Binance App often shows error codes when login fails. This article lists the meanings and solutions for the 5 most common codes. Download entry: Binance Website, mobile Binance Official App, if you don't have the App on iOS, see the iOS Install Guide.
1. Error Code Reference
| Code | Meaning | Solution |
|---|---|---|
| 1003 | Too many requests / IP rate limit | Wait 5-10 minutes |
| 4000 | Incorrect account / password | Re-enter / Reset password |
| 4001 | Regional restriction | Switch IP or region |
| 4002 | Account frozen | Contact customer service |
| 4003 | 2FA verification failed | Re-enter / Rebind |
2. 1003: Too Many Requests
Multiple failed login attempts in a short time will trigger IP rate limiting. Solution:
- Close the App and wait for 5-10 minutes.
- Switch to mobile data and try again (IP changes).
- Do not frantically tap the login button — it accelerates rate limiting.
3. 4000: Incorrect Account or Password
The most common one. But it needs to be differentiated:
- Genuinely mistyped: Check Caps Lock and spaces.
- Password was changed: The account might be compromised; reset immediately.
- Logged into the wrong account: Might be using a different email.
If you are certain the password is correct but still get 4000, strongly suspect the account has been altered. Immediately:
- Use the bound email to "Retrieve Password".
- Change the password after receiving the reset email.
- Check your login history for anomalies after logging in.
4. 4001: Regional Restriction
Binance determines login eligibility based on IP and KYC country. Trigger reasons:
- Mainland China IP + KYC China → Some functions restricted.
- US IP + KYC Non-US → Completely locked.
- Hopping VPNs too quickly → Risk control triggered.
Solution:
- Choose a stable and compliant exit IP.
- Do not switch regions frequently.
- If you really need to change your KYC region, submit compliance documents through the official process.
5. 4002: Account Frozen
Freezes are divided into two types:
Proactive Freeze (Triggered by You)
If you clicked "Disable Account" (in device management or account security), you need to contact customer service to unfreeze it.
Risk Control Freeze
Binance automatically freezes based on risk signals. Common signals:
- Abnormal login IP.
- Large withdrawal attempts.
- Sudden change in device fingerprint.
Solution: Submit a customer service ticket with evidence of your identity. It usually takes 1-3 working days to unfreeze.
6. 4003: 2FA Failed
Reason 1: Time Out of Sync
Google Authenticator relies on time. If your phone's time is wrong, all codes will be incorrect. Settings → Time → Auto-sync.
Reason 2: Not Migrated After Device Change
Reinstalling Authenticator on a new phone without importing the old seed will result in incorrect codes.
Reason 3: Backup Codes Depleted
After using up all 8 backup codes, you can only contact customer service to reset 2FA.
Solution
- Check the time.
- Log in using a backup 2FA (SMS / Email).
- If no backup is available → Contact customer service for the "Reset 2FA" process, which takes 1-3 days.
7. Other Common Errors
- Error -2010: Insufficient balance to place order.
- Error -1021: API timestamp deviation.
- Error 1100: System maintenance.
- Error -1111: Precision error.
These are mostly API invocation errors and are rarely seen by App users.
8. When to Contact Customer Service
Submit a ticket if any of these conditions are met:
- Errors you cannot troubleshoot yourself.
- The same error repeatedly occurs for more than 24 hours.
- Suspect the account is abnormally frozen.
- Error is accompanied by "account compromised" symptoms.
When submitting, include: account email, device model, error code screenshot, and time of occurrence.
FAQ
Q1: Will error codes expose account information? No. The codes are merely technical identifiers.
Q2: Does a 4001 error mean the account is banned? Not necessarily. Most are regional restrictions and will recover after switching IPs. A true ban is 4002.
Q3: How long does 1003 take to recover? Usually 5-10 minutes. Repeated triggers will extend the time.
Q4: Where can I check authoritative explanations for error codes? The Binance Developer Document (developers.binance.com) has a complete list of API error codes.