> As of the latest models, XTEINK has started to lock down the firmware to prevent users from installing Crosspoint. So, if you're reading these reviews, beware: the thing that a lot of people bought this for is going away soon.
Source: https://github.com/crosspoint-reader/crosspoint-reader
Xteink also claims that non-domestic versions of their devices sold by their "official" store are unlocked, but there's been a bunch of reports that that's not always the case (...along with devices arriving with broken screens, not arriving at all, or the wrong device showing up).