Now that you have the IMEI of your iPhone it’s time to check the ESN. IPhone 7 and 7 Plus: On the SIM card tray IPhone 6S and 6S Plus: On the SIM card tray
IPhone 6 and 6 Plus: On the back housing of the iPhone IPhone 5, 5C, 5S: On the back housing of the iPhone In addition to using the settings function on your iPhone, the IMEI number will be physically located on your device as well. IMPORTANT: Any device with a bad ESN for any of the above 3 reasons will cause the iPhone to not be able to be activated on another customer’s carrier account. Otherwise, the device will still have a bad ESN (because it is still reported as lost) and will not be able to be activated by another user. Hint: If you lost your device, and reported it as lost to your carrier for insurance purposes, but then found the phone again – you need to call your carrier back and let them know you found the phone. What makes an iPhone have a bad ESN?Īn iPhone can have a bad ESN for multiple reasons: Very confusing, I know! Now, I’m sure you are wondering what a bad ESN even is. ESN stands for Electronic Serial Number and is another name for the IMEI number.įor the purposes of checking if your device has a clean ESN, the IMEI number is what should be used.