i dont get the question,
This software or file from :ziphone: doesnt upgrade anything.
It waill unlock, jailbreak, put installer icon ver 3 latest one and also sim free the phone so you can use it on any network that you wish.
There is no downgrading or upgrading of firmware required after that.
if you want to go from 112 to 113 you still run this file, or vice versa, you can go back to any version that you like
ahh yes, my question is will it also unlock a phone with the 3.9 boot loader. one which is NOT a 1.1.2 or a 1.1.3 OTB