SamyGO

I have trouble with the SmartHub of my 32F5370 (T-MST 2117.2). I have disabled: OTA, OTN and Watchdog in Service menu. TV is not rooted yet. But SmartHub refuse to work. The menu option for the Samsung account is greyed out. When I open SmartHub only the webbrowser is available. I cannot search through other widgets/apps. As suggested here I tried to trigger the system update multiple times. Also I have tried different DNS servers as well as a factory reset. Even re-enable the setting in service menu not help.
Can anybody help?

Does tv keep stored channels and user picture settings? When smarthub started to be slow? You did install something before or?