Marketplace usually offers fewer practical remedies, so inspect the phone before paying and keep the listing, messages and receipt.
For a local handover, choose a busy public location with Wi-Fi and power, such as a shopping centre or a staffed venue. Some Australian police stations provide designated safe-trade areas, although availability varies. Avoid paying a deposit to reserve a phone you have not inspected, and do not let a seller rush you because another buyer is supposedly waiting.
Use a deliberate handover checklist
Begin by matching the phone to the listing: model, storage, colour and physical condition. Confirm that the serial number, IMEI and model information are consistent. Photograph the handset and receipt for your own records, while keeping sensitive account details private.
Next, have the seller sign out of their Apple Account, disable Find My and erase the phone. Watch for the Hello screen, then connect to Wi-Fi and move far enough through setup to confirm that Activation Lock is absent. If the device asks for the former owner’s credentials, stop there.
Test the screen, cameras, Face ID or Touch ID, charging port, wireless charging if supported, speakers, microphone, Wi-Fi, Bluetooth and mobile connection. Review Battery Health, Parts and Service History, Carrier Lock and available storage. A ten-minute inspection can reveal faults that photographs and seller assurances conceal.
Finally, pay only after the checks pass. For a private transaction, use a payment method that gives you a clear record, but remember that a transfer receipt does not create a warranty. Keep the listing, seller messages, IMEI record, receipt and any written promises about repairs or battery condition.
Use this process every time you buy a used iPhone, even when the seller appears trustworthy or the phone is being sold by someone nearby. Check the identifiers, remove Activation Lock, test the hardware and verify the network before handing over your money. Those few steps provide the best protection against a counterfeit handset, an unusable device or an expensive repair bill.