PSPUAE-v2 Beta 13, based on uae4all2 HD VITA.

If you get blank screen after splash, press SELECT, then under KICKSTART ROMS, select a kickstart.

Default rom is 1.3 256KB version. It will auto identify roms by their CRC32.

If you decide to overclock PSP CPU, if it doesn't boot. 

Go to CONFIGS folder and edit overclock.cfg and change it to 333, save and try again.

Set clock one lower than failed boot, then try again.

I have capped overclock for ARK-4 / 5 Firmware users. There is a bug, that locks up PSP for 30 seconds at random.

I found the capped clock value of 383MHz, solves this issue, 403MHz and 443MHz are unstable on my go.

My Phat and 3000 work at full clock without issues, as they use 6.60 PRO C.