I was trying to delete some of my games and it wouldn't delete and I did the stupid thing of formatting the memory card and when it restarted, vitashell was gone along with everything else so I couldn't really do anything with my vita even though it is on custom firmware already. This can help if you're in a situation like me.
Guide here: https://psvitamod.com/vitashell/
Watch video If you deleted VITASHELL on your hacked PS Vita, DO THIS.. online without registration, duration hours minute second in high quality. This video was added by user Grown Up Gaming 29 June 2023, don't forget to share it with your friends and acquaintances, it has been viewed on our site 1,879 once and liked it 24 people.