How can I downgrade my psp 3004 and get a custom firmware?

Q. So I need to downgrade my psp (now I have version 6.20) and get a custom firmware, but is that even possible with model 3004? I don't have pandora battery so I have no idea what to do.

A. Pandora does not work on your PSP model anyway because of an encryption present on the initial load process (IPL), which also blocks the ability to install a custom firmware to the internal memory.

however, there is a homebrew loader called the Half Byte Loader (HBL), and it works on all firmwares to date (up to 6.20) that are capable of running the Patapon 2 Demo.

it can only load small applications for now but rest assured it's being worked on every day by it's creators, and has it's own website too.

i would recommend to you visiting www.psp-hacks.com

How can I downgrade my psp phat without a pandora battery?

Q. I have a the psp-1001 and it is running on ofw 5.51 and i want to downgrade it, so i can install cfw.
Can anybody help?

A. You don't need to downgrade. Use chickhen(the one they use on psp 3000) then you can install any CFW.
http://pspaikousha.blogspot.com/2009/07/custom-firmware-enabler-360-for-503.html

can I save levels I build in littlebigplanet psp if my start button is broken?

Q. I got a free psp 2001 from a friend, but the start button won't work, and I can't figure out how to fix it. I really want to buy LBP psp, but only if I can create my own levels and save them. Is it possible to save level's I create without a functional start button?

A. No, im not sure its possible, but you can try taking the psp apart following an online guide(incase you might break something) and fix the start button, should be simple really

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