New to GC

Thanks for the add. New here and needing help with 04 Grizzly 660 4×4. I have seen a lot of great advice on here just looking through the forum. Unfortunately have not come across one that helped me with my situation. Hoping someone out there can give me some pointers. The bike is stuck in 4×4 differential lock and refuses to come out. was told it was the servo motor so bought a new one and put it in. Still nothing. Bike still stuck in diff lock. Anybody have any suggestions? I am not a mechanic so please no negative comments. Thanks in advance!