Stuck With 3.03 - Help

[Bl4ckn1ght11]

Last night I unknowingly upgraded to 3.03 in a desperate attempt to get a Final Fantasy game to play on my PSP, then after some researching I found out how stupid of a decision it was. Is there any way to get out of 3.03 and into a custom firmware without paying $20 for the unpatched version of GTA?

[canadianbacon]

Last night I unknowingly upgraded to 3.03 in a desperate attempt to get a Final Fantasy game to play on my PSP, then after some researching I found out how stupid of a decision it was. Is there any way to get out of 3.03 and into a custom firmware without paying $20 for the unpatched version of GTA?

3.03 - GTA
3.11/3.50 - Lumines

Or make/buy a pandora's battery.

[Bl4ckn1ght11]

Alright, I'm going to try to make Pandora's battery then; doesn't look too difficult.

[psp4lyf]

check this guide it will tell you how to downgrade with lumines, click 0n "3.10 - 3.50 Any Motherboard"

[Guide] The Ultimate Downgrader Guide - [All Downgradable Firmware] - QJ.NET Forums

[Bl4ckn1ght11]

I just watched a tutorial video where the person converted his battery into a jigkick without actually opening the battery up and was able to downgrade to 1.50, however he said it requires custom firmware. Can anyone confirm that it does or can it be done with any firmware? He used Pandora's magic stick installer.