LG LG-600 Series, Repair Manual, Page: 19 / 90

GSM Handsets Lab.
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5. ENGINEERING MODE
5.2 Trace Test [MENU 2]
S/W Version [MENU 3] : This displays software version stored in the phone.
5.3 Eng Mode [MENU 4]
5.4 SIM Lock [MENU 5]
5.5 Call Timer [MENU 6]
A. All Calls [6-1] : This displays total conversation time. User cannot reset this value.
B. Reset settings [6-2] : This resets total conversation time to this, [00:00:00].
5.6 Fact. Reset [MENU 7]
This Factory Reset menu is to format data block in the flash memory and this procedure
set up the default value in data block.
Attention
Fact. Reset (i.e.Factory Reset) should be only used during the Manufacturing process.
Servicemen should NOT progress this menu , otherwise some of valuable data such
as Setting value, RF Calibration data, etc. cannot be restored again.