CFW Guide WARNINGSP 1000/2000 only NO 3000 OR GO! MUST HAVE PANDORA BATTERY RequiredSP 1000/2000 (Early model), MMS , Pandora Battery (TOOL Battery),UMD, 1.Hook your PSP to your computer. 2.Run PSPGrader and make sure that your PSP letter drive is highlighted. -5.00 PBP Is Required in the same folder as the executable and is downloadable from Here 3.Hit Create Pandora Stick and make sure that your don't get any errors. 4.Unplug your PSP from your computer and turn it off. 5.Remove the battery and Hold down the Trigger Button that you set during MMS Making whilst inserting Pandora/Tool Battery 6.When it boots up into service mode install M33-6 CFW 7.Shutoff your PSP when complete,Take out the Pandora and put the real battery in. 8.USB Connection option to connect the psp to pc 9.Download this firmware pack Here (This is the only pack that has actually worked installing Prometheus 10.Download 550 PBP FW File and put it on the root of your MMS 11.Run the executable containted in the firmware pack and choose the Option install GEN-D3 Once done hit O on the psp to disconnect from computer 12.Go into GAME->MC-> GEN-D3 Installer and install GEN-D3 CFW 13.Plug back into computer once done and rebooted and run the exe again this time choosing option Prometheus 3 V1 14.Download 631.PBP and copy to root you should now have on root the 550,631 PBP Fies and the Prometheus Install in the game folder 15.on the psp again going GAME-->MC-->Prometheus install follow instructions and install 16.Reconnect to PC run prometheus 3 V2 Option in the exe install 17.All PBP Files are already on the root so just disconnect and run the install again 18.Reconnect once done and install Prometheus 3 V4 Option from the exe install 19.Run CFW Update on PSP 20.Download Prometheus 3 Manual install and Prometheus 3 V4 Install Automatic 21.extract both into seperate folders and copy the 6xxxmodules folder from the prometheus 3 install to the prometheus 3v4 folder.delete the 631 and 550 files from the folder as they are already installed on the root presuming youve kept them there in Prometheus 3v4 u should now have EBOOT.PBP (THE INSTALL) AND PROMETHEUS 3S 6XXXMODULES FOLDER delete prometheus 3 now and rename the prometheus 3v4 folder to UPDATE. 22.Go into your psp drive and delete the current update and 5.50 prometheus folder in the PSP,GAME Folder and copy over the Prometheus 3V4 Now renamed UPDATE folder with prometheus 3s 6xxxmodules folder to PSP->GAME now on your psp hit circle to eject 23.Run the final update install from your psp 24.Congrats you now have the Most Compatible CFW With Newer Games. NOTE:Untested but in theory and reported if some games dont work on this latest firmware have an attempt at downloading This ISO Loader for the temp hen and copy it to PSP->GAME Then load up the app on your psp and choose your problematic iso.Please Test. Guys not without this installer with all versions i would get a exit error or cannot copy file error this seemed to fix that so enjoy CSO's/ISO's go into the ISO Folder on root Homebrew/Emulators go into the PSP->GAME Folder Enjoy!. A ~Halo-101~ Guide~!