renew expired device certificate (iOS)

[j_kubi]

I have a pair of iPads where the device certificate has expired, and they no longer seem to be communicating with our instance.

How can I renew these certs, or otherwise get these in working order again?

[afnpw]

I do believe they will need to be wiped and reenrolled into Jamf. 

[AJPinto · Accepted solution]

You will need to reinstall iPadOS. If you have the ability to reinstall iPadOS restricted with a configuration profile you will need to use DFU mode. Then reenroll in to MDM.

[j_kubi]

Thanks, DFU was the step I needed.

It was offline long enough to have its device cert expire, so there was nothing I needed to save on it in my case.

[jobscommasteve]

So if a device is offline long enough to where the cert expires, it needs to be DFU restored in order to be re-enrolled? Noted.