[Kostik]

if you hold the config button for a long time in usb mode, writes "test mode active"

 

[Bill Step]

don't know,,but I'd start pushing buttons and see what happens.

 

[Guest]

if you hold the config button for a long time in usb mode, writes "test mode active"

It’s for testing apps you’ve developed to work on the gm platform. I have a programmer friend trying to work on some apps/mods for my gen 1 to force iPod mode to work with Spotify or CarPlay-like features.