I just have a quick question which is extremely n00bish, but I would love to know the answer.
So, with 4.21 released, and 3.55 being cracked and all that, why can't you patch the 3.55 firmware so it reads as 4.21 using MFW builder or something?
I picked 4.21 because it is already released so build numbers and all that are there and you wouldnt have to guess or something, and because you can downgrade from 4.21 to 4.20 using GlitchyJoey's "4.21 MFW v0.1.1" then installing his "4.20 v0.1.1 Reverter".
Doing that would let even people on 4.21 downgrade. So whats the hold up here?