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Novaz AuthenticatorGET

OKX 2FA: how to set up an authenticator app

By the Novaz team · Updated October 29, 2026
Novaz steps checked against version 1.0.5

On this page
  1. Before you start
  2. Turn on 2FA with an authenticator app
  3. Save the setup key
  4. When OKX asks for a code
  5. If OKX rejects your code
  6. Changing phones
  7. If you lose your authenticator
  8. Turning 2FA off
  9. Official OKX help

Your OKX account is where you buy, trade and withdraw crypto on the OKX exchange. Besides the password, OKX offers email and phone verification, an authenticator app, face verification and passkeys. Once an authenticator app is linked, OKX asks for its code when you withdraw or change security settings (OKX).

The app is optional for most accounts, though VIP users without one see a daily reminder in the OKX app (OKX). OKX names Google and Microsoft Authenticator but accepts any authenticator app (OKX). This guide uses Authenticator App - Novaz on iPhone. Other apps work the same way.

How we checked this guide: the OKX steps come from OKX's own help center, linked below, which we read on October 20, 2026. We haven't tested them on an OKX account, so a label may differ slightly. OKX's articles also name the same menu differently (Profile and Settings in one, Account settings in another). The Novaz steps are checked against the app, version 1.0.5.

Before you start

  • OKX wants your email and phone verified before you link an authenticator (OKX).
  • Changing or resetting the authenticator later blocks withdrawals and P2P trading for 24 hours (OKX).
  • As an optional extra, OKX suggests keeping the authenticator on a device that doesn't have the OKX app (OKX).

Turn on 2FA with an authenticator app

On the website (OKX):

  1. Sign in at okx.com and go to Profile > Security.
  2. Find Authenticator app and select Set up, then I've downloaded one.
  3. OKX shows a QR code with the setup key below it. In Novaz, tap +, then Scan QR code, and point the camera at the screen.
  4. Select Continue, type the 6-digit code from Novaz, and select Confirm.

In the OKX app, open the Main menu, then Profile and Settings > Security, and under Authentication methods select Authenticator app. The QR code is then on the same iPhone as Novaz: take a screenshot, then tap + in Novaz and Choose a photo (scanning a QR code on the same iPhone). Finish by typing the Novaz code into the New Authenticator App field (OKX).

To type the key instead, tap +, then Enter key manually, and fill in Service, Account (optional) and Setup key. OKX gives the code length (6 digits) but not the other settings, and manual entry in Novaz assumes 30-second codes and a key of at least 16 characters. Scanning is the safer choice. See What is a 2FA setup key?

Save the setup key

OKX's help never mentions backup or recovery codes. Instead, it tells you to keep the setup key somewhere safe, warning that a lost or replaced phone may otherwise lock you out (OKX).

Even if you back up Novaz with iCloud backup or an encrypted backup file, keep the key: it rebuilds OKX's codes on any phone when that backup is missing or out of date. Store it in a password manager or on paper, not in your photo library. Anyone who has it can make your codes.

OKX also advises turning off cloud sync in authenticator apps (OKX). Novaz only puts a copy in iCloud if you turn on iCloud backup (PRO), and that copy is end-to-end encrypted through iCloud Keychain. A password-protected backup file keeps nothing in the cloud.

When OKX asks for a code

  • Withdrawals and security changes (OKX).
  • Changing your login password (OKX).
  • A new device. One way to authorize it is security verification, with a code from every method you've linked. OKX may also run facial recognition, and the steps depend on your country (OKX).

If OKX rejects your code

OKX's checklist (OKX):

  1. Let the phone set its own clock: Settings > General > Date & Time > Set Automatically. Novaz warns you when the clock is 15 seconds or more off.
  2. Make your computer's clock match the phone's.
  3. Clear the OKX app's cache, or your browser's cache and cookies.
  4. Try another platform: the website on a computer or phone, the desktop app, or the mobile app.

If none of that works, OKX's answer is to change or unlink the authenticator. More causes are in Authenticator code not working?

Changing phones

While you can still sign in, use Change authenticator app (OKX). In the app it's under Main Menu > Profile and settings > Security > Authenticator app. On the web, go to Profile > Security, select Change next to the authenticator app, then Continue. OKX confirms by email or text, and the 24-hour withdrawal pause applies.

With a Novaz iCloud backup or backup file, you can restore OKX on the new iPhone instead (moving to a new iPhone). If you saved the setup key, you can also type it on the new phone with Enter key manually, since the same key gives the same codes. Remove OKX from the old phone (Remove account) only once the new one works.

If you lose your authenticator

If the authenticator is on for sign-in, you can still get in: choose Switch verification method in the app or Switch to phone verification on the web, and use an SMS, voice or email code (OKX). Then, in the app's Security page, open the authenticator app under Authentication methods, choose Change authenticator app > Reset authentication method, pick Authenticator app and follow the prompts (OKX).

If you're stuck at the 2FA prompt, choose Unable to verify? > Reset two-factor authentication. You can only do this in the OKX app: the website sends you there (OKX, OKX).

  • OKX doesn't list what the reset checks, but its reset page links to help for failed facial recognition (OKX).
  • A self-frozen account can't be reset. If you can't sign in at all, contact OKX from the sign-in page (OKX).
  • OKX doesn't say how long a reset takes. Afterwards, withdrawals and P2P trading pause for 24 hours.

More in Lost the phone with your authenticator app?

Turning 2FA off

OKX's reset article says plainly: "Two-factor authentication can't be turned off." (OKX). You can unlink the authenticator app itself, OKX says, but the guide it points to doesn't spell out those steps (OKX).

Official OKX help

More guides: Crypto exchanges and wallets