You have to unscrew the front of the camera and take the lens off. It's a ridiculous design. Then the slot is inside hidden. Google it and it will show you what screws to remove. Will need a tiny screwdriver. I guess they do that so people don't steal your sd card? Lol
FYI foscam sent me new firmware and I was able to install it using the SD card. Disaster averted. Was surprised their support was so good. Took a couple days, but got fixed in the end.
I logged in to my foscam app today to view one of my cameras, and I was prompted to install a new firmware update. It said the update optimized cloud storage.
The process completed successfully,but after it went back to view the camera, it would not connect. Lights are on on the network cable...