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Wait up to 24 hours for your mobile device to build up a Temporary Exposure Key.
After 24 hours, request a new verification code and submit again.
To check for keys, open Mobile Application -> Settings (Gear Icon) → EN Debug Menu → Show Local Diagnosis Keys (Note: This debug menu may not be available)
Reactivating EN Permissions after Migrating to New iPhone
Apple has also informed us of when migrating to a new device EN Permissions need to be reactivated for 14.0, 14.1.
Some options to take:
Turn off Exposure Notifications (in Settings > Exposure Notifications), then open the app to go re-onboard.
Delete, reinstall and launch the app.
Set the region as active. To do this, the user should go into Settings > Exposure Notifications > No Active region > your region in the Authorized Regions section > tap “Set As Active Region”. Then launch the app.