Thanks for the reply, but I have no option in the settings?
There should be Driving Mode, then Smart Key and finally Switch Phone but all I have is Driving Mode, then Switch Phone.
Just spit-balling here, as I don't have the phone....
Just to rule everything else out, have you looked in "Developer Options"
If it's not listed there, the only other thing that comes to mind is look for a hidden shortcut, either with an app from the play store, or, if you have Nova Launcher, use its shortcut function to search for it.
If all else fails, I'd look around here in the XDA TCL forums for someone that might have a device with the .apk to extract & share, or, reach out to TCL for the app/request a software update to include it.
Perhaps some of the YouTubers who've got this phone can help out/share an apk.....
Glad I checked out this section, I'd be tee'd to find this out after the fact.
@skromnia
Can you extract the apk from your other TCL device, see if it works on your 10 Pro?