BPMHey no it doesn't say tencent games in the back.. I don't think it's the tencent version.
Does your phone say "Tencent Games" on the back? If so, it's the Chinese model flashed with the worldwide ROM. Unfortunately, it won't be able to get OTA updates. However, I do believe you can still manually update it by downloading the updates from Asus's support site.
While you can get the Chinese variants A LOT cheaper than the international variants... there are issues in doing so, like this.
BPMHey I have the same model as you, and yea I updated manually to the latest version. Is OTA gonna work now or I still have to manually update Everytime?
Thanks. If it says "Republic of Gamers" on the back, then it should be one of the international variants, and should be able to get OTA updates. Strange.
I would suggest downloading CPU-Z (or other such apps) and find out exactly which model you have. For example, my phone is model ASUS-I003D.
Either way, you can still manually update your phone.