Norton 360 Product Key Activation Work -

Cause: You have an expired Norton product still installed, and the new key refuses to overwrite.

Fix:

POST /deactivate accountId, deviceId, entitlementToken

GET /license/accountId -> license summary and available seats

POST /offline-request deviceFingerprint -> returns signed request file token

POST /verify-offline signedResponseFile -> returns entitlementToken

Include idempotency keys on activation requests to avoid double-processing. norton 360 product key activation work