LG D686 - Page 191

10. HIDDEN MENU
- 191 -
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Only for training and service purposes
LGE Internal Use Only
ELT Test
Automatic Mode -> Test Automatically
Manual Mode : Test selectivity
ELT Test
Automatic Mode : LCD Automatic on/o test
-> time setting
ELT Manual Test
- LCD Backlight
- Ringtone
- Vibrator
- Camera
- Audio Loopback
-> test on the device is working
(The ability to use plant)