I have a Nexus 5X running Android 7.0. Since the update to 7.0, the Android OS has been using significantly more cellular data while connected to WiFi. Prior to the update, the Android OS used ~5Mb/month. Currently, the Android OS is using ~40Mb/day of cellular data while continuously connected to WiFi. I have tried the follows steps to troubleshoot and reduce data without success.
- Turn on Data Saver
- Turn off Cellular data always active
- Restart in Safe mode and monitor usage
- Factory reset and monitor without 3rd party apps
- Replace phone
- Keep WiFi on during sleep
Also, this is not a one time spike in data usage (such as downloading the OS update or updating other apps) as I have monitored data usage activity for ~1 month now. During that time the Android OS alone used over 1 Gb of data while connected to WiFi >95% of the time. I have contacted the carrier (Project Fi) who has informed me the OS is working as intended even with this data usage. The only solution I was given was to turn on/off cellular data as needed, which I do not feel is a reasonable solution for this issue.
- Turn on Data Saver
- Turn off Cellular data always active
- Restart in Safe mode and monitor usage
- Factory reset and monitor without 3rd party apps
- Replace phone
- Keep WiFi on during sleep
Also, this is not a one time spike in data usage (such as downloading the OS update or updating other apps) as I have monitored data usage activity for ~1 month now. During that time the Android OS alone used over 1 Gb of data while connected to WiFi >95% of the time. I have contacted the carrier (Project Fi) who has informed me the OS is working as intended even with this data usage. The only solution I was given was to turn on/off cellular data as needed, which I do not feel is a reasonable solution for this issue.
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