You might have a Tencent-branded ROG Phone II, see this thread for more information on the subject:
CH_ASUS
Hi all
We have come to notice there are resellers selling the so-called "Tencent ROG Phone II"-models for the Chinese market with "International ROM".
We would like to make clear that ASUS does not officially sell any Tencent-branded ROG Phone II with so called "International ROM" or "Global firmware".
We cannot guarantee the functionality of this combination , if you are facing any type of issues - please turn to your reseller where you bought this device - as this is is not a combination we are selling.
Please also take careful note that updates/FOTA functionality will be disabled since the ROM and the models dont match, some resellers note this in the fine-print.. some may not..
Extra info:
If you are seeing anything about a "Global ROM version" or "Tencent with Global/WW ROM" it would be a clear giveaway.
[PSA] Take caution - Tencent-branded Chinese models with "Global/International ROM"
If that's not the case you can try updating to WW-16.0631.1910.64:
https://dlcdnets.asus.com/pub/ASUS/ZenFone/ZS660KL/UL-ASUS_I001_1-ASUS-16.0631.1910.64-1.1.253-user....If that update is successful you can then try to update to the latest A10 firmware.
