Is it possible to select different time zone for date

The default time zone is +8 which can be changed at the initial setting stage by Set up wizard of ViewBoard Launcher. It will be auto sync-up later with internet connection.

How to prevent from annotate on ViewBoard Cast by mobile devices?

You can disable the “Touch and Annotate from Mobile” function in setting.

What default app can be displayed in the ViewBoard vLauncher?

Below apps will be displayed in the ViewBoard vLauncher with firmware date after Jan/2021.    

What’s the LED backlight life of IFP6550?

The LED backlight life of IFP50 series is 30,000 Hours Min.

What is the resolution of IFP7550 OSD menu?

The resolution of IFP7550 OSD menu is 1080P.

How to avoid unauthorized cast-in via Airplay?

To disable Airplay Service in vCast do the following：   Open vCastReceiver on the IFP Select Settings (Gear icon) Select iOS Advance Settings Uncheck Airplay Service   To enable Airplay follow steps 1-3 and check Airplay Service

Is there any recommended RS232 software to control IFP7550 by ASCII command?

You may control IFP7550 by Hercules software. Please have "HEX" checkbox unchecked and key in ASCII command with <CR> at the end.

Is it possible to display the resolution at 800x600 on whole screen with the same image quailty?

To obtain better image quality, please set the resolution at least at 1920x1080.

What to do with black image when playing YouTube videos by Chromium?

Black image means that the specific video format isn't supported by Chromium. You can play such videos by integrated Browser in Embedded Player. 

The Fluo Yellow colour that shows on IFP5550 is becoming a yellow greenish, how can I do?

You can set color temperature to Cold or drag the dot to right to adjust in Display setting. Please note when you set color temperature to Cold or drag the dot to right to adjust, the blue light also increase.