I'm very new to these devices, I came across them last week and had one delivered yesterday. I plugged it into my car but I seem to be missing the splitscreen button, I've checked in the settings and watched some videos but as I understand it should work out of the box.
I've looked through several threads here and seen some mentions of model numbers like CP600, firmware versions etc but I'm unsure how I check if I need to perform an update or the model number of the device that I have.
Here are some pictures of the system if it helps with providing me with some guidance on what I need to upgrade (if anything).
Thanks in advance.