Member of the team KuciMods West-Li released PRXUnbricker v1.0.1.
PRXUnbricker is program for PSP which can UNBRICK your PSP. This is only for SEMIBRICKS.
How to Repair index_0Xg.dat:
1. Download PRXUnbricker
2. Open and extract files from RAR
3. Go to RECOVERY Menu and select "Toogle USB"
4. Copy folder PSP to ms0:/
5. Copy folder index_0Xg.dat to ms0:/seplugins
6. Disconnect PSP from PC
7. In RECOVERY Menu select "Run Program at ms0:/PSP/GAME/RECOVERY/EBOOT.PBP"
8. Choose Repair index_0Xg.dat
9. Enjoy!!!
How to Repair Flash1:
1. Download PRXUnbricker
2. Open and extract files from RAR
3. Go to RECOVERY Menu and select "Toogle USB"
4. Copy folder PSP to ms0:/
5. Copy folder flash1 to ms0:/seplugins
6. Disconnect PSP from PC
7. In RECOVERY Menu select "Run Program at ms0:/PSP/GAME/RECOVERY/EBOOT.PBP"
8. Choose Repair Flash1
9. Enjoy!!!
Download
Source