Issues on 1.04 - 5020Lrev A1
1) WIFI unable to connect to my router after upgraded from 1.03 to 1.04 (dcs5020l_v104_b5.bin) . Only Ethernet is working.
Solution was to perform factory reset and redo all my config.
Note that this factory reset is Unacceptable as I have some of my camera on remote locations.
2) ios 8.1 mydlink lite+ = The app is showing "Upgrade Firmware" and when you click it, it will reverts back to firmware v1.03.

I upgraded again to 1.04 using desktop, but then the mydlink app reverts back to 1.03
DO NOT UPGRADE to v1.04 (dcs5020l_v104_b5.bin) when you dont have quick physical access to 5020L