Can't reregister device after deleting application

[BoRRoZ]

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How can I reuse hardcoded AppEUI and AppKey after I deleted an application?

@htdvisser, two years later, but this seems to be the proper topic to tell people how to proceed if things have changed: Can one delete an application that still has devices registered to it? If yes: would not deleting the devices before deleting an application orphan those devices, or would they be unregistered on the fly? Would re-using the same AppEUI, AppKey and DevEUI work when an earlier device registration with the same details once existed? I know you once wrote on Slack: @…