First of all, please make sure you have turned on the device which you want to add to your account. After the yellow indicator light becomes stable, it will go online normally.
Please log in to the APP with your username, then click List at the bottom of the interface, then click the plus sign in the upper right corner of the list interface, and enter the device ID and ICCID of the SIM card according to the prompts to bind the relevant device.
How to add a device to your account
First of all, please make sure you have turned on the device which you want to add to your account….