Eisengrim

That did the trick, thanks for the explanation!

Is there a trick to getting the .rom files to play? The .xex versions work although sometimes I have to change to 800XL or 130XE to get them to run right. However, the rom for Fast Food goes to Memo Pad if machine type is 400, but goes to a Self Test screen if set to 130XE. I also tried changing the .rom to .c02, with the same result (I have no idea if this is a cartridge image that needs a change like this).

I bought a newer Logitech Unifying Receiver, one with "Logi" instead of "Logitech" written on it. It doesn't work either. When my K780 is connected to my computer, in Logi Options "Logi Unifying receiver" is black and selectable, while "Logi Bolt receiver" and "Logi USB receiver" are both gray. When I put the dongle in the 400 mini all options are gray and can't be selected. Can anyone with a working Logitech setup please tell me what they're seeing on their Logi Options screen?

I was able to finish the game with no ECS or Intellivoice attached. Maybe a conflict with one or both of those components?

Also - my K780 is from 2018. Did they maybe change receiver tech so that new ones work and old ones don't?

Could you tell me more about what isn't working for you? I'm not sure what you mean by "bolt or standard non unifying dongle".

Getting a new unit didn't help. I returned the original and received a replacement today, and it also will not work with the K780 or K400r or K400+. Three wireless keyboards and two 400 Minis and no combination of console, usb dongle port, or keyboard model works. Double checked my A500 mini and it just works right away. Shame this doesn't. In fact, through all my experimenting, I'm finding that putting the Logitech dongle, or a wired keyboard, into Jack1 and the Joystick in Jack4 causes problems. I can use the joystick to select games, but then the stick stops working in the game. I can back out to home and the stick works again, but only for the carousel. This happens to both the 400 minis I currently have. Is there a problem with the USB in these systems?

Has anyone had Raiders of the Lost Ark lock up on them? Twice now I've gathered lots of items and made it the lower mesa or map room and Indy just locks up and won't move. I can select items, and the flute will play, but I can't progress in the game and have to reset. I'm playing on an INTV-II with ECS and Intellivoice attached.

I also have a K400 and a K400+ that I tried, each with their own receiver that I know works on PCs. None of them work with the 400 mini. Is this a defective unit? I don't know how a USB port would work for joysticks, keyboards, and thumb drives but not for all these wireless keyboards.

I've tried my K780 with unifying receiver indirectly through a switch that goes from wireless to wired USB connections to multiple devices and the 400 can't see it. I've plugged the receiver directly into the 400 and that also doesn't work.

I use a Logitech K780 keyboard that is wireless to a relay and then USB-A to a PC, and this setup works great for my A500 mini so I just use the one keyboard for A500 and for my PC. I figured the same setup would work with my new 400 mini, but it doesn't. I need to plug in a full USB keyboard to be able to type. Has anyone had success with wireless keyboards on the 400 mini?

Tonight Papa Pete said roms were starting to be sent out.

Definitely - I found myself watching the clouds more than the jumping!

I think the initial purchase is just the cartridge. ROM only comes if sales of 100 are reached.

Ordered - I hope we make it!