Error Code: 50105

Meaning:

The API passphrase you entered during manual binding doesn't match the one set in your OKX account.

The passphrase is created when you generate an API key in OKX → API Management. It's case-sensitive (e.g., "Abc123" ≠ "abc123").

You'll see this error if:

• The passphrase is mistyped

• You're using an old/deleted key

• Special characters aren't entered correctly

Solutions:

1. Use Fast API in CoinTech2u to automatically avoid passphrase errors.

2. If you're still using manual API binding and you forgot the passphrase:

• Go to OKX → API Management.

• Delete the old API key and create a new one.

• Save the new passphrase securely and rebind with CoinTech2u.