I'd say the first step is to get unsigned code running on the versions it currently works on... then we can worry about how to fix the newer ones (unless the GODS offer some new hints on them). Just my thoughts
Can someone try it with 1.30? We know 1.31 doesn't work already with it...
Well at least now we know... however, more holes/exploits can be found on lower versions from this type of thing, and then those can be tested on higher versions so it will be interesting to see what develops.
I have recieved one report of it working with 1.52 without alteration, like it does for 1.1
Strangely that is the third report of the file working...Kinda hit and miss...but if it works...it always works...if doesn't work...it'll never work (on that firmware)