Open "BOCOM (HK) Securities" Mobile app, then login with your Username and Password for new device.
Input "Security Code" or "SMS Password" for verification, then click "Submit".
Click Activate Again.
Read the Mobile Authentication introductory page and click "Activate Mobile Authentication Now".
Input "Security Code" or "SMS Password" for verification, and confirm the Terms and Conditions.
Click Continue to disable your existing Mobile Authentication and then re-activate Mobile Authentication for new device.
Set up "Mobile Authentication Password", and click "Confirm".
Mobile Authentication has been activated successfully. You can now log onto Securities Mobile App using your "Mobile Authentication Password". You may also click "Activate Biometric Authentication" to activate Biometric Authentication.