LG P7200 - Trace Option [MENU 4]; Call Timer [MENU 5]; Fact. Reset [MENU 6]; S;W Version

9. ENGINEERING MODE
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9.3.7 MicSpk Test
The sound from MIC is recorded for about 3 seconds, then it is replayed on the speaker automatically.
9.4 Trace option [MENU 4]
This is NOT a necessary menu to be used by neither engineers nor users.
9.5 Call timer [MENU 5]
This menu is to set the Digital Audio Interface Mode for Speech Transcoder and Acoustic testing.
1) All calls : This displays total conversation time. User cannot reset this value.
2) Reset settings : This resets total conversation time to this, [00:00:00].
3) DAI DOWNLINK : Speech decoder test
4) DAI OFF : DAI mode off
9.6 Fact. Reset [MENU 6]
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
1 Fact. Reset (i.e.Factory Reset) should be only used during the Manufacturing process.
2 Servicemen should NOT progress this menu, otherwise some of valuable data such as Setting
value, RF Calibration data, etc. cannot be restored again.
9.7 S/W version
This displays software version stored in the phone.