Need Help Downgrading

[faster154]

My friend wants me to downgrade his psp.
He has 3.03 but doesnt have GTA.
Is there a way to downgrade withought using that form of method.

Once i downgrade his i will make a pandora battery and downgrade mine then put custom firmware on them.

What is the Easiest way to make a pandora battery.

[pspowl08]

Do a hard Mod. There should be a guide under the Guide section of this same Forum page. 

You can also do a Magic memory stick.  Despertar El Cementerio V4 installs 3.80 M33

[P3nnyw1se]

or if you can get a copy of lumines original, use it to do the 3.50 downgrader w/ HEN.

[Thorax]

I would recommend using Lummines. It worked for me every time I did it. Update that PSP to 3.52M33-3, then update to 3.80M33-5. Then make a magic memory stick, using Despertar El Cementerio. The memory stick is the hardest part to learn, but after you have done it once, it will be easy to do again if you ever need to. After the memory stick is created, download the 1.50 addon for 3.80 and downlaod the origanal Pandora battery maker. Run it on a battery and your all set. If you need help with Pandora, post in the Pandora section.