What Is an IMEI? Its Origins, Uses, and Whether It Can Be Faked
Understand what an IMEI can—and cannot—tell you before using it to check a phone's identity, warranty, or history.
Read article →Clear device-checking guides
IMEI, Serial Number and Warranty Blog
Official lookup sources, activation-status guidance, and practical IMEI/Serial workflows for individuals, retailers, and businesses.
IMEI & Serial Number Basics
4 articles
What Is a Serial Number, How Is It Different from IMEI, and Can It Be Faked?
Serial numbers identify products with or without cellular service, but no single printed or displayed identifier should be trusted without cross-checking it.
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Check Phone Warranty Across Major Brands with IMEI or Serial
A quick map to official warranty channels — useful before you buy or accept a trade-in.
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How to Look Up an IMEI Online the Right Way
A practical IMEI check guide for buyers and stores — separate identifier lookup from warranty checks, and know result limits.
Read article →IMEI & Apple Glossary
12 articles
What Is Activation on an Apple Device?
A short explanation of Apple device activation, the activation date, and how to read the result on Check Coverage.
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What Is Coverage on Apple Devices?
What Coverage means on Apple Check Coverage: hardware warranty, technical support, and AppleCare+.
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What Is an IMEI? Structure and How to Use It When Checking a Device
A short IMEI glossary: 15-digit structure, dual IMEI, and the limits when using it for Apple warranty lookups.
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What Is a Serial Number? Its Role in Apple Warranty Checks
Serial number glossary: the manufacturer's service code, present even on MacBooks and AirPods with no IMEI.
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What Is a MEID? How It Differs from an IMEI on Apple Devices
MEID (Mobile Equipment Identifier) was used on CDMA networks; today most checks use the IMEI or serial.
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What Is AppleCare / AppleCare+?
AppleCare+ explained: extended coverage, accidental-damage benefits, and how to verify it by serial.
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What Is Lost Mode on Find My?
Lost Mode remotely locks a device, shows a message and can track location — unlike activation status on Check Coverage.
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What Is an IMEI Blacklist?
A blacklist is a carrier-flagged IMEI list (often after a lost/stolen report) — different from Apple's iCloud lock.
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What Is a Refurbished Device?
Refurbished units are tested, repaired and repacked — you still need to check the serial for remaining warranty.
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What Is a Replacement Device?
When Apple replaces a device under warranty, you get a different unit with a new serial — re-check coverage on that serial.
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What Is an ESN?
An ESN is a legacy CDMA identity; today most devices use IMEI/MEID plus a serial number.
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What Is the Purchase Date?
The purchase date is the date on a sales receipt; the activation date is when the device was activated in Apple's systems.
Read article →Concept Comparisons
7 articles
IMEI vs Serial Number: Which Code Should You Check?
A quick comparison of IMEI and serial, with practical guidance for iPhone, iPad, MacBook and AirPods.
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IMEI vs MEID: Which Code Should You Use?
IMEI (GSM/LTE/5G) differs from MEID (CDMA) in format and purpose — Apple checks prefer the serial.
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Coverage vs Warranty on Apple Devices
Warranty usually means hardware Limited Warranty; Coverage is the broader concept on Check Coverage.
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Activation Date vs Purchase Date
The receipt purchase date can differ from Apple's activation date — know the difference to avoid warranty disputes.
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Activation Lock vs iCloud Lock
The two names usually refer to the same Apple ID lock layer on Find My — completely different from “activated” on Coverage.
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How Do GSX and Apple Check Coverage Differ?
GSX, Check Coverage and batch tools serve different workflows; a result field alone does not prove where its data came from.
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Why Doesn't Check Coverage Check iCloud Lock?
Coverage and account locks are separate data layers; a good warranty result does not prove that Find My is off.
Read article →Apple, iPhone, iPad & Mac
7 articlesCheck iPhone IMEI: Genuine Status, Activation, and Warranty
A practical IMEI check workflow for iPhone — activation status, warranty coverage, and what one lookup cannot prove.
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Check iPhone Activation: Still Not Activated or Already Active?
What Not Activated means, what it cannot prove, and how stores bulk-check activation status with Excel.
