To check if your AGM A7 supports HDMI Alt Mode, you can follow these steps:
Check the specifications of your phone. Many phone manufacturers will list the supported connectivity options in the phone's technical specifications. Look for a mention of "HDMI Alt Mode" or "USB Type-C Alt Mode."
Check the port on your phone. HDMI Alt Mode is supported through a USB Type-C port, so you will need to have a phone with a USB Type-C port to use this feature.
Check for a compatible adapter. If your phone does not have a built-in HDMI port, you can use an adapter to connect it to an HDMI display. Look for an adapter that is specifically designed for use with HDMI Alt Mode, as not all adapters will support this feature.
Try connecting your phone to an HDMI display. Once you have a compatible adapter, you can try connecting your phone to an HDMI display to see if it works. If the display recognizes the signal and displays the content from your phone, then your phone supports HDMI Alt Mode. If the display does not recognize the signal, or if you experience any other issues, then your phone may not support HDMI Alt Mode or you may have an incompatible adapter.
It's also worth noting that HDMI Alt Mode is not supported by all phones, even if they have a USB Type-C port. If you are unable to find any information about HDMI Alt Mode support for your phone, or if you are unable to get it to work with an HDMI display, it is likely that your phone does not support this feature.
