Hello, and a warm welcome to the forum!
It’s really frustrating that your G410 keeps acting up. As discussed in another forum thread, the G410 is unfortunately very sensitive to direct sunlight.
Aqara seems to be aware of these limitations and points them out in the FAQ:
Firmware Updates
Aqara has announced and released official firmware updates for the G410 specifically aimed at fixing the video/connection issues caused by direct sunlight. However, some users still report that their G410 drops offline in direct sun despite running the latest software.
What firmware version is currently installed on your G410?
Power Supply
A quick question: How is your G410 currently powered—by batteries or is it hardwired? Heat from direct sunlight can put a heavy strain on batteries, which might further destabilize the system.
The Ideal Installation Spot
To truly get this issue under control, the best solution is usually an installation location that protects the G410 from both rain and direct sun. A small canopy or setting it slightly deeper into a wall niche is often enough to keep the lens in the shade.