This new firmware update rectifies the following issue:
1.) Not charging with the Apple 18W USB-C charger
2.) Audio/USB devices can not be hot-swapped without removing and reinserting the HyperDrive.
However, the current firmware update app is the Windows Application. But, we're also working on the iOS firmware app, and will send update to customers once it is completed.
Here is the video link for firmware upgrade.