This was the response from Apple Not Happy…
Problem Description/Diagnosis
Issue: customer states that after updating both iPads that both of the smart keyboards are no longer working.
Steps to Reproduce: Confirmed Keyboard is not responding on either iPad.
Tried the keyboard on a known good iPad and it does not work.
Tried a known good keyboard and it does work. Confirmed all iPads are on the same software version.
Cleaned the bronze pins, still does not work.
Restored the iPad and set up to factory settings. The keyboards are still not recognized by the iPad.
Cosmetic Condition: Some grime on the magnetic connector area.
Proposed Resolution: Replace the keyboards out of warranty for $135+tax each
Resolution: Customer Declined
Reason: Repair Cost