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Check Apple Warranty with an IMEI or Serial Number
Use the right identifier for each Apple product and understand what Coverage confirms — and what it never will.
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How to Check an iPad Serial Number, Model, Activation, and Warranty
Wi-Fi and Cellular iPad models do not have the same identifiers, but the serial number is the most reliable starting point for an Apple coverage check.
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How to Check a MacBook Serial Number, Model, Warranty, and Purchase Date
A MacBook does not use an IMEI. Its serial number is the primary identifier for checking the model and Apple service coverage.
Read article →Look Up iPhone Information by IMEI: Model, Capacity, Origin
Separate on-device facts, box labels, and Coverage data — avoid wrong expectations about storage, color, or carrier lock.
Read article →Check AirPods Warranty with a Serial Number
AirPods do not use an IMEI like iPhone — the case serial is the primary warranty code.
Read article →Check IMEI/Serial by Device Model
33 articles
How to check the iPhone 16 Pro Max IMEI, activation, and warranty
Buying or inbound-checking a iPhone 16 Pro Max? Learn how to find the IMEI or serial, read Apple Check Coverage correctly, avoid “not activated” mistakes, and when to bulk-check with Excel.
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How to check the iPhone 16 Pro IMEI, activation, and warranty
Buying or inbound-checking a iPhone 16 Pro? Learn how to find the IMEI or serial, read Apple Check Coverage correctly, avoid “not activated” mistakes, and when to bulk-check with Excel.
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How to check the iPhone 16 Plus IMEI, activation, and warranty
Buying or inbound-checking a iPhone 16 Plus? Learn how to find the IMEI or serial, read Apple Check Coverage correctly, avoid “not activated” mistakes, and when to bulk-check with Excel.
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How to check the iPhone 16 IMEI, activation, and warranty
Buying or inbound-checking a iPhone 16? Learn how to find the IMEI or serial, read Apple Check Coverage correctly, avoid “not activated” mistakes, and when to bulk-check with Excel.
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How to check the iPhone 15 Pro Max IMEI, activation, and warranty
Buying or inbound-checking a iPhone 15 Pro Max? Learn how to find the IMEI or serial, read Apple Check Coverage correctly, avoid “not activated” mistakes, and when to bulk-check with Excel.
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How to check the iPhone 15 Pro IMEI, activation, and warranty
Buying or inbound-checking a iPhone 15 Pro? Learn how to find the IMEI or serial, read Apple Check Coverage correctly, avoid “not activated” mistakes, and when to bulk-check with Excel.
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How to check the iPhone 15 Plus IMEI, activation, and warranty
Buying or inbound-checking a iPhone 15 Plus? Learn how to find the IMEI or serial, read Apple Check Coverage correctly, avoid “not activated” mistakes, and when to bulk-check with Excel.
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How to check the iPhone 15 IMEI, activation, and warranty
Buying or inbound-checking a iPhone 15? Learn how to find the IMEI or serial, read Apple Check Coverage correctly, avoid “not activated” mistakes, and when to bulk-check with Excel.
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How to check the iPhone 14 Pro Max IMEI, activation, and warranty
Buying or inbound-checking a iPhone 14 Pro Max? Learn how to find the IMEI or serial, read Apple Check Coverage correctly, avoid “not activated” mistakes, and when to bulk-check with Excel.
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How to check the iPhone 14 Pro IMEI, activation, and warranty
Buying or inbound-checking a iPhone 14 Pro? Learn how to find the IMEI or serial, read Apple Check Coverage correctly, avoid “not activated” mistakes, and when to bulk-check with Excel.
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How to check the iPhone 14 Plus IMEI, activation, and warranty
Buying or inbound-checking a iPhone 14 Plus? Learn how to find the IMEI or serial, read Apple Check Coverage correctly, avoid “not activated” mistakes, and when to bulk-check with Excel.
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How to check the iPhone 14 IMEI, activation, and warranty
Buying or inbound-checking a iPhone 14? Learn how to find the IMEI or serial, read Apple Check Coverage correctly, avoid “not activated” mistakes, and when to bulk-check with Excel.
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How to check the iPhone 13 Pro Max IMEI, activation, and warranty
Buying or inbound-checking a iPhone 13 Pro Max? Learn how to find the IMEI or serial, read Apple Check Coverage correctly, avoid “not activated” mistakes, and when to bulk-check with Excel.
