...Others could try simply disabling @Displax modded USNF module, rebooting, enabling and booting again as I mentioned (first link in post above)...So I somehow managed to fix this by uninstalling the modded USNF, rebooting, reinstalling the same mod, rebooting and then I was able to pass the meets_device_integrity check. So now I have a working Google Wallet. No idea how this worked or why I didn't think of it before! Just a heads up for those still struggling
