Can't reregister device after deleting application

[BHTTN]

Hi there, I have a problem to register my device in the right application. I opened a test application (test_case_bh_temperature) where I registered my device first. Later I deleted this application, but probably without deleting the device first. Now I can’t reregister the device in another application. In

ttnctl I get:

U:>U:\ttnctl\ttnctl.exe applications add test_case_bh_temperature test
FATAL Could not add application error=An app with the application id test_case_bh_temperature already exists

U:>U:\ttnctl\ttnctl.exe applications info test_case_bh_temperature
FATAL Could not find application error=You do not have access to for right settings to application test_case_bh_temperature

Which means I can’t unhook my device.
Help is appreciated

[BoRRoZ]

after deleting you must change your device name to use it again.
deleting doesn’t mean it’s completely ‘gone’ from the server.

[BHTTN]

Thanks for your respond. The problem is, that the device EUI is linked to the old application, and I can’t change the EUI of the device…

[BoRRoZ]

see

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: @…

[BHTTN]

Do I understand right, that I have to wait for the new version of the backend until I can use the device again?

[BoRRoZ]

@BHTTN

the device EUI is linked to the old application, and I can’t change the EUI of the device

that’s a problem then, I don’t know a solution @ this moment.
maybe @kersing or @htdvisser knows one ?

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

Devices need to be deleted in order to release their IDs/EUIs for future registrations. Due to the way our registries work, deleting an application does not implicitly delete devices under that application, so users need to delete their devices explicitly before deleting an application. The v2 console tries to delete devices, but there are not guarantees that this succeeds. The v2 CLI (ttnctl) does not try to delete devices. The reason for all this is that in our v2 backend, applications are re…

[kersing (Jac Kersing)]

Using the console you can add a device to a new application using the same Device EUI. The new registration will provide you with a new Application EUI and Application Key which you should use to configure your device. If none off the values mentioned can be changed you will need to contact someone from TTN core team and ask them to delete the device from the database. Not sure they are able to help as with 87317 developers using the (free) platform and making mistakes helping everyone would require a helpdesk staffed with several full time FTEs