Security Guide 2026-08-05 · IMEICheck Editorial Team · 8 min read

Samsung Blacklist Check Guide

Samsung is the world's largest Android manufacturer—making it a prime target for theft and fraud. Learn how to check if a Samsung phone is blacklisted before buying.

Why Samsung Phones Get Blacklisted

Samsung phones are among the most commonly blacklisted devices due to their popularity and resale value. Common reasons for Samsung blacklisting include:

A blacklisted Samsung cannot connect to any cellular network worldwide. See our stolen phone check guide and IMEI check before buying guide.

How to Check Samsung Blacklist Status

Method 1: IMEICheck (Most Comprehensive)

Use IMEICheck for a comprehensive Samsung blacklist check:

  1. Dial *#06# on the Samsung phone to get the IMEI
  2. Or go to Settings → About phone → Status information → IMEI
  3. Enter the 15-digit IMEI on IMEICheck
  4. Review the blacklist status in the comprehensive report

IMEICheck queries GSMA global blacklist, carrier databases, and Samsung's own records.

Method 2: Carrier-Specific Checks

Check with individual carriers:

Method 3: CTIA Stolen Phone Checker (US Only)

Visit stolenphonechecker.org and enter the IMEI for a free US blacklist check. Note: only covers US reports.

Method 4: Samsung Members App

On the Samsung phone itself:

  1. Open the Samsung Members app
  2. Go to SupportPhone diagnostics
  3. Check device status information

Note: Samsung Members doesn't show GSMA blacklist status directly, but can show device authenticity and warranty.

Method 5: SIM Card Test

Insert a working SIM card and try to make a call. If "No Service" appears with a valid SIM, the phone may be blacklisted. Also check for Samsung Knox warranty status.

Samsung Blacklist Status Types

Status Meaning
Clean Not blacklisted—safe to buy
Blacklisted (Stolen) Reported stolen—cannot use cellular
Blocked (Unpaid) Carrier blocked for unpaid bills
Financed Still under financing—may be blocked if payments stop
Under contract Still under carrier contract

Samsung-Specific Security Features

Samsung phones have additional security features that are important when checking used devices:

Samsung Knox

Samsung Knox is a hardware-level security platform. If Knox is tripped (usually from rooting or custom firmware), the warranty is void and Samsung Pay stops working. Check Knox status in Settings → Biometrics and security → Knox. See our Samsung Knox warranty guide.

Samsung Reactivation Lock

Similar to Apple's Activation Lock, Samsung Reactivation Lock prevents the phone from being set up after a factory reset without the original Samsung account credentials. Check: Settings → Biometrics and security → Find My Mobile → Reactivation Lock.

Google FRP

Samsung phones also have Google Factory Reset Protection. Ensure the seller removes their Google account before factory reset. See our activation status guide.

What to Do If Your Samsung is Blacklisted

If You're the Original Owner

  1. Contact your carrier immediately
  2. Provide proof of purchase and identification
  3. If recovered after theft report, inform the carrier
  4. Settle any unpaid bills
  5. Carrier removes the IMEI from blacklist within 24-72 hours

If You Bought a Blacklisted Samsung

  1. Contact the seller and demand a refund
  2. File a dispute with the payment platform
  3. Report to the marketplace
  4. File a police report if stolen
  5. Do NOT use IMEI cleaning services

Buying a Used Samsung: Complete Checklist

  1. Check the IMEI: Dial *#06# and run a blacklist check on IMEICheck
  2. Check Knox warranty: Verify Knox hasn't been tripped (see Knox guide)
  3. Check Reactivation Lock: Ensure Samsung account is removed
  4. Check Google FRP: Verify Google account is removed
  5. Check carrier lock: Verify the phone is unlocked or compatible
  6. Check warranty: Verify warranty status through Samsung Members or IMEICheck
  7. Test with your SIM: Insert your SIM and test calls, SMS, and data
  8. Check for updates: Ensure the phone receives security patches
  9. Test all features: Camera, Samsung Pay, fingerprint, Bluetooth, WiFi
  10. Factory reset: Ask the seller to factory reset in your presence

For more tips, see our fraud prevention guide and originality guide.

FAQ

How do I check if my Samsung is blacklisted?

To check if your Samsung is blacklisted, dial *#06# to get the IMEI, then use an IMEI check service like IMEICheck that queries the GSMA global blacklist. You can also check on carrier websites (AT&T, Verizon, T-Mobile) or use the free CTIA Stolen Phone Checker for US devices.

Can a blacklisted Samsung phone be used?

A blacklisted Samsung phone cannot connect to cellular networks for calls, SMS, or mobile data. However, it can still use WiFi, take photos, and run apps. A blacklisted Samsung has very low resale value and should not be purchased. The phone may also have Samsung Reactivation Lock or Google FRP preventing full use.

How do I remove a Samsung from the blacklist?

To remove a Samsung from the blacklist, contact the carrier that reported it. If stolen, provide proof of purchase and may need law enforcement involvement. If blacklisted due to unpaid bills, settle the balance. Once the carrier clears the IMEI, the GSMA global blacklist updates within 24-72 hours. Do not use IMEI cleaning services as they are often scams.

What is Samsung Knox warranty void?

Samsung Knox Warranty Void status indicates whether the device's Knox security has been tripped, usually due to rooting, installing custom firmware, or unauthorized modifications. Once Knox is tripped, it cannot be reset and the warranty is void. This is separate from blacklist status but also important when buying used Samsung phones.

Conclusion

A Samsung blacklist check is essential before buying any used Samsung phone. By checking the IMEI against the GSMA global blacklist, verifying Samsung Knox warranty status, ensuring Reactivation Lock and Google FRP are removed, and testing with your SIM card, you can protect yourself from buying a stolen or blocked device. Samsung's additional security features (Knox, Reactivation Lock) add layers of protection—but only if you check them before purchasing.

Check your Samsung phone now at IMEICheck—enter your IMEI for instant blacklist and device status results.

Check Your Samsung Phone

Enter your IMEI to check blacklist and device status

Check Now →