UAE2All2 - Can't get roms to run

[bptbptbpt]

Just installed UAE4ALL v2.0 on my Switch, I think I did it right and accordingly to the instructions (which I can't link but they are on this forum):
-unpacked the uae4all2 folder in the zip onto my SDcard:\Switch folder
-filled the kickstart folder with the two roms, kick13 and kick31 which I checked for their checksum.
-I put a few hdf files in the rom folder.

Now I can launch uae4all2 properly on my switch. I can also select a rom for df0:
But, how do I run it? I tried pressing the + on my controller. I get then one of three things, depending on my selection for the A500 or A1200 setting on the main screen:

- a white screen
- the amiga 500 boot screen (showing the hand with the floppy)
- the amiga 1200 boot screen

But nothing happens: no rom is being loaded/run. I tried 6 different roms and tried switching the a500 and a1200 a bit. E.g: A1200 setting for an AGA game, but A500 or A1200 for an older game.
But.. still nothing more than one of the aforementioned three screens.
How do I proceed?

By the way I ignored the part about NSP injection in the instructions, because I don't know what that is nor could I find more info on it. Could that be the problem? Also I don't know how to run uae4all2 as a game rather than from Album on my Switch (this is mentioned somewhere).

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Edit: also tried to load the hdf as File1 HDD. This results in a prompt screen when I press +. Don't know what to enter in this screen.

 

[kallstrom_74]

i have the same problem

 

[Dungeonseeker]

HDF files are hard disc files, not floppy files. You need to mount them as HDDs and the emulator should boot right into the game.

ADF games are floppy images.

 

[kidkat210]

Nsp injection or the correct wording for it is title override, is the homebrew menu taking over a game/app for full ram access. To preform the title override method to boot homebrew menu with full ram, just hold R and launch a game while still holding R. Most homebrew need full ram access to properly preform.

Also you can set up a game to boot to the homebrew menu without having to hold any buttons. I setup a 5mb or 12mb game to always boot homebrew menu instead of the game