I had to get a controller replaced due to bad memory. Well the wlc cisco sent to me had the Russian LDPE image on it. Which wouldn’t allow me to upgrade the code to non LDPE image. I found this doc explaining the issue and also the fix for the problem.
Trenton Hurt, CWNA, CCNP(W), CCNA(W), CCNA(V), CCNA(R/S)
Wireless Network Administrator
University of Louisville
Phone (502) 852-1513
FAX (502) 852-1424