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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Stanley_4

Grand Maestro

Makes sense the answer to the same problem is the same.

Sonos doesn't support self-repair but doesn't ban posts asking about it so you are unlikely to get more here. You might try searching repair sites and see if you find anything.

It is best to decide if you want the discount or not before opening the case on any Sonos device.

buzz

Grand Maestro

There are some 3rd party repair companies in the UK and EU.

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