※Note: this article's contents are only applicable to our Unlimited data (e)SIM products; kindly check the product you purchased before following the instructions below. 

Even if your device does not support 5G, rest assured that as long as your device supports au by KDDI 4G LTE network with LTE bands B1, B18, and B26, then you will have no issue using our Unlimited data (e)SIM.

For Android Devices:

You may experience connection issues using the standard APN setting written on the manual; please try the following LTE Specific APN setting below.