How to Upgrade Your PSP Firmware

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You see all these topics on how to downgrade a PSP, but have you ever considered upgrading? If you like some of the new features Sony has released in firmware, this might be the place for you. This Topic is on how to upgrade your PSP firmware with a USB Cable

Steps
1. Get the firmware upgrade data. You can get one on the official PSP website[1]. When clicking Download Now, remember to Save it, not open it. The file name should be EBOOT.PBP Save somehwhere where you can access it easily e.g. Desktop, My Documents, C:\.
Here link
http://www.us.playstation.com/psp/downloads/systemupdate


2. Plug in your USB cable that you have bought or had to your PC or Computer (same thing). On your PSP you should go to System Settings and on the 2nd from the top press (X) on USB Connect. On your computer it should say something like New Hardware detected USB Mass Storage Device. In My Computer there should be something named "Removable Disk"
3.
Click on the Removable Disk and inside there might (might not be) be a folder named "PSP". Click on the PSP folder to go inside of it and inside the PSP there might be a subfolder named "GAME".

4.Inside the GAMES folder, create a new folder and name it UPDATE in caps, no spaces. Inside that UPDATE folder drag and drop that EBOOT.PBP that you downloaded earlier.

• If the PSP folder and GAME folder are not there, you can just create them. Remember that the folder name MUST be in CAPITAL LETTERS and the the GAMES folder is INSIDE the PSP folder, don't mess this up or your PSP will ignore your folders

5.
"Safely Remove Hardware" -- this should be in your Icon Bar on the Right side of your start bar.

6. Fully charge your PSP and plug it into the wall. Go to the Games Area; there should be an Icon that says Memory Stick Choose that by Pressing "X" and you'll see PSP Update Version *.** (* meaning what version you've downloaded onto your PSP).

7. Press PSP Update Version *.**, It'll clear the screen for a few seconds and come back on saying "PSP System Software Version *.**" It has a "Start" option or says that you already have that version. Press the Start if you want to upgrade.

8. Go through the User Agreement and start the upgrade Process. When it starts, remember not to even touch that PSP. Just leave it alone on the floor, desk , chair, etc.

Tips
Remember to fully charge and plug your PSP into the wall. If you don't, you might get the battery glitch and trash your PSP forever.
Make sure when creating folders to name them in Capital Letters To rename, just right click folder, Rename

The Update Process may take a few minutes, maybe 2-5 minutes, try not to do anything to your PSP while updating, including disconnecting from the power outlet in the wall, turning it off, etc.

Many people Downgrade their PSP to version 1.5 in order to upgrade to higher version such 3.51,etc.Because with a refresh PSP with a version 3.03 or above,you can run a lot more games and software applications without restriction on it.Learn how to Downgrade Your Psp to Version 1.5 Using Your Psp Battery

Warnings
Don't turn off your PSP while it's updating or it might break.
Depending on what firmware you're updating to, doing this may forfeit your ability to downgrade it - and run homebrew - again, for a long time.