1.Which seller did you purchase the product(s) from?
amazon
2.The Model number of the product(s) you have purchased?
ov9281
3.Which Platform are you using the product(s) on?
Raspberry Pi 3B+/4B
4.Which instruction are you following?
https://www.arducam.com/docs/cameras-for-raspberry-pi/mipi-camera-modules/camera-userland-driver-sdk-and-examples/
5.Has your product ever worked properly?
no
6.What problems are you experiencing?
I did all the steps
but when I send the code (./arducamstill -?) I get a message
When I send this command, didnot respond and i dont have a image
7.What attempts at troubleshooting have you already made?
8.How would you like us to help you?