Not true. I just bought an x4 on amazon and flashed crosspoint with no issues.

How big of a problem is this? I did get my X4 from somewhere else, but I was still able to change firmware. I think it just adds a hurdle to make it less trivial for unscrupulous resellers to install crapware.

Is that true? I heard for the X3 the pogo pin cable they ship has 2 pins not 4 but you can buy one and it will transfer data and let you flash custom firmware.