See: http://forum.xda-developers.com/show...5&postcount=80
tl;dr: after flashing 5.1 factory image (not wiping user data), seems sensors are kaput.

I've cleared cache and restarted, no joy. Restarted into Safe Mode, no joy.

Think I'll have to flash BACK to 4.4.4 again ... as the phone has not had any hard bumps, drops, or other physical problems. Anyone else encountered this??

Hi, this app monitors various sensors of your mobile phone and send their values to a server. You must provide the IP and Port of that server in settings menu.

Insert the url in your browser
play.google.com/store/apps/details?id=com.jgcheca.sensorstracker

• Monitor Accelerometer sensor.


• Monitor GPS sensor

You can set the sensors speed monitoring among other awesome features.

Just set an IP and Port in the settings menu and configure sensors settings and start tracking your sensors.

You can test if with a netcat the machine which is receiving the data or in an other mobile phone using an app which is able to listen in a given port.

The app notifies you when is tracking sensors with a notification in your notification bar.

Snapshots

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