Medium riskMarketplace Scams

Blocked Phone Sale Scam

A blocked phone sale scam involves a second-hand handset that looks fine but is stolen, blocklisted by its IMEI, or still tied to the previous owner's account. After you pay, the phone may lose network service, refuse to activate, or stay locked behind someone else's login. Checking the IMEI status and confirming any account lock is removed before handing over money is the key protection.

Quick verdict

Risk level
Medium risk
Scam type
Second-hand goods scam
Main red flag
The seller won't let you check the IMEI or confirm the phone is signed out of the previous owner's account before you pay.
What to do first
Before paying, get the IMEI, check its blocklist status, and confirm the device is fully removed from any cloud or activation account.

What this scam usually looks like

A blocked phone sale scam involves a second-hand handset that looks fine but is stolen, blocklisted by its IMEI, or still tied to the previous owner's account. After you pay, the phone may lose network service, refuse to activate, or stay locked behind someone else's login. Checking the IMEI status and confirming any account lock is removed before handing over money is the key protection.

Example message pattern

Example pattern — not a real report
Example pattern: "Selling my phone, perfect condition, cheap because I need a quick sale. It's all set up and ready to go. No need to check the IMEI, I promise it's clean. Can you pay now and collect later? I can't meet to switch it on but I'll post it once payment lands."

This is a fictional, anonymised example used to illustrate the pattern. It is not a verified real message, and any names are used only to show how the scam typically reads.

Red flags to watch for

  • The seller refuses or avoids giving you the IMEI to check the device's blocklist status before payment.
  • The phone is still signed in to the previous owner's cloud or activation account and they 'haven't got round to' removing it.
  • The price is unusually low and the seller stresses a 'quick sale' to discourage checks.
  • The seller will not meet in person to power the phone on, insert a SIM and demonstrate it working.
  • You are asked to pay first, with collection or postage promised only after the money has gone through.

What to do

  • Ask for the IMEI (dial *#06# or check Settings) and check its blocklist status before paying.
  • Confirm the handset is fully signed out of any activation or cloud account and reset to factory settings in front of you.
  • Meet in person where possible, insert a working SIM, and test calls, data and activation before handing over money.
  • Pay by a traceable method that offers some buyer protection rather than untraceable cash or transfer to a stranger.

If you already clicked or replied

  • If the phone is blocked or locked after purchase, contact the seller and request a refund, keeping a record of the exchange.
  • Report a blocklisted or suspected stolen handset to the marketplace and, if appropriate, to the police.
  • Ask your card or payment provider about a dispute if you paid through a method with buyer protection.
  • Keep the listing, messages, receipt and the IMEI so you can support any report or claim.

What not to do

  • Do not pay before checking the IMEI and confirming the account lock is removed.
  • Do not accept 'I'll remove the account later' as a reason to complete the sale.
  • Do not buy a phone you cannot power on and test, especially at a suspiciously low price.

Similar scams

High risk Online Shopping

Fake Online Store Scam

This scam sets up a convincing but fake store with very low prices, takes payment, and delivers nothing, a counterfeit, or a cheap substitute.
High risk Marketplace

Electronics Deposit Scam

This scam advertises a cheap phone, games console, or laptop, then asks you to send a deposit to 'hold' or 'reserve' the item before you can meet or before it ships. After you pay, the seller disappears.
Medium risk Marketplace

Bait and Switch Listing Scam

This scam uses an attractive, underpriced listing as bait. Once you enquire, the seller says the item is gone and pressures you toward a different, inferior or overpriced item, or to pay a deposit on a 'similar' one.

Frequently asked questions

What does a 'blocked' or 'blocklisted' phone mean?
It usually means the IMEI has been flagged, often because the phone was reported lost or stolen or has unpaid bills. A blocklisted handset can lose mobile network service, sometimes on all networks in a country.
How do I find and check the IMEI?
Dial *#06# on the phone or look in the settings under 'About'. You can then use a reputable IMEI-checking service to see whether the device is reported as blocked before you decide to buy.
What is an account or activation lock?
Many phones tie the device to the owner's cloud account so it cannot be used until they sign out. If the previous owner has not removed it, you may be unable to activate or fully use the phone after buying it.
Is a cheap second-hand phone always a scam?
No, plenty of genuine bargains exist. But a low price combined with resistance to IMEI checks, account removal or an in-person test is a pattern commonly seen in blocked-phone scams, so extra caution is wise.

Last reviewed: June 2026

Disclaimer: This page provides educational information only to help you recognise common scam patterns. It is not legal, financial, cybersecurity, or law enforcement advice, and it does not confirm whether any specific message, company, or person is genuine or fraudulent. When in doubt, contact the official organisation directly and report concerns to your local authorities.