Guides and walkthroughs on how to use the Pandora Battery
Do you want to see what the Pantora battery can do?
Downgrade/Unbrick any PSP via the PC
Things you'll need:
1. Your Pandora battery
2. A genuine pro duo memory stick
-It's been said that anything 4GB or larger will not work due to the way the file system works. Personally, I can't confirm this as I haven't tried it.
3. A package named 14749_TOTALNewbieasyInstallerPandorasmenu. This is about 135MB in size.
May need: 1. Pandora's GUI 1.5
-This is for the IPL if the previous application doesn't function. I don't understand the logic behind it but that's unimportant.
Steps:
1. Boot up your PSP with the memory stick inside.
2. Go to the system settings in the options tab and format the memory stick.
3. Plug in the PSP via USB.
4. Put the device into USB mode.
Note: You may need to remove the memory card from the PSP and put it into a card reader so that your PC can access it. I can't remember if the PSP provides the interface or not as you'll need to specify a drive letter for the memory stick when you reach step 7.
5. Go to your PC and extract the 14749TOTALNewbieasyInstallerPandorasmenu package.
6. Run START.exe. If you're using Vista, you'll have to run it as the root or the Administrator.
7. Follow the instructions given by the application. You may select any option you wish for the firmware or unbricker. If you're using a PSP slim, I'd go with option 3 as it will create the proper PSP slim memory stick.
8. When it's finished, turn the PSP off.
9. Remove the original battery from the PSP.
10. If you've removed the prepared memory stick from the PSP, put it back in.
11. Put the Pandora battery into the PSP.
12. It should boot up automatically and the screen will appear blank.
13. Hit X.
14. Wait until the PSP turns off automatically.
15. Take out the Pandora battery and replace it with your normal battery.
16. Turn the PSP on and enjoy. At this point, you can update the existing custom firmware or do whatever you want.
Alternative:
LinkDead suggested that 3.71 slims can only be downgraded with DA's universal unbricker. This is actually included in the install package I believe which means you can't just flash CFW on to the PSP but that's not a huge deal. He also suggested an alternative instruction set that would replace steps 12-14.
"Pop in the memory stick, then pop in the battery. Your memory stick access light and wifi lights should blink.
Then press SQUARE to backup your NAND. The psp will dump the NAND (takes about 3-5 minutes) and power down.
Pop the battery back out and in. This time press X and it will flash 3.71m33."
Note: If your PSP doesn't do anything after you hit X and walk away, try using Pandora's GUI to just build the IPL on the memory stick. If this doesn't work, start the whole process again. If you still can't get it to function, try a different memory stick. If you still have issues, microwave your PSP.
