Do you have a PSN account linked to your vita?
QCMA normally ignores new updates, there is an option to disable it, maybe it's not enabled?

 

I do have a PSN account linked. Tried messing around with some settings in QCMA but I still get "You must update the system software of this system" when I try to connect it to my PC via a wired connection. Wireless just can't connect to the network at all, despite the fact that the Vita is on my WiFi.

 

you need to disable wifi on your vita, and reboot it.

also enable offline mode in qcma and restart it.

now you should be able to connect

 

what you're supposed to do is the following:

backup your original psp game,

unpack it with psvimg

put the pboot inside the folder of the unpacked game (keep both: the eboot and pboot in there)

pack the game with psvimg.

there is a psp savedata in a folder called "ARK_01234" put it in your qcma directory/PSAVEDATA/0000000000000000/ (000... beeing your aid)

refresh the qcma database (or simply restart qcma)

then restore the ark save data to your vita (do this BEFORE transfering over your patched game)

transfer your game to the vita

done, now you have the ark bubble on your homescreen

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i attached the ark savedata to this reply, i know it works for sure since i used it to setup ark on my friends vita a while back.

 

for PSX: ark can run psx eboots when set to "pops" mode. but they wont have sound as far as i know.

any signed psp emulator/homebrew should work with this, and maybe even some unsigned ones.

 

np, the PSP required homebrew to be signed (or at least back when m33 was a thing)

that pretty much means that the PSP's firmware detects the signed homebrew as if it was a legit game(through certain cfw hooks of course). and would just error out if it's unsigned.

but pretty much any homebrew you can find should be signed, because otherwise it would be useless (i think. that might have changed with the latest psp cfw)

 

all you need to do is transfer them over and run them.

oh i almost forgot, to transfer the iso's you have to rename them to: maximum 8 letters, and full caps including the extension. example: XXXXXXXX.ISO

then put the iso in a psp savedata folder and transfer that to your vita using, again, the content manager.

then in ark, navigate to that folder und select the iso

 

afaik you can navigate to the /GAME/TITLEID/ folder and run the p3p eboot.

no need to download an iso if you still have the psn eboot,

 

those are like part1 part2.... archives.

you need to extract them all to a folder and then extract them again to get the iso

 

did you put them in psp savedata folders?