prom-4

I own a PSP 2003 model & it's currently on 5.50 GEN-D3 Prometheus-4 It's been quite a long time since I've messed 'round with PSP custom firmwares, psp hacking & whatnot.. And, I've noticed new custom firmwares being released like 6.20 & 6.35 so, I just need to know if I'm able to update to a...

hello, i recently have problems with my PSP 2000, it was 5.50 Gen-D2 at the start. i upgraded it in 5.50 GEN-D3 before installing the 5.50 Prometheus-3 and install the add-on to make it 5.50 Prometheus-4.. (with the help of a Video) after i have successfully change my firmware from 5.50 Gen-D2...