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How to check the iPhone 13 IMEI, activation, and warranty
Buying or inbound-checking a iPhone 13? Learn how to find the IMEI or serial, read Apple Check Coverage correctly, avoid “not activated” mistakes, and when to bulk-check with Excel.
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How to check the iPhone 12 IMEI, activation, and warranty
Buying or inbound-checking a iPhone 12? Learn how to find the IMEI or serial, read Apple Check Coverage correctly, avoid “not activated” mistakes, and when to bulk-check with Excel.
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How to check the iPhone 11 IMEI, activation, and warranty
Buying or inbound-checking a iPhone 11? Learn how to find the IMEI or serial, read Apple Check Coverage correctly, avoid “not activated” mistakes, and when to bulk-check with Excel.
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How to check the iPhone SE (2022) IMEI, activation, and warranty
Buying or inbound-checking a iPhone SE (2022)? Learn how to find the IMEI or serial, read Apple Check Coverage correctly, avoid “not activated” mistakes, and when to bulk-check with Excel.
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How to check the iPad Pro serial, model, and warranty
Buying or inbound-checking a iPad Pro? Learn how to find the serial number, read Apple Check Coverage correctly, avoid “not activated” mistakes, and when to bulk-check with Excel.
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How to check the iPad Air serial, model, and warranty
Buying or inbound-checking a iPad Air? Learn how to find the serial number, read Apple Check Coverage correctly, avoid “not activated” mistakes, and when to bulk-check with Excel.
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How to check the iPad (latest) serial, model, and warranty
Buying or inbound-checking a iPad (latest)? Learn how to find the serial number, read Apple Check Coverage correctly, avoid “not activated” mistakes, and when to bulk-check with Excel.
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How to check the iPad mini serial, model, and warranty
Buying or inbound-checking a iPad mini? Learn how to find the serial number, read Apple Check Coverage correctly, avoid “not activated” mistakes, and when to bulk-check with Excel.
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How to check the Apple Watch Ultra 2 serial, model, and warranty
Buying or inbound-checking a Apple Watch Ultra 2? Learn how to find the serial number, read Apple Check Coverage correctly, avoid “not activated” mistakes, and when to bulk-check with Excel.
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How to check the Apple Watch Series 10 serial, model, and warranty
Buying or inbound-checking a Apple Watch Series 10? Learn how to find the serial number, read Apple Check Coverage correctly, avoid “not activated” mistakes, and when to bulk-check with Excel.
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How to check the Apple Watch Series 9 serial, model, and warranty
Buying or inbound-checking a Apple Watch Series 9? Learn how to find the serial number, read Apple Check Coverage correctly, avoid “not activated” mistakes, and when to bulk-check with Excel.
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How to check the Apple Watch SE serial, model, and warranty
Buying or inbound-checking a Apple Watch SE? Learn how to find the serial number, read Apple Check Coverage correctly, avoid “not activated” mistakes, and when to bulk-check with Excel.
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How to check the AirPods Pro 2 serial, model, and warranty
Buying or inbound-checking a AirPods Pro 2? Learn how to find the serial number, read Apple Check Coverage correctly, avoid “not activated” mistakes, and when to bulk-check with Excel.
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How to check the AirPods 4 serial, model, and warranty
Buying or inbound-checking a AirPods 4? Learn how to find the serial number, read Apple Check Coverage correctly, avoid “not activated” mistakes, and when to bulk-check with Excel.
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How to check the AirPods Max serial, model, and warranty
Buying or inbound-checking a AirPods Max? Learn how to find the serial number, read Apple Check Coverage correctly, avoid “not activated” mistakes, and when to bulk-check with Excel.
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How to check the MacBook Pro serial, model, and warranty
Buying or inbound-checking a MacBook Pro? Learn how to find the serial number, read Apple Check Coverage correctly, avoid “not activated” mistakes, and when to bulk-check with Excel.
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How to check the MacBook Air serial, model, and warranty
Buying or inbound-checking a MacBook Air? Learn how to find the serial number, read Apple Check Coverage correctly, avoid “not activated” mistakes, and when to bulk-check with Excel.
