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About This File

Includes instructions for manually updating main PCB software using the check sum after LG universal compressor installation, in case the automatic update fails.

Warning : If you connect the jig while the refrigerator is plugged in, the PCB will be damaged.

Edited by David1

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Ananda

Ananda

Posted (edited)

These instructions are seriously flawed missing crucial information: how to find the checksum of the current board / refrigerator You're working with.

 LG's technical repair website has a video explaining The crucial missing information from this service bulletin: how to find the checksum to upgrade from in the as it is column on a sticker on a chip near the con202 connector.

https://lgrepair.com/apps/#comp

Edited by Ananda
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