Apple just released a small update to the iPhone 7 and iPhone 7 plus that fixes a few bugs including an issues where some users could temperately lose cellular connectivity. Not a large update but this is recommend if you are experiencing this issue. Initially it was mainly Verizon users, but it appears the bug was affecting other carriers as well. No official jailbreak for the iPhone 7 yet, so you are free to update.
Here are the direct download links:
- iOS 10.0.3 (Build 14A551) for:
Remember you can find all the old iOS downlaods here: http://leimobile.com/firmware-downloads/