This homebrew has the simple task of testing the buttons, analog, audio speakers and the Bad-Pixel of your PSP.

Changes:

– New layout, much more pleasant and intuitive (Graphics By BURG)
– Homebrew converted to LUAPlayerHM 8.1
– Much improved uploads
– New Test control buttons, you can now test the buttons: Volume (- and +), brightness and the Note button (hold)
– New Analog Test Control integrated with that of Keys
– Added control Pixel Test
– Added automatic update feature (Netlib By return0000)
– Removed the Test Control WLAN on the futility
– Homebrew translated into 2 languages: ENG and ENG

http://forums.qj.net/psp-development-forum/167977-release-psp-keys-test-v3-0-a.html