Firmware Upgrade Method - LG LAC5800(R) Service Manual

1. Confirmation of version information
• Change the Source of audio set to tuner.
(Default: tuner)
• Turn power off using power key.
• Press power key for 5 sec.
(After power on, continue pressing)
• After 5 sec, beep sound rings two times.
Then version information would show up at
display.
• In order to check version of MAIN/CD system,
Press band key.
• With beep Sound version of system for main,
CD is displayed in sequence.
2. Upgrade Program reading
• Insert update CD in ACC on state and then
[READING --> FILE CHK --> DOWNLORD?]
is displayed in order
3. Upgrade start
• In order to start upgrade, Press INT key long
(more then 2 sec) until "CHECK CD" Display
on the LCD.
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

FIRMWARE UPGRADE METHOD

[ MAIN/CD FIRMWARE UPGRADE ]
4. Upgrade progress display
• Upgrade is in progress now.
[ Write --> I-VRF --> D-VRF ]
5. Upgrade Completion
• When Upgrade finished, the display shows up
"DOWNLOADED". After a while, the audio set
is reset automatically.
• Caution!
If power is off on the way of upgrading
firmware, the set can't be recovered.
Therefore pay lots of attention for power not to
be off.
1-5 LGE Internal Use Only