OK. subtle hints are failing on you, so I will now be blunt.
READ THE GUIDE!!!
had new just dance 2015 original disc that wouldn't load after installing on usb. updated hbc and gx loader then this d2x adjustment and #BAM worked great after this and using ios224. thanks again
I attempted to install cIOS249  v6, as I have read that it is needed to run my backup of Kirby's Return to Dreamland on GX. Everything seemed to be going perfectly fine as according to the guide, but when installation was all said and done, I am no longer able to run GX. I get a black screen for a few seconds before a screen filling 'Exception (DSI) occurred!' message pops up with some code called a Stack Dump and a Code Dump appear beneath it. The screen text ends with 'Reloading in 5 seconds'. Five seconds later, the word 'Reload' appears at the bottom, but nothing appears to reload. It is stuck on this screen until I shut the console off.
There don't seem to be any other problems with the console other than failing to load USB Loader GX. It can still play GC and Wii discs just fine, but I'd really like to fix whatever errors I may have caused. Is there a way to uninstall the cIOSs or should I try using my Priiloader to use BootMii to a previous system restore before I attempted to install this cIOS?
This guide may be outdated a little. We would recommend people use the v8 cIOSs instead of the v6's.
Post a syscheck so we can see what your system looks like. If you are getting DSI errors, then something that GX is needing is missing. Depending on how things look, we'll have you do one of a few things to get things back rolling again.
Directions on how to generate and post a syscheck are linked in my signature. Go ahead and post the syscheck as a reply to this thread.
I think we need cobweb patrol, this thread's been dormant for quite awhile...
V6 should have the same if not better compatibility than v8 unless using nand emulation or a usb3 device. Deleting the .cfg files in the apps/usbloader_gx folder should do the trick (i think..lol)