How to check the real IMEI, the simplest

What is IMEI? Checking the IMEI and distinguishing the real and fake IMEI is one of the quite effective ways for you to identify whether a product is genuine or a floating product, of unknown origin, even an illegal one. However, how to realize, what is a real IMEI, a fake IMEI is something that certainly not everyone knows.

How to check IMEI, check IMEI of Windows Phone

How to check the IMEI number on Android phones

How to check the IMEI number on an iPhone

The IMEI code is a "passport", which identifies a product or a mobile device. There are never two identical IMEIs for the same phone, so checking a real - fake IMEI is one of the most important and effective ways to identify that device.

Identify real or fake IMEI?

As we know, the structure of an IMEI consists of 4 parts ( IMEI = TAC + FAC + SNR + CD ). Inside:

  • TAC, FAC, SNR : The components are identified, calculated and used to identify the origin and information about that device.
  • CD : The last number of the 15 IMEI numbers - also the only way to rely on it and determine whether the existing IMEI range is real or fake, based on a fairly simple formula.

The formula is determined as follows:

  • Step 1 : You double the value of all the numbers in the IMEI range in odd positions (1st, 3rd, 5th ...) in order from right to left.
  • Step 2 : Add all these duplicated values ​​with the numbers in the remaining even position of the IMEI.
  • Step 3 : Take the total value divided by 10 (that is, the total value must be a number divided by 10), the result is the CD number.

ATTENTION:

  • If the result is divisible by 10, the CD number will be "0".
  • If the sum is not divisible by 10 , the CD number will be the difference between the divisor of 10 greater and closest to the result obtained.

For example:

After step 3, the total value found is:

  • 10, 20, 40, 70, ..: the CD number will be: 0.
  • 34, 56, 77, 87, ...: the number of CDs will be: 40 - 34 = 6, 60 - 56 = 4, 80 - 77 = 3, 90 - 87 = 3, ...

Specifically:

We have an IMEI range as follows: 49015420323751 X (490154-20-323751-X) -> Find X ?

IMEI 4 9 0 first 5 4 2 0 3 2 3 7 5 first X
Duplicate the value   18   2   8   0   4   14   2  
Add up the sum 4 1 + 8 0 2 5 8 2 0 3 4 3 1 + 4 5 2  

After step 3, our sum is:

4 + 1 + 8 + 0 + 2 + 5 + 8 + 2 + 0 + 3 + 4 + 3 + 1 + 4 + 5 + 2 = 42 -> not divisible by 10.

The divisor for 10, bigger and closest to 42, is 50 -> CD number = 50 - 42 = 8 .

So X = 8 and our complete IMEI code is 49015420323751 8 .

With this calculation formula, you can easily check whether the last number (CD number) of an IMEI code matches or not, is it standard with the remaining 14 numbers in the sequence?

  • If yes, that is the standard IMEI .
  • Otherwise, the IMEI code has been tampered with .

There are many devices, whether genuine, genuine, but faulty, used, or for some reason, their IMEI code has been changed to hide their true information. And here is how to help you find the "error" in that IMEI code.

I wish you successful implementation!

Sign up and earn $1000 a day ⋙

Leave a Comment

How to Check Purchase History on Apple App Store

How to Check Purchase History on Apple App Store

Through your purchase history on the App Store, you will know when you downloaded that app or game, and how much you paid for the paid app.

Instructions for receiving strange calls on iPhone

Instructions for receiving strange calls on iPhone

iPhone mutes iPhone from unknown callers and on iOS 26, iPhone automatically receives incoming calls from an unknown number and asks for the reason for the call. If you want to receive unknown calls on iPhone, follow the instructions below.

Quick tips to check WiFi security on iPhone when connecting

Quick tips to check WiFi security on iPhone when connecting

Apple makes it easy to find out if a WiFi network is safe before you connect. You don't need any software or other tools to help, just use the built-in settings on your iPhone.

How to Turn Off Headphone Volume Limit Warning on iPhone

How to Turn Off Headphone Volume Limit Warning on iPhone

iPhone has a speaker volume limit setting to control the sound. However, in some situations you need to increase the volume on your iPhone to be able to hear the content.

How to Uninstall Any Android App Using ADB (Including System Apps and Bloatware)

How to Uninstall Any Android App Using ADB (Including System Apps and Bloatware)

ADB is a powerful set of tools that give you more control over your Android device. Although ADB is intended for Android developers, you don't need any programming knowledge to uninstall Android apps with it.

This setting can extend your phones battery life better than you think.

This setting can extend your phones battery life better than you think.

You might think you know how to get the most out of your phone time, but chances are you don't know how big a difference this common setting makes.

Android System Key Verifier protects you from scammers and impersonators without you even knowing it.

Android System Key Verifier protects you from scammers and impersonators without you even knowing it.

The Android System Key Verifier app comes pre-installed as a system app on Android devices running version 8.0 or later.

Simple trick to control Apple TV with any Android phone

Simple trick to control Apple TV with any Android phone

Despite Apple's tight ecosystem, some people have turned their Android phones into reliable remote controls for their Apple TV.

What to do when mobile data is not working on Android device?

What to do when mobile data is not working on Android device?

There are many reasons why your Android phone cannot connect to mobile data, such as incorrect configuration errors causing the problem. Here is a guide to fix mobile data connection errors on Android.

How to run PlayStation 3 games on Android using aPS3e

How to run PlayStation 3 games on Android using aPS3e

For years, Android gamers have dreamed of running PS3 titles on their phones – now it's a reality. aPS3e, the first PS3 emulator for Android, is now available on the Google Play Store.

How to create and manage iMessage iPhone chat groups

How to create and manage iMessage iPhone chat groups

The iPhone iMessage group chat feature helps us text and chat more easily with many people, instead of sending individual messages.

8 best book reading software on iPhone

8 best book reading software on iPhone

For ebook lovers, having a library of books at your fingertips is a great thing. And if you store your ebooks on your phone, you can enjoy them anytime, anywhere. Check out the best ebook reading apps for iPhone below.

Picture in Picture on iPhone: How to Enable and Use Picture in Picture (PIP)

Picture in Picture on iPhone: How to Enable and Use Picture in Picture (PIP)

You can use Picture in Picture (PiP) to watch YouTube videos off-screen on iOS 14, but YouTube has locked this feature on the app so you cannot use PiP directly, you have to add a few more small steps that we will guide in detail below.

How to find downloaded files on iPhone/iPad

How to find downloaded files on iPhone/iPad

On iPhone/iPad, there is a Files application to manage all files on the device, including files that users download. The article below will guide readers on how to find downloaded files on iPhone/iPad.

7 tips to lock your smartphone to protect against phone theft

7 tips to lock your smartphone to protect against phone theft

If you really want to protect your phone, it's time you started locking your phone to prevent theft as well as protect it from hacks and scams.