Developer West-Li released his PRX Unbricker in version 1.2 which is now compatible with the firmware 6.60 and the PSP go model. Several bugs were fixed and new options added, e.g. the downgrade option.
With prx unbricker it is possible to unbrick your semibricked PSP, so it can be rescued from the semibricked status.
PRX Unbricker has the ability to update the firmware, to downgrade the firmware, repair the index files of the psp, if they are corrupted and it can launch the recovery flasher (Not supported for PSP 2000 TA-088v3 and newer models).
PRX Unbricker isnt compatible with the PSP E1000, every other PSP is supported!
Download: PRX Unbricker v1.2
Quelle: via PSPKing.de