problem can't set 3840x2160 30/60

My Zidoo X8 can't set 3840X2160 30/60 , every time set 4k turn it back on the resolution to 1080p or auto mode.

zidoo x8 fw 1.4.12
tv ss mu6100

thank you.

 

Known problem not solved for months

 

The problem is not resolved. feel disappointed.

zidoo x8 x9s x10 can't set display 3840x2160 (4k)
http://forum.zidoo.tv/index.php?threads/4k-resolution-settings.5891/

 

will check it.