Okay. I got the cable. But it won't work. I don't have UART mode enabled. And I'm not sure how we can. There is a mention of UART in the bootloader in fact there's a command:
But if you try issuing it, it doesn't even yell at you about the locked bootloader. Instead it plays dumb and doesn't recognize the command.
Now, I did plug it into my Pixel 3 XL where it did work. I'm not sure if this console can help us. But I'm also not certain of the differences. I've heard that the console can brick Pixel 3 if used improperly though. So I'm nervous to continue using it there to find out if it'll help.
Also in regards to the "adb root" working, I've noticed that "adb root" doesn't complain on Windows, but doesn't grant root.
If anyone has ideas of how we can enable UART, I'm all ears. Google can't preform magic. There must be a way to flash these devices with a better CID. Even if it's tearing down the phone.