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

Forum|Forum|12 days ago
November 8, 2025
9 replies
55 views

Zipme
Contributor I

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!

N

+19

nik9669a
Senior Virtuoso
Forum|Forum|12 days ago
November 8, 2025

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.