[BLUETOOTH ISSUE] BT E2P ERR on LG Hi-Fi [FIXED]

Do you have the same CM9740 speaker? Other models may use different PCBs for the Bluetooth connectivity, so I can't speak for those.

Depends what is wrong with it. Did a quick search and found a link to a document that speaks about there being no power and a blinking standby LED which may be a similar fault to yours. Document itself seems to be pretty useful as it provides some solutions to various issues.

Link to document: https://www.manualslib.com/manual/123216...

Seems to point to a main board issue, but might not be. There isn't much else to go on though, so it's a good place to start. Finding parts for these speakers is difficult/near impossible so unless you can find a replacement main board for sale, the chances of fixing it will be quite slim.

It's a faulty Bluetooth module adapter card. Same fault occurred with my CM9740 speaker. Replacing the adapter card fixed it. It's been working fine for about 3 years now. The challenge will be finding a spare adapter card. It took me a while to find one.

You have to disassemble the main control where the power button and all other controls are to find the adapter. There's a lot of connected PCBs there. The Bluetooth one is there somewhere. It's a tiny board so might be difficult to spot. Once you've found it, take it out and look at the markings on the card. Search Google/eBay using those markings to see if a replacement comes up.