I am trying to fix this item, it works except I can't get it to pair. Searching online hasn't found a manual for it. I am wondering if the Bluetooth module is faulty as it works in analogue audio mode.

The module has two rows of castellated pins for a total of 24. It uses the CSR 57F68 chip together with a flash chip for storage. The main board has an amplifier chip, stereo mixer, power supplies and a microcontroller which seems to have no markings. I think the microcontroller is working correctly and sends commands to the Bluetooth module via SPI although I don't know the protocol...

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Still hoping for schematics..
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Re: Lenovo 12th gen Ideapad 3i NM-E341
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Re: Lenovo 12th gen Ideapad 3i NM-E341

Many thanks!

Any schematics?

Tim

Lenovo 12th gen Ideapad 3i NM-E341 Schematics

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Would be most grateful if anyone has boardview/schematics

Thanks

Tim

Re: New Members - please post your introductions here

Hello, I'm Tim. I do occasional repairs and also design PCBs.