Multiple Problems with Fairphone 2 and no response to help request

Please use the search function. For many of your problems threads already exist and some have solutions, others have workarounds.

I’d guess that’s a permission settings issue.

Does it switch off or reboot?

This is a known issue with the proximity sensor. Just clean the glass in front of the sensor and then go to Settings > Maintenance > Proximity Sensor and follow the instructions to recalibrate.

Do you mean the home screen icons or the screen itself? Maybe a screenshot could help.

Charging issues are common too and are usually solved by using the right charging equipment.

If they don’t answer your support request within a reasonable time frame usually something went wrong and it’s best to call them.