Safe buying on eBay Facebook Marketplace and classified ads

Online marketplaces offer great deals on used phones — and attract scammers. Follow these platform-specific safety practices.

Before contacting seller

Compare price to market average — extreme discounts are red flags.
Check seller rating, account age, and review history.
Request IMEI before any payment discussion.

During transaction

Never pay outside platform escrow (Wire, crypto, gift cards).
Use platforms with buyer protection (eBay Money Back Guarantee, etc.).
For local deals, meet in public, verify IMEI on the spot, test with your SIM.

After receiving device

Re-check IMEI immediately upon delivery. If status differs from pre-purchase check, open a dispute within platform deadlines. Screenshot all verification results and messages.

Our tools

Use uapi.relock.net for free model check, then professional verification on relock.net for full status before high-value purchases.

Summary

ABC Fusion provides professional device verification and IMEI status services for authorized resellers, repair shops, and mobile retailers. Our free public checker at uapi.relock.net offers basic model identification. Registered business accounts can access comprehensive carrier, blacklist, warranty, and Apple status checks through relock.net.

Important: Verification results are informational. Always confirm critical purchase decisions with the manufacturer or carrier. We provide status data only — not device modification services on our public website.

Practical tips for buyers and resellers

Whether you buy one phone for personal use or hundreds for resale, the verification workflow is the same: collect IMEI, run database checks, compare results to seller claims, inspect hardware, and document everything. Skipping any step exposes you to fraud, chargebacks, and inventory losses that far exceed the cost of a professional check.

Marketplace platforms increasingly expect sellers to provide IMEI verification reports. Generating a check report before listing builds buyer confidence and reduces return rates. For high-value flagship models (iPhone Pro, Samsung Ultra series), a $0.05–$0.50 verification cost protects a $500–$1,200 purchase — an obvious return on investment.

Common mistakes to avoid

Trusting seller screenshots without running your own independent check.

Checking IMEI 2 instead of IMEI 1 on dual-SIM devices.

Assuming factory reset means activation lock is cleared.

Ignoring finance eligibility on US-import devices.

Buying "for parts" blacklisted phones without understanding legal restrictions in your country.

Industry context

The global used smartphone market moves billions of devices annually. GSMA, carriers, and manufacturers maintain databases specifically to combat theft and fraud. Professional verification services like ABC Fusion connect resellers and consumers to these databases through legitimate API channels — providing the same data access that large refurbishers and insurance companies rely on daily.

Getting started

New to device verification? Start with our free tool at uapi.relock.net to practice IMEI lookup. Read our Knowledge Base categories: IMEI Basics for fundamentals, Buying & Resale Guides for marketplace safety, and Apple Device Guides for iPhone-specific checks. Business users can register for API access and bulk checking on relock.net.