pinky
Retired
I know u can downgrade everything if u have no entry point by way of a hard mod. there's a tutorial on it on temp. I think the important thing is to have the otp. it's what can decrypt a NAND dump if u don't already have one. it's very important to keep that safe, but u probably already knew that.
anyway, I think downgrading the browser involves using wup installer or maybe even ftpii everywhere/wupclient, so u don't have to break down the system and install a teensy to do it.. u might look around on there to see how it's done or even if it can be since I only skimmed a thread in which someone shows a video of doing it. he's a credible member though, Ricardo I think is his name, so u might look that up. I may have spelled his name wrong, but it's something like that.