the device needed to flash a BLF GT4?

Hello and sorry if I missed this, I searched and saw pictures of a device but no link to buy one.

I’m looking for a link to what I believe to be a USB dongle to connect to my recently acquired BLF GT4 to change from whatever this wrong software is back to the normal (I guess its called Andruil)

Texas ace pointed out that andruil hasn’t been created for the GT4 yet but ill cross that bridge when we get there.

This will become the “how to flash your GT4 back to correct” thread once I get the dongle anyway

Do you know where to get the dongle?