you may want to read my recent post of using 4G dongle in Hong Kong (or outside China)
https://mavicpilots.com/threads/mini3-pro-mavic-3-using-4g-dongle-in-hong-kong-success.140438/
Additional note: User cannot use the WiFi Hotspot feature on RC Pro as connection to 4G dongle on the DJI mini3 Pro or Mavic 3. User must install a 4G dongle in RC Pro. The WiFi Hotspot feature is only enabled in China.
People who have used the 4G dongle may notice that late 2022 firmware...
Where is the video signal port to the LCD panel? Is it using a ribbon cable?
I wonder if it is possible to add video out feature to the RC controller.
I found 2 PCB design on taobao that may work?
you can get a HDMI video capture card and output the screen to an Android device (smartphone or tablet).
Photo is Xiaomi 12X + RC Pro.
In addition, you can then miracast the smartphone/tablet to your TV.