Problem updating

Err http://ftp.debian.org jessie/main armhf Packages
404 Not Found
Fetched 4594 kB in 2min 8s (35.8 kB/s)
W: Failed to fetch http://ftp.debian.org/debian/dists/jessie/main/binary-armhf/Packages 404 Not Found

E: Some index files failed to download. They have been ignored, or old ones used instead.

I get this on apt-get update. Should I just wait and see if it goes away?

Try to copy the URL to your browser and see if you get a reply. If not just wait some time.

I get 404 just the same. I’ll try again later, thanks.

That’s the best indication that not your device but most likely the mirror has an issue.