PSP FAQ - How Do I Update My PSP Firmware?

There are a few different ways to update your PSP's firmware. We breakdown all the ways to update your firmware here to save you time.

Updating The PSP System Software to 6.60 / 6.61 - pspunk

PSP firmware 3.50 enables full 333MHz clockspeed

White Sony PSP-1000 with 100+ Games - Japanese Version

How To Update Your PSP TO 6.61 Official Firmware in 2021

I just turned on my custom firmware psp and it isn't reading the iso files anymore even tho it was working fine the previous day. Any help is much appreciated thanks

New PSP Firmware Expands Internet Radio Feature

Release: Infinity 2.0 – Enables Permanent 6.6x Custom Firmware for all PSPs!

What is the best way to update a PSP via USB? - Quora

PSP™ (PlayStation®Portable) User's Guide : SCEI : Free Download, Borrow, and Streaming : Internet Archive

I found my old Psp, should I update it to jailbreak it or will it work on old firmware ? : r/psphacks

Unbrick PSP Models 3000, Go, and 1000: Recovery Guide for 2023- Dr.Fone