LG D337 - Page 209

10. HIDDEN MENU
- 209 -
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Only for training and service purposes
LGE Internal Use Only
2. ELT Test – Manual mode
Automatic mode
ELT Test
Automatic Mode : LCD Automatic on/o test
-> time setting
Manual mode
ELT Manual Test
-LCD Backlight
-Ringtone
-Vibrator
-Camera
-Audio Loopback
-> test on the device is working
(The ability to use plant)