So your saying that if I use rotary lockscreen I can't change my carrier banner? That's incorrect. I can edit the eri.xml file to say anything. I can still use that with rotary.
How do you go about editing the eri.xml file to say what you want?
You need a hex editor to edit eri.xml which is located in framework-res.apk
Not if you are just changing the banner name. It's a little more complicated and time consuming (hours) (unless you already have all the stuff you need installed and setup/saved (5-10 minutes)). UD8.0 makes it a little more challenging too because stock it comes themed with the great and wonderful 9png files.
To go into detail would require a thesis length writeup. It would be far far easier to request someone (who has the tools and the files) to do it for you and hope they are kind enough to help. After this weekend (because I should hopefully finally have the time to do it) I could do it for you if you are running the stock UD8 theme or one of the Glass themes.
If you are running a different theme, I would ask that themer if he/she would be so kind as to edit the eri.xml file for you to say what you want it to say.