How to: HTC Function Test with HTC One M8

Simply a function test app where you can test basic things in the phone. Like display and so on. This works with most HTC Android devices.

It’s actually pretty simple, in dialer (where you make your calls) simply enter:

*#*#3424#*#*

And you should be greeted by this

Simply accept it, and on the second screen you just select what tests and then just tap Run.

What tests you can run on the One M8.

  • Audio Test
  • Barometer Test
  • Button Test
  • Flashlight Test
  • Hall-sensor Test
  • LED Test
  • Line Drawing Test
  • SD card + camera Test
  • Wi-Fi Test
  • Backlight Test
  • Bluetooth Test
  • Charger Test
  • G-sensor Test
  • Headset Test
  • Light-sensor Test
  • P-sensor Test
  • Vibrator Test