If you are new home subscriber to TM UniFi with HyppTV package, you will probably get the new Huawei EC6108V8 set top box (STB) as your IPTV service decoder.
If you are existing TM UniFi VIP package user, your HyppTV STB might be of the old Huawei EC6106V5 model...
or even the older Huawei EC2108E...
The Huawei EC2108E STB can only run the HyppTV app, and provides the least control to user.
The Huawei EC6106V5 STB comes with higher hardware specs as well as later version of Android, and is possible to install with other Android apps with some hacking.
The Huawei EC6108V8 is much smaller in size, has even better hardware specs, running on Android 4.4.2, and comes with Google Play Store which makes installation of Android apps even easier.
If you are using the older HyppTV STB and have recently upgraded your UniFi to the 30Mbps or 50Mbps package, you can request to replace your old STB with the latest model for free. As a result, I've upgraded my Huawei EC2108E STB to EC6108V8.
Note that the LAN port of your STB is connected to the LAN port of your router with VLAN 600, which is dedicated for IPTV service. So you can't use it to access to the Internet.
In order for your STB to access to Internet and download apps from Google Play Store, you need to enable WLAN under Settings > Wireless and Network > Enable WLAN.
With this, you can connect the STB to your home WiFi network provided by your router, and use it to connect to the Internet.