huh? I think it'll get banned only if you used it with your main... if we are talking about Arthur Geron's BF3 Trainer Update 5 it closes after 10 secs.
Just to make sure delete all the hacks from your computer and then log in.. I never used the Arthur Geron's BF3 Trainer Update 5 on my main.. i used his older versions and im not banned on my main.. im just banned on the account I used the Arthur Geron's BF3 Trainer Update 5 hack on... but if you ever tried the Arthur Geron's BF3 Trainer Update 5 I think its MULTIHACK #71208 you're fucked. And just to be extra sure its off your pc just restart your pc then login.. hoped I halped