I downloaded the l4t cuda tookkit on my PC, put it on a thumb drive, and installed the .deb file onto my jetson using the software center. I am not sure what the next step is, since I can only find people who used the terminal to install in.
You should keep this in a single thread.
The question is which deb file did you get? The repository file, or the actual CUDA? They’re quite different. Installing the repo file does not install CUDA.