[Photonicat 2] r7660 Car/UPS Mode issues

Settings:

• Firmware R26.04.0 / r7660; MCU Firmware RA2E1260306000
• Car/UPS mode is enabled with a 1-minute power-off delay after power loss.
• Auto shutdown is enabled after 2 minutes of no Wi-Fi clients.

Situation 1:
Router is off, external power is disconnected, then external power is reconnected.

Expected behavior:

The router should turn on relatively quickly after external power is restored.

Actual behavior:

After restoring external power, the router doesn’t respond for a while (this can range from a few seconds to several tens of seconds).
Then, the yellow/orange indicator lights up and starts flashing slowly.

After a certain period (from a few seconds to several minutes), the green indicator turns on, and the router starts booting.

Note: In Direct Power mode, there is also a delay between power connection and indicator response (usually under 30 seconds), but the router powers on quickly afterward.

Situation 2:
Router is on, and external power is automatically restored with UPS mode active. After some time, external power is disconnected.

Expected behavior:

A log entry should appear in the Power Event Log, similar to the “No Wi-Fi clients” event (e.g., "Idle Countdown Started No Wi-Fi clients, countdown started").
After X minutes (1 minute in my test), a log entry should be generated similar to the "No Wi-Fi clients" event (e.g., "Idle Shutdown Triggered No Wi-Fi clients for X minutes"), and the router should automatically shut down.

Actual behavior:

No entries are made in the Power Event Log.
Some users have reported that the automatic shutdown doesn’t trigger after external power is disconnected in Car/UPS mode.
However, in my tests, the router does shut down after the configured time.

Suggested Improvements:

1. Improve Car/UPS Mode to ensure the router powers on as quickly as possible after external power is restored.
2. Add additional logging in the Power Event Log for Car/UPS Mode events to make troubleshooting easier.
3. Add logging for the event when the router boots into Car/UPS mode due to automatic power restoration (rather than manual power-on via the button). This would help distinguish between automatic power-on and manual power-on, as the automatic shutdown feature may not work (even in Car/UPS mode) if the router is powered on manually.

Hi, Sl

Thank you very much for the detailed feedback and test results.

We have already fixed and improved these Car/UPS mode related functions, including the power-on behavior after external power is restored and additional Power Event Log records for troubleshooting.

The updated firmware is currently still under testing. If everything goes smoothly, we expect to release the official version within the next 1–2 weeks.

After the release, you will be able to upgrade to the new firmware via OTA.

Thanks again for helping us improve the product.

Best regards,
Photonicat Team