Does anyone know for sure if you can get OTA updates if you uproot and reset your tablet? Or is Knox being tripped the thing that causes you to not get OTA?
Depending on root method and version of recovery installed these tablets may complain that they're modified and refuse to update. Fundamentally though the cardinal rule of rooting Android devices is NEVER blindly search for and apply OTA updates once you're rooted unless you know what you're doing. There's no guarantee (other than Nexus devices) that a manufacturer isn't attempting to patch a root exploit as part of their OTA so there's risk of not only losing root but losing the ability to root in the future.
Here's another recent discussion on your question.
Just as an update, after unrooting and doing a factory restore on the tablet, it's still considered "modified" and won't download OTA updates. I guess it goes off knox being tripped. That's to bad. I was looking to sell mine, gonna be harder now.
My understanding is as long as your rooted with stock recovery you will still receive updates, my note 2 had knox tripped but was rooted with stock recovery and I was able to get AT&T kit Kat update.
My understanding is as long as your rooted with stock recovery you will still receive updates, my note 2 had knox tripped but was rooted with stock recovery and I was able to get AT&T kit Kat update.