Use APKPure App
Get Key Tester old version APK for Android
Check Android device hardware key functioning.
Tests which key or button on your Android device is pressed.
Currently Key Tester supports
Back Key
Volume Up
Volume Down
That's it. We are working on Home and Power buttons. Please be patient while we solve this. Note that the Menu button also works only on some devices.
Hope this key tester helps in detecting your phone key damages. :-)