Does your iPhone have an active Find my iPhone blockade? What is the status of the iCloud on your iPhone? Can you buy a used Apple device without risk?. Service allows you to Check Activation Lock Status. If you don\'t know if your FMI (Find My iPhone) is ON or OFF just check it by IMEI. Type your device IMEI number and check if it\'s iCloud is ON or OFF.. Before you purchase an iPhone, iPad from somebody else, make sure that Find My iPhone Activation lock is turned off and the device is ready for you to use.