Check the IMEI by dialing *#06# and match it with the box and settings
Verify the IMEI on Samsung’s official warranty or support website
Inspect the build quality, logo, and finish for any flaws or misprints
Check the display quality, brightness, and touch response
Open Samsung Members or Samsung Pay to see if they work properly
Confirm the software is official Samsung One UI, not a modified interface
Check the model number in Settings and compare it with Samsung’s official model list
Test the camera, speakers, microphone, and fingerprint sensor
Look for Samsung Knox status in device security settings
Compare the packaging, accessories, and manuals with official Samsung packaging
Buy only from authorized Samsung stores or trusted retailers
Check the serial number and warranty status on Samsung’s official support page
Use Samsung’s Find My Mobile or Smart Switch to confirm device compatibility
Verify that the phone receives official Samsung software updates
Check for signs of tampering, such as loose parts, uneven gaps, or missing seals