##634# Opens The Nokia Lumia 900 Diagnostic tool
I love hidden diagnostics. Lets you see what they play with and let’s you check to make sure things are operating ok. So if you have a Lumia just type in ##634## and a Diagnostic app will be added to your Lumia. Accelerometer, ALS, audio loopback, camera, battery status, DTMF, gyroscope, hardware buttons, headset detection, … Read more





