Fortunately I found this forum, previously I dont have any idea how to solve my problem.
After firmware upgrade to 2139.1as screenshot attached
I got some apps not run correctly, like cannot got the current time for my location, his say need offset time or something.
Also on app list, when I already arranged, after TV switch of, app list on page 1 will disappear and move to page 2 without arranged well.
I read on this forum, for F series, we can solve that problem with downgrade to proper firmware, before doing that need zero firmware for this model.
Could somebody help me to provide zero firmware for my model, I search on this forum and google, but not found yet.
All your help & advice will be appreciated.