Every mobile phone has a unique 15-digit IMEI (International Mobile Equipment Identity) number. Based on this number, you can check some information about the device like brand or model. Also, you can check SIM lock status of an iPhone with IMEI number.
How to Check SIM Lock Status of iPhone
-You can find your device’s IMEI number by dialing *#06# or on your iPhone you go to Settings > General > About. -Now, go to the free web service IMEI.info (preferably on your computer) and enter your IMEI number in the box. Click “check”.
– The service will list your device’s information. At the bottom right of the page, click on “Free Simlock status check”.
– The website will check your IMEI against the database of factory unlocked iPhones and will let you know whether your iPhone is officially unlocked or not. Additionally, it tells you about the warranty status of your device. [Via]
How to Check SIM Lock Status of Samsung Galaxy S3
Type the code *#7465625# or *#SIMLOCK# on the keyboard of your phone. It’ll display various lock status information of your phone. This method should work on all other Samsung Android handsets.
