Use voice verification: Wait 60 seconds, then select Voice Verification to receive a call instead of an SMS. Cooling period after failure: If you see “SMS sending failed,” wait about 2 hours before trying again. Number portability issues: If you recently switched carriers while keeping the same phone number, delivery issues may occur. Please inform customer support for further assistance.

You'll then be able to log in with voice, email, or authenticator app code depending on the platform. Switching verification method in the app Switching verification method on the webI want to reset my phone number You can reset your phone number completely, both in your OKX account and on the login page. To do this, follow this guide: How do I reset Two-factor authentication (2FA)?

You'll then be able to log in with SMS, voice, or email code depending on the platform. Switching verification method in the app Switching verification method on the webI want to unlink my authenticator app You can unlink your authenticator app completely, both in your OKX account and on the login page. To do this, refer to the guide below: How do I change my authenticator app?

Just follow the voice prompts: select 1 to confirm authorization or 2 to cancel it. You can request up to 5 phone verification calls in 1 hour. Email verification: when you request email verification, we'll send a link to the email linked to your account. Open this link to confirm authorization. If you can't open the link from email, try copying and pasting it to your browser.