I am a newbie, but i learn to mod psp's.First, this guide is ONLY FOR THOSE WHO HAVE A FAT PSP. To mod a psp, means to make the psp capable to run isos from MS.What do u need: -a psp with ofw 1.5 or another ofw's(u will se what do u have to do if u have 1.5 ofw) -a Memory Stick less then 1 GB recommended if u have ofw higher than 1.5 -A spare Battery, if u hardmod the psp. FOR OFW HIGHER THAN 1.5: -TOTALNewbi easy installer.you can find it here: -After you download it, u must run START command.Follow the instructions to logiccaly format ur psp.Then, when it appears u a menu including 5 choices, I recommend u that : Step 4.After it finished all stop ur USB connection, take the MS out, and shut down ur psp.Now is a hard part:u have 3 choices: -The most simple one is to buy DATEL TOOL Battery.It cost around 50 dollars -If u know someone with custom firmware, u can say to him to download this : Then say to him to follow what it is saying there on the Installing paragraph to make a Magic MS and a Pandora Battery.He wont be able to use his battery and MS.Say to him to borrow u The Pandora Battery and Magic MS.Then , when u have those, do what is written in downgrade/unbricking FAT PSP's. -The hardest choice is to hardmod ur psp, u can do this by cutting the 5th pin of the battery. If u decided to go on the 1st or the last step, u must do this: Insert the MAGIC MS in ur PSP, then the Pandora Battery.Then press X.After all is complete, Take out ur Pandoras Battery, and insert a normal one. Enjoy ur modded PSP! IF U HAVE 1.5 OFW, U MUST UPDATE TO A CFW. I recommend 3.71 m33-3.