Technical information

Chapter 4 42
Touch Panel
After entering this test item, use your fingers to operate the screen, draw a straight line between the two red
lines, horizontal 10 lines vertical 6 lines, and then automatically end the test.
Keys & Vibrate
Enter the Keys & Vibrate item, in turn, press the volume key, volume down key,power button, followed by the
phone vibrate, then the test ends automatically and return to the main menu.