If you cannot access the Google Play Store, manually install the app by downloading the apk file below.
Step 1 (of 5)
From the Home screen, swipe up or down from the center of the display to access the apps screen. Open Settings.
Step 2 (of 5)
Navigate to Settings > Security and privacy.
Tap Install unknown apps.
- Step 4
Find the browser you are using e.g. Chrome or Firefox.
- Step 5
Download Topo.apk, then tap Open to open the app.