I had made a lte fix for telus which would work seeing as bell runs on telus network.
I can confirm this works on At&t. Here it is
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Also, The reason we asked about your CPU revisions earlier in the thread is because some of you guys are running different revs and they handle voltages differently. Bad news for you guys on rev 4: You can't adjust your voltages. Samsung hard-coded them right into the CPU. You can try to change them all you want, but they aren't going to stick. You're probably stuck with stock. We've added scripting to AROMA which will tell you your CPU revision you have and if you can't adjust voltages, we'll tell you right there in AROMA so pay attention.