This is the initial release of our custom firmware. We completely reverse-engineered 3.10 OE, updated all the tweaks for version 3.40, and added our own sexy patches.3.40*'s features:* Everything you know and love from 3.40 OE-A* Sexy new SCEP-style recovery menu* In-XMB configuration menu* Auto-detection of the kernel needed for homebrew - no need for GAME150 and GAME340; just put it all in GAMEInstallation GuideLook inside the ZIP file for the folder that corresponds to your current firmware - either Custom Firmware or Firmware 1.50. To install 3.40*, you have to be on one of these. If you're not already on one of them, what are you waiting for? Downgrade!Copy the *CONTENTS* of the MS_ROOT folder onto the *ROOT* of your memory stick. This means the place where the 'PSP' folder is. It'll probably tell you that it has to overwrite the PSP folder. This is OK; just click Yes.Download the 1.50 and 3.40 firmware EBOOTs.Rename the 1.50 EBOOT to 150.PBP.Rename the 3.40 EBOOT to 340.PBP.Put both of them *in* the folder "X:\PSP\GAME\Wildcard All-in-one Flasher", alongside the EBOOT.PBP file. (X: is your PSP's Windows drive letter.)Go into the PSP's Game menu, under Memory Stick, and run "3.40* All-In-One Updater". The installer will build the 3.40* DATA.DXAR file, then launch the flasher to install it. Follow the instructions on the screen TO THE LETTER and you'll be safe.NotesThe new DATA.DXAR file will be placed in the root of your memory stick; feel free to delete it or save it for later once you've installed.None of the installer files need to stay on your memory stick once 3.40* is installed. You can delete them all.