I had already do manything before posting her
I used 3 different HDMI Cable
Tryed the 4 HDMI Port ou my TLC TV
I had non hard Drive , no USB connected , all usb port are free
I had test several image (Blackhol , VTI, Open PLi , OPEN ATV , OPENBH.. even officiel image by VU+)
Tested all mod 480I , 520P,720P, FHD , UHD, (50Hz , 60Hz , multi......)
Alway the same , OSD OK in Web Interafce but not OK on my TCL TV
Now i m sure , the issue is the communication bertween my 4K TCL TV and my VU+ Duo 4SE , because when i use my Acer PC sreen , i have OSD , all is fine .After booting with my Acer PC screen OSD is back then i can plug plus the HDIMI cable on my TVL TV and get OSD , but is i reboot the VU DO 4K , then no OSD again on my TCL TV