This disables the proximity sensor in 4.1 - 6.0 devices. It has not been tested on anything less than 4.1, and does currently work on 6.0.

1. Download and install Xposed framework
2. Search for and install Disable Proximity Sensor module
3. Activate the module and reboot

This app does not have a launcher activity. You can access the settings via Xposed -> Modules -> Disable Proximity Sensor. When the toggle is off, the sensor is disabled. When the toggle is on, the sensor is enabled.

• Xposed Module page
• Support
• Google Play