Ok PSPISO / CSO. I installed the devhook .45, I see the ISO file added. I put the game in it and I see the Devhook in the game slot. but it keeps telling me its a broken file.( The ISO/CSO ) I have tried 3 games. Now My PSP is running 4.05, is this the problem>?? I have no clue what I need to do.. Be nice and help my Dumb _ _ _.
If you are running Official Firmware 4.05, you can not run iso,cso or devhook. You need to have a custom firmware.
To downgrade (and get a custom firmware) or unbrick your PSP, you need the Pandora's Battery. There is three ways to get the Pandora Battery.
1. Find a someone who has a Custom Firmware that is willing to let you borrow their psp. You will use their psp to softmod the battery. Meaning using software to make the Pandora. If you willing to do this, follow this guide:
GUIDE
2. Hardmod the battery. Meaning that you have to open that battery up, and pulling out a pin. Note that if you pull the wrong one, your battery would be messed. If you are willing to do this, follow this guide
GUIDE
3. The most safest way, is to buy a premade pandora battery from the internet (use google or ebay).If so, follow this guide or use the same guide on the second step. I recommend buying from DealExtreme for $10.
GUIDE
NOTE : Newer TA-088 motherboards can make pandora battery and TA-088 v3 can not even run pandora.
Originally posted by chenjalen: Thanks for the reply. do we have link on how to unbrick psp, I downloaded 3.90M33 Installer also bought battery service tool.