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.

How to make sound output from external speaker bypass integrated speaker in IFP30/50 series?

Please connect an audio cable from the AUDIO OUT connector on the IFP30/50 to an external amplifier or active speaker with a power adapter.

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 slot-in PC which can support vPro and TPM?

VPC14-WP-x and VPC12-WP-x can support both Intel® vPro and TPM 2.0.

Why can't I adjust the Hue and Sharpness settings on the slot-in PC and HDMI source?

The Hue and Sharpness settings are only adjustable for the Analog source such as AV in /VGA source.

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.    

How do I wake up my IFP50 series in standby mode?

IFP50 has a feature of “Wake on active source” to wake up from standby mode when there is an external HDMI/VGA signal input.   Supported input sources:   1.IFP50-1/Gen 1 and 50-2/Gen 2/50-2 EP: HDMI and VGA 2.IFP50-3/Gen 3: HDMI.

Is it possible to automatically sign out Gmail account when closing Chromium?

No, it's necessary to click "Account" icon to sign out Gmail.

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. 

Why can't I sign into Google account even with internet connection?

Please manually set Date/Time to select correct time zone.