There was somplace where they copied the dashboard files from 1888 iirc, could load into the blades dash, buggy and would crash tho, there's no use in downgrading, don't expect to use it for playing games, unless they came out before 2006-7, it was only ever a thing in the early days of kk exploit and jtag before 2bl was finally updated, before you could dump cpu key, update and still play online newer games stock, then downgrade back to use kk exploit