Just a follow up to this, I wound up updating to 9.2.0.20, don't use the 9.2.0.20 update on that iso site, it's not right. Like I said it before, it updated my O3ds to 9.0.0-20 actually, and then I found out my dev mode was broke. So I jumped through hoops and finally got it downgraded back to 4.2 and dev mode worked again, re-updated to 9.2.0-20 - THIS TIME USING the update package for 9.2.0-20 on the OTHER website that had these CIA packages. This one worked, now I am on 9.2.0-20. I still can't get back into dev mode though.
I compared the 6 CIA files from the one on that iso site, and they all differed then the 9.2.0-20 package from the other site.
I went through this because I have been having really poor consistency in booting into gateway mode. (2 out of 5 boots) I have no idea if this will help, but after I found out I could no longer get into dev mode on 9.0.0-20 I figured it was worth a try getting to the right 9.2.0-20.
Does dev mode NOT work in 9+ versions? Or maybe the devmode is not being upgraded in the CIA pack for 9.2.0-20? Anyone know?