aside from the region lock thing... just want to chip in as well that just because OP12 can convert without any major difference aside from the hardware-based ones (like e-sim), doesn't 100% means OP13 will be able to convert as well. an example would be the OnePlus Ace 3 which last I checked, will still have some issues after converting to global 12R software (some network thing after doing OTA, can search XDA for info). so unless okay with CN ColorOS, can get seller to do region unlock, don't really recommend anyone jumping the gun now hoping to be able to convert ownself later. cause from OnePlus' behaviour since the Ace 2, they seem to be trying hard to dissuade ppl from buying CN set and converting to global for some reason (personal guess is maybe global retail partners not happy being undercut?) so never know if they will implement even more things with OP13 or not. wait and see better.