All
FAQ
Announcements
Product documents
Why is my OKX app not working?
This guide explains common causes and practical solutions to help you restore access quickly.Why is my OKX app not working? There are several reasons why the app may stop working or crash.Published on 16 Mar 2026Updated on 6 Apr 20267How does futures spread trading work on OKX Liquid Marketplace?
How futures spreads are traded in crypto? Spread trading involves taking two futures positions in opposite directions: one long, one short. The idea is to make money off the price difference between the two futures – which are also called the two legs of the strategy. The profit a trader makes from this trade comes from the price difference, or spread, between those two contracts. That’s why this...Published on 13 Mar 2024Updated on 10 Sept 20256My mobile phone isn't working, what should I do?
If your mobile phone isn't working properly, or you've lost access to it, or you can't get SMS codes, try the following:My SMS codes aren’t working on OKX Try these fixes first to check if you can get codes working again: Automate your mobile phone time.Published on 22 Aug 2023Updated on 27 Jan 2026466My authenticator app isn't working, what should I do?
If your authenticator app isn't working properly or you've lost access to it, try the following.My authenticator codes aren't working on OKX Try these fixes first to check if you can get your app working again: Sync your authenticator app time. For example, authenticator app has this feature under Settings > Time correction for codes > Sync now. Automate your mobile phone time.Published on 11 Aug 2023Updated on 9 Feb 20262,040Zero-Knowledge Proofs: what are zk-STARKs and how do they work? (zk-Stark V2)
For advanced users, you may refer to the MOOC Course and the academic monograph.How does zk-STARK work? We create a Merkle tree using the hash of each user's account as the leaves. Each account shows balances in USD for various tokens (e.g., BTC, ETH). To handle these balances, we separate its balances into non-negative equities and debts for each token. This way, we only work with positive numbers, making it easier to handle calculations and avoid errors.Published on 21 Oct 2024Updated on 11 Feb 202693Zero-Knowledge Proofs: what are zk-STARKs and how do they work? (zk-STARK V1)
In this article, we'll introduce how it works and explain the general mathematical concept, but if you're interested in diving deeper, start here or here.How does it work? *Execution trace table and Merkle tree constructed for zk-STARK PoR* 1.Published on 10 May 2023Updated on 8 Sept 2025179What are the rules for P2P order cancellation?
How do the rules work?Published on 16 Aug 2023Updated on 21 Apr 20261,781What's a dusting attack?
It's therefore essential to use a secure wallet and keep the details on how to access it to yourself.What's the dusting attack, and how does it work? Dusting itself doesn’t steal coins. Instead, it’s a reconnaissance step: once attackers learn that a certain person controls significant crypto, they may launch phishing, extortion, or targeted scams.How does the dust attack actually work?Published on 4 Oct 2024Updated on 3 Mar 202613Address type upgrade FAQ
Instead, each address now works for all cryptos within the compatible network, so you don’t need to manage multiple formats. Any previously saved addresses have already been automatically upgraded to match these new rules, ensuring smooth and consistent withdrawals across supported cryptos.What happens if I have multiple records of the same address after the address type upgrade?Published on 26 Aug 2025Updated on 30 Dec 2025859How do I adjust the color theme of the trading interface?
You can seamlessly switch between light and dark modes, ensuring optimal visibility and comfort regardless of the time of day or your working conditions. This customization enhances your overall trading experience, allowing you to stay focused and productive for longer periods.Published on 27 Nov 2024Updated on 10 Sept 202523How do I fix errors when submitting my institutional verification?
If you're unable to proceed as you're waiting for your team to prepare certain documents, you can continue working on other parts of the application. Use the progress bar on the side to navigate and fill out any remaining sections. Note: Document should be an original copy (preferably in PDF file format), clear quality, and smaller than 20MB. Please clear your browser’s cache and cookies, and restart your browser before trying again.Published on 10 Oct 2024Updated on 8 Oct 202560OKX Trading Rebate Card - Terms and Conditions
If the valid usage period is the same, the earliest voucher received will be consumed first.How does Trading Fee Rebate calculation works?Published on 9 Oct 2023Updated on 8 Jan 2026352How do I authorize a new device when I log in?
If it doesn't work, you can select Complete verification on the previous page to log in. If none of the previous options work, try our AI chatbot. You can select Contact customer support on the web or Request manual verification on the app to open it. You can also find it in the OKX Support Center on the website or on the app. The chatbot can also connect you to our customer support.Published on 31 Aug 2023Updated on 23 Apr 202613,811OKX P2P verified merchant service agreement
Verification Processing Time Verification may take approximately 14 working days after all required information is submitted.4.Published on 15 Sept 2023Updated on 28 Jan 2026726How can I troubleshoot web or app issues?
Clearing cache is helpful when your crypto app keeps crashing during startup or after updates.Reinstall OKX app If your OKX app is still not working after updates and cache clearing, it’s time for a full uninstall/reinstall: Remove OKX app from your device. Restart your phone. Download the latest version again from the official app store.Published on 11 Feb 2026Updated on 16 Apr 20268