Oh wow I'm dumb... I placed the file on my phone's sdcard and tried to flash it in fastboot... no wonder there's an error lol. To all those confused
put the file wherever your fastboot is on your computer. Works great, other than the fact that fastboot wipe cache messes up your partition, but all you have to do is reboot into recovery and format cache there. Not dalvik-cache, as you'll get an error, just normal cache. Thanks for this great mod now my sexy dark rain splash screen is untarnished!
---------- Post added at 06:17 PM ---------- Previous post was at 06:15 PM ----------
If you're s-off you should be able to flash any hboot. If you're s-on, then no... and go s-off right now! (it's really easy)