I am on 5.00 M33-6 and I used eDecrypt v1.3.
Below is a step by step on how I completed it. It might be long BUT it is easy and I believe I have covered each step that needs to be done individually and that is why it seems so long. It only takes a few moment to complete
1. Open UMDGen v4
2. Place the Little Big Planet iso on your desktop (Just for convenience)
3. Drag an drop the ISO onto the white area in UMDGen on the right hand side
4. Click File - Filelist Export
5. Select your Desktop and type Filelist (Can be any name you want)
6. Click Save
7. Click the + to the left PSP_GAME in UMDGen
8. Click on SYSDIR
9. On the right hand side click RIGHT Mouse click EBOOT.BIN
10. Left Mouse Click Extract Selected
11. Select your Deskop
12. Click OK
13. Connect your PSP to your computer
14. Place eDecrypt into PSP\Game\
15. Create a folder on the root of your memory card called ENC
16. Copy the EBOOT.BIN from your Desktop to the ENC folder on your PSP memory card
17. Disconnect PSP from Computer and start eDcrypt like you would any game
18. When prompted press the [] button on the PSP
- It should then state it found a file and how big it is before being decrypted
- It also tells yo how big after and if it was successful decrypting
- It also should state that a patch was successfully applied
- If you do nto see this either somethign was done wrong or try the process again
19. Press X to return the PSP Menu
20. Connect the PSP to your Computer
21. Copy the EBOOT.BIN from ENC\DONE to your desktop (save over the one you previously extracted)
- You can delete the EBOOT.BIN from the ENC folder
22. Drag and Drop the EBOOT.BIN from your desktop into the PSP_GAME\SYSDIR in UMDGEN
23. Answer YES to replace
24. Click File - File List - Import
25. Select your desktop and then double click the filelist.txt file you exported earlier
26. Answer YES to the question that appears
27. Click SAVE and either select COMPRESSED or UNCOMPRESSED
28. Select your desktop and create your own name "Little Big Planet Decrypted"
29. Click Save
30. Now copy the newly created file to your ISO fodler on your PSP memory card root
That should do it. It worked for me fine doing this.
Good Luck
P.s. Note that if you have a CSO file have have had issues when using this method and had to uncompress the CSO file back into a ISO file first. Sometime you will not be able to save properly if you start with a CSO OR it will save but when you start the game on the PSP you will get another error.
To converts CSO to ISO:
1. Open UMDGen
2. Drag an drop the CSO onto the white area in UMDGen on the right hand side
3. Click Save - Uncompressed (*.iso)
4. Select Desktop (or whereever you wish to save the file)
5. Give it a name and click save.
Then with the newly created ISO file follow the first lot of steps above - though there is a chance you will just get a different error when you have finished and start a new game. It aldepends on if the game iso / cso you have is compatible with eDcrypt v3.