Cannot get it working. After contacting seller, seller advised me to change the settings to region China Mainland. But when doing so part of the menu also changes into Chinese. So if you cannot read Chinese (manual only in Chinese, app partly Chinese) you maybe should look for another ZigBee gateway seller.
DO NOT buy from this seller. When the product is not working as may be expected, the seller demands you to make a video of how you use the app in combination with the Gateway, apparently expecting you can bend your phone in such a way that the lense of your phone is aimed at the app screen and the Gateway. Alternative item ordered from other seller works within 10 minutes.
all ok