* 5.50gen-b2 Complete Pack(Install,CXMB,POPS, ULTIMATE VSH) *
1st: Open the pack. You will see 3 folders and "5.50.pbp". (cxmb,PSP,and seplugins) Place the "5.50.pbp" in the root of your memory stick.
2nd: Open the "Game" folder and place the "Update" folder in your "Game" folder.
3rd: Open "THEME" and copy "Call of Duty
W@W.ctf" to your "THEME"
***For other great themes for this firmware please visit my themes thread. Thank you!!!
http://www.pspiso.com/showthread.php?t=466930
4th: Copy the "CXMB" to the root of your memory stick.
(I have also tested this cxmb on 5.50U3R-2 and it works fine.)
5th: Open "seplugins" and copy all the files and the two folders(popsloader and recovery) to your "seplugins" folder.
If you have a pops.txt already add this line:
ms0:/seplugins/popsloader.prx 1
If you have a vsh.txt already add these lines:
ms0:/cxmb/cxmb.prx 1
ms0:/seplugins/vshmenu.prx 1