Free download PhoneSimpleTest(PST) APK for Android, PC. Latest version is 1.784, update at September 17, 2015
PhoneSimpleTest(PST) version 1.784 is only one variant.
Just provide test your phone (1) screen: color, contrast, clarity, grayscale test (2) Sound (3) Vibration (4) flashlight (5) Touch (6) Wifi (7) Sensor (8) GPS