LC-52SB55U
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2.4. Upgrading LCD controller software
Create the USB memory for LCD controller software version upgrade in the same manner as explained in the “Main software version upgrade”.
Copy the file LAKELAxx.USB and LAKELDxx.LCD to USB memory.
2.4.1 How to upgrade the software
1. Unplug the AC cord.
2. Insert the USB Memory for version upgrade (prepared as above) into the service socket located Right side of Main Board terminals, under INPUT3
terminal.
3. Plug in the AC cord with power button pressed down after 5 seconds, unpress the power button.
4. After the unit startup, the system upgrade screen as shown below appears within 20-40 seconds.
5. Even a single failure in the process will trigger the upgrade failure screen.
6. Upon completion of the whole process, the upgrade success screen as shown below appears. You can check the new software version on this
screen. The version information appears after the upgrade is complete.
7. Unplug the AC cord and remove the USB Memory for version upgrade.
8. Now the software version upgrade is complete.
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UPGRADE FAILURE
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UPGRADE SUCCESS
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