Okay, I just fixed this problem on mine a few days ago.
I've heard that if you want to use hermes, you can only use it with a usb loader because as far as I know there aren't any dvd loaders that will let you select with cios to use.
Other than that I've heard you should downgrade from v14 to v13. I, myself, have not tried it this way but I'm betting that you might need to use "Any Title Deleter" to delete cIOS v14 by itself. If v14 is embedded into ios249 then check and see if it you can downgrade right over the top of it without deleting first. You most likely will not want to delete ios249 as a whole as other things like dvdx may be in it also.
So either..
Put it on a jumpdrive (wbfs formatted) and use usb loader that allows ios selecting (and choose 222)
or
Check and see if you can overwrite to downgrade the current cIOS and stay with dvd. I would google it before attempting it though.