5.50GEN D(full)+prom-4 mod problem

[J.C.]

i have some issues that i would like to fix with the help of you guys:
-psp freezes when leaving a game (iso / cso) so "home" -> yes
-cant play a few homebrews when i start the homebrew the only thing that shows up is a black screen (pspkvm, psptube,...)
-sometimes I have the problem that I cant open the "recovery menu" or the "VSH Menu".
-certain codes do not work on my PSP=freeze (iso-us-> us codes and I put the codes at 15Hz)
eg.:
# MOHH2 Universal Car Skywalker Crouch
; By RTCFlash
0xFFFFFFFF 0x006286DC
0x00000290 0x01020345
and others)

hopefully you can help me =/

Can I fix this or should I better change my CFW, if so, wich cfw should i change to 6.39me-6 or 5.00m33 or...

psp info:
-psp 2004
-TA-088 v2
-5.50GEN D(full) with prom-4 mod

[no name 4 u!]

i would just change firmware.im using 6.20 pro b-5 on my 3000 which doesnt need prometheus.m-33 requires pandora battery but me-6 iis easy to install as you run it right from the game menu but i don't know if it has iso/cso support(though i think it does).
so yea switching firmware is my recommendation.
oh and the problem your having with the codes is probably the fact that they do not work or something i don't know about

[Tipped OuT]

Use 6.39 ME-6 CFW.

6.20 PRO LCFW is useless for a fully hackable PSP.

Just Google the update, and install from 5.50 GEN. You can do everything you can on GEN +more, and without patches or workarounds.

[J.C.]

k i'll try that thanks tipped