How To Check If A Used Phone Is Refurbished

Buying a used phone can save money, but it also comes with risks. Some sellers secretly repair or replace parts with low-quality ones, which can cause problems later. Here's a simple guide to help you spot a refurbished phone and protect yourself.

 

1. Look at the Physical Details

 

Check the Screws and Gaps

Use a magnifier to look at the screws (e.g., at the bottom). Original screws are smooth, while repaired ones might have scratches or marks.

Press the edges of the screen. If it feels loose or has glue sticking out, it might have been opened before.

 

Waterproof Sticker and Air Seal Test

Remove the SIM tray and shine a light inside. If the small white sticker is red, the phone might have been exposed to water.

For iPhones or Samsung phones, use an air pressure tester. If the pressure is much lower than normal (e.g., iPhone should be ≥500 Pa), it might have been repaired.

 

Screen Color and Coating

Compare the screen color with the phone's body. Fake screens may look slightly different (too blue or yellow).

Swipe your finger on the screen. Original screens feel smooth; fake ones might feel sticky or show fingerprints easily.

 

2. Use Software and Test Features

 

Check with Apps

For iPhones: Connect to a computer and use tools like i4Tools or 3uTools. If the report shows parts like the battery or screen were replaced, it's likely repaired.

For Android: Dial #0# to open a secret menu. Test the touchscreen, sensors (like the gyroscope), and cameras. Repaired phones often fail these tests.

 

Test Key Features

Try setting up Face ID or Touch ID multiple times. If it fails often, the parts might be fake.

Take a photo of a blank wall. If the camera has dark spots or struggles to focus, it might be replaced.

 

Check IMEI and Warranty

Look up the phone's IMEI number (found in settings or on the box) on the brand's website. If the warranty is expired but the seller claims it's "new," it's probably refurbished.

3. Open the Phone (Advanced)

(Warning: This might void warranties!)

Look inside for messy glue marks or uneven soldering. Original parts have neat, machine-made marks.

Check if parts like the battery or camera have matching production dates. Repaired phones often mix parts from different batches.

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