Contributor I

Sonos Playbar won’t boot – solid white light and only “NAND Boot…” via JTAG

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Hi everyone,

I have a Sonos Playbar that shows a solid white light immediately after plugging in the power (not flashing). Nothing else happens — it doesn’t boot or respond.

I connected a JTAG interface and it only outputs “NAND Boot…”. It seems like the u-boot bootloader might be corrupted or not starting properly.

Has anyone encountered this issue before or managed to recover a Playbar in this state?

Would it be possible to reflash the u-boot using a programmer, and if so, what tools or procedure would be needed?

Thanks in advance for any help or advice!

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nik9669a

Senior Virtuoso

Hi everyone,

I have a Sonos Playbar that shows a solid white light immediately after plugging in the power (not flashing). Nothing else happens — it doesn’t boot or respond.

I don’t quite understand what you’re trying to do. The solid white light says the device is ready to use.

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ZipmeAuthor

Contributor I

When you connect the power it will flash white first. This one does not flash at all, it’s solid white.

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nik9669a

Senior Virtuoso

What happens if you try playing tv audio to it via an optical cable? Or streaming music from Spotify or other music streaming service?

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