OK, I'll be right back with the guide to downgrade and a link to the H1 tar, the rest of the info for rooting/flashing recovery and the ROMs are not even close to what is up to date but for the newer stuff you'll need a CDMA SIM card if you want to flash a newer custom ROM or you won't get any 3g data. There are a few 4.4.4 Kit Kat ROMs that work without a SIM but they require third party apps for camera and MMS(SMS works fine but not multimedia like pic messages). I can walk you through however you want to go and get you setup with whatever you want within your means.