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Troubleshooting
Masyukov Pavel edited this page May 24, 2026
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1 revision
- Verify Bluetooth is enabled.
- Verify ESP32 is advertising DFU UUID.
- Increase scan duration.
- Keep phone close to device.
- Lower MTU setting.
- Adjust PRN value.
- Recheck firmware binary validity.
- Rebuild firmware from clean environment.
- Ensure metadata format matches firmware parser.
- Check device power stability.
- Confirm device re-advertises after disconnect.
- Retry with auto reconnect disabled for baseline diagnostics.