Bosch EasyControl shows error C10 and fails to complete pairing with the Bosch EasyControl app or Bosch ID account.

Safety first: No electrical risk; this is a configuration issue.

• 1. Verify Bosch ID: Confirm that you can log into the Bosch ID portal or another Bosch app with the same credentials. Reset the password if necessary.
• 2. Check device ownership: If the EasyControl was previously installed in another property or by another user, it may still be linked to their account. Request that the previous owner removes the device from their Bosch account, or contact Bosch support with proof of ownership.
• 3. Network time: Ensure your router has correct date and time (via NTP). Incorrect time can cause certificate validation failures.
• 4. Retry registration: Factory reset the EasyControl only if you are sure you can reconfigure it. Then follow the app’s pairing process carefully, ensuring the phone is on the same local network.

Professional help: Persistent C10 errors after these steps may require Bosch backend support to clear the device registration or investigate account issues.