C6 Wi‑Fi Processor Recovery
Supported P4 panels use a separate ESP32-C6 processor for Wi‑Fi. Use this recovery installer if your panel:
- repeatedly disconnects or has an unreliable connection;
- cannot complete its first Wi‑Fi setup;
- disappears from Home Assistant after restarting; or
- reports ESP32-C6 firmware manifest timeouts in its USB log.
The recovery download contains both the latest EspControl firmware and its matching C6 firmware. The P4 transfers the C6 update internally, so the repair does not need working Wi‑Fi or internet access after the USB download has completed.
This reinstalls EspControl
Export your configuration from Settings > Backup first when the panel is still accessible. Recovery normally preserves saved configuration, but preservation cannot be guaranteed after damaged or previously erased flash.
Run the Recovery
- Use Chrome or Edge on a desktop computer.
- Connect the panel's normal P4 USB programming port with a data-capable cable.
- Select the exact panel model and revision below.
- Confirm the selection, then choose Repair C6 and reinstall EspControl.
- If the installer offers to erase the device, leave that option off to preserve saved configuration where possible.
- Keep USB power connected after the browser finishes. The panel updates the C6 internally and restarts automatically.
After the restart, reconnect the panel to Wi‑Fi if needed and confirm that it stays available in Home Assistant.
If Recovery Cannot Communicate with the C6
The normal USB socket connects to the P4, which then communicates with the C6 over the board's internal SDIO connection. A completely non-responsive C6 cannot be repaired through that path.
Some boards expose a separate C6 UART programming header. Direct recovery through that header requires a compatible 3.3 V USB-to-UART programmer and the exact wiring for the panel. Collect a USB startup log and open a GitHub issue before attempting that advanced procedure.
Next: Troubleshooting