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How to check the iMac serial, model, and warranty
Buying or inbound-checking a iMac? Learn how to find the serial number, read Apple Check Coverage correctly, avoid “not activated” mistakes, and when to bulk-check with Excel.
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How to check the Mac mini serial, model, and warranty
Buying or inbound-checking a Mac mini? Learn how to find the serial number, read Apple Check Coverage correctly, avoid “not activated” mistakes, and when to bulk-check with Excel.
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How to check the Mac Studio serial, model, and warranty
Buying or inbound-checking a Mac Studio? Learn how to find the serial number, read Apple Check Coverage correctly, avoid “not activated” mistakes, and when to bulk-check with Excel.
Read article →Other Manufacturers
7 articles
How to Check a Samsung Warranty by IMEI or Serial Number
Use Samsung Vietnam's official warranty channel, interpret the electronic activation date, and know what to do when the result does not match the invoice.
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How to Check an OPPO Warranty by IMEI or SN
Use OPPO Support’s warranty checker, then assess the phone’s condition separately before buying or accepting it.
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How to Check a Xiaomi Warranty by IMEI or Serial Number
Product authentication and local warranty eligibility are different questions, and the answer depends on the device's distribution market.
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How to Check Sony Warranty by IMEI/Serial
Sony covers many product lines; pick the correct Xperia, TV, camera, or audio form instead of using one lookup for everything.
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How to Check vivo Warranty by IMEI
Look up the IMEI on vivo Support and understand why devices from other regions may not show complete results.
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How to Check realme Warranty by IMEI/SN
Use the official Phone Check, compare the distribution region, and do not confuse warranty status with overall device condition.
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How to Look Up Huawei, Google Pixel, Nokia/HMD, and ASUS Warranty
Each brand uses different portals and regional support levels; this guide helps you pick the right contact point instead of one generic website.
Read article →Bulk Checks for Businesses
16 articles
How to Bulk-Check Apple IMEIs and Serials with Excel
Upload Excel → run a batch → download one result file for stores, wholesalers, buyback teams, and refurbishers — without typing each code into Check Coverage.
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Check Multiple Apple Serial Numbers with Excel: A Stock-Intake Workflow
A consistent input file reduces typing errors and gives retailers one auditable result set for an entire shipment of iPhones, iPads, MacBooks, Apple Watches, or AirPods.
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Free vs Paid IMEI Checks: Which Should You Choose?
Free checks suit a single device; paid services make sense only when they save work or return the exact data you need.
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Comparing Popular IMEI and Serial Check Websites
Compare by data type and workflow—not price alone—because each service solves a different need.
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Batch IMEI Checker for Excel
For stores and warehouses that already keep IMEI/serial lists in Excel — no more one-by-one lookups.
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Check 10,000 Apple Serials in Excel
A practical plan for large lots: split files, respect daily limits and merge results.
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Google Sheets IMEI Checker
Teams living in Google Sheets can still bulk-check — a CSV export is enough.
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CSV IMEI Checker
CSV is the common interchange format between warehouse software, Sheets and Excel.
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Bulk Warranty Checker for Apple Devices
One serial file → expiry dates and warranty days remaining for the whole lot.
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IMEI Checker API vs Excel
Excel is fastest to start; an API wins when you must embed into an ERP — choose by system maturity.
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IMEI Checker for Refurbish Businesses
For refurbish workshops, grading warehouses, refurbished resellers: upload Excel, filter activated / expired-warranty units before intake or pricing.
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IMEI Checker for Phone Wholesalers
For wholesalers, distributors, transit warehouses: upload Excel, filter activated / expired-warranty units before intake or pricing.
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IMEI Checker for Repair Shops
For repair shops, independent service centers, technicians: upload Excel, filter activated / expired-warranty units before intake or pricing.
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IMEI Checker for Buyback Companies
For buyback desks, trade-in counters, used-device marketplaces: upload Excel, filter activated / expired-warranty units before intake or pricing.
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How to Keep Every IMEI Digit Intact in Excel
An IMEI is an identifier, not a value for arithmetic. Format the column as Text before import to preserve it.
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Excel Template for IMEI, Serial and Warranty Management
One row per device, with an internal asset ID and the fields needed for intake, warranty checks, grading and assignment.
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