A group of mWater users reported serious problems using the mWater app on the Huawei Y6 5-inch smartphone. We have added this phone to our Devices Knowledge Base as a device that is not recommended.
If you already have this phone in use, watch for parts of the mWater Surveyor homepage and map page not appearing. Some users have found that updating the Android System Webview app in the Google Play Store resolves this. Some users have found resetting the phone altogether to factory settings resolves this.
As a reminder, before beginning any fieldwork, setup all phones and tablets using the mWater Android setup checklist. You should do this on good quality wifi, not using mobile data, as it will require much data to perform the updates.