Hello, We have WLC 2504 running software version 8.0.120.0, with Bootloader Version 1.0.20. & Access Point 2600 running ios 15.3(3)JA4. 1. Correct me if am wrong... WLC update path is 8.0.120.0 --- 1st update to 8.3.143.0---- then 2nd update to 8.5.1...