Tremendous progress has been made on advanced Pandora batteries (Baryon Sweeper) for the PSP with basically support for all models nowadays. PSP Go was one of the last models to not be supported, but
PSP GO blue screen of death - The Independent Video Game Community
I bricked my PSP : r/PSP
PSP Release: Baryon Sweeper lets you unbrick PSP 2000/3000, Pandora battery style
How Unbrick My PSP witout Pandora's Battery, a second PSP, or card reader?, Page 2
Has anyone tried this PSP mail-in unbricking service? : r/PSP
trying to make a pandoras battery, what do i do from here? : r/PSP
PSP: Unbricking PSP 3000 via BaryonSweeper Pandora Battery!
My first Baryon Sweeper : r/PSP
Setting Up & Talking About Pandora's Battery: The Legendary PSP 1000/2000 Unbricker
PSP: Unbricking PSP 3000 via BaryonSweeper Pandora Battery!