The firmware is the operating system of your PSP. There are several different firmware versions, ranging from 1.0 on original Japanese PSPs and 1.5 on American PSPs to the latest Firmware 6.60.

All firmwares are currently hackable, even the most recent!!! The PSP 100*, 200*, 300*, PSP Go & PSP Street are all hackable using the MEv3/PRO CFW (custom firmware) Look for a guide on hacking your PSP coming soon.

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