The APNs certificate does not match the CSR. Provide the correct APNs file (.pem) or submit a new CSR.
Description
You may receive an error message when you try to register the APNs certificate if you did not upload the most recently signed CSR file from BlackBerry to the Apple Push Certificates Portal.
Possible solution
If you downloaded multiple CSR files from BlackBerry, only the last one that you downloaded is valid. If you know which CSR is the most recent, return to the Apple Push Certificates Portal and upload it. If you are not sure which CSR is the most recent, obtain a new one from BlackBerry, then return to the Apple Push Certificates Portal and upload it.