Firmware so mic works

2026-09-25 17:14:31 Ask

Hi I recently tried some different firmware and can not find one that allows mic to work what firmware does this robot use by default?

Regards

Mike

firmware otto bot

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SpotPearGuest57d4d

Answer time:2026-09-29 18:26:53

https://spotpear.com/wiki/ESP32-S3-AI-DeepSeek-XiaoZhi-Robot-1.54-inch-LCD.html#%E3%80%90Restore%20factory%20firmware%E3%80%91

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SpotPearGuest66b2f

Answer time:2026-10-07 11:09:53

Hi Mike,

I'm experiencing a very similar issue with my Spotpear ESP32-S3 OTTO robot.

After flashing different firmware versions, I started having problems with the microphone, and I'm trying to identify the correct firmware for this specific hardware.

I have also contacted Spotpear support, and they suggested trying different firmware versions, explaining that newer releases may not always be fully tested.

Could you or anyone from Spotpear please confirm the exact firmware version originally installed on this robot, including the correct download link?

It would also be helpful to know whether the official XiaoZhi firmware fully supports the OTTO robot's microphone and audio hardware, or if a specific Spotpear-customized firmware is required.

I believe having the exact firmware version and a reliable recovery procedure would help other users avoid the same problem.

Thank you!

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