1. first u need to get something called "prx decrypter" which could be found at:
http://dl.qj.net/dl.php?fid=15388
and paste it in ur game folder in ur psp.


2. then go to ur psp's recovery mode (shut down ur psp and and boot it up holding R trigger) and go down to "advance", and then go to "toggle usb (flash0)" and have ur usb cord attached and something should open up on ur computer.(sorry cant get screenshots of me in recovery mode i just realized)


3. then open up the "kd" folder and look for a file named "vshctrl"



4. then copy and paste that "vshctrl" file to ur desktop or wherever u wont forget where it is at, then get out of recovery mode.

5. then go to usb connection and in the root of u psp's memorystick make a folder named "enc" and place that "vshctrl" file in there.

6. after that run the prx decrypter and it will give u 3 options so just press x and it will decrypt it. then when it is don press triangle to exit.




7. then go back to usb connection and go to the "enc" folder and copy the "vshctrl" file and save it t somewhere u wont forget like at ur desktop.

8. then u need to get the hex editor to edit it at:
http://bpsoft.com/downloads/download.jsp?dlfile=hw32v423.exe

9. then open up the hex editor and in it open up the vshctrl that u decrypted and look for this in the hex editor:


10. i will change that to "3.90 OEA"


11. then hit file and save as and save it where u will remember.

12. then go back into recovery mode in ur psp and then advance and then toggle usb (flash0) and place the vshctrl file u just edited in the kd folder and when it asks you to overwrite the file already in there say yes, then turn on ur psp go to settings, system settings, and then system information and u should see this:


p.s.if this is tooo confusing for u just aske me and i will make u one.

It just edits the text of the firmware right? No actual 3.90 OE-A? Just want to make sure.

yup. just the text

i wanna learn how to change what the rest says like mac address i wanna make it say ip address or somethin, and nickname to say tagname

i have no clue how to do it could somebody help me and is it only for slim or for both

i am not sure for slim
but it works fine on phat

well can u do it for me cause i have no clue how to thanks

what u want me to change it to??

well i have a regular update 3.90 i want a custom one M33 one

ohhh...so you don't have cfw!!! this is just to make it look like something else..you need cfw to use this. look at the how to make a pandora batt and how to make a magic mem stick tuts

i did make that but i cant go to the pandors battery meun.it says the game could not be started

ummm
well it is not really a pandora battery menu
it just puts ur psp into service mode
ur not supposed to start any games
it starts it automatically

ok thanks for that now how do i get the latest M33 firmware.i have a normal 3.90 i want the newest M33 custom one

well pandora will do that for u

you got the "magic" mem stick made? you need that