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 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.

How to use Android Picture-in-Picture mode

How to use Android Picture-in-Picture mode

Android Picture-in-Picture mode will help you shrink the video and watch it in picture-in-picture mode, watching the video in another interface so you can do other things.

Tips for using AI chatbot without internet connection

Tips for using AI chatbot without internet connection

The common point of most of these AI chatbot tools is that they need an Internet connection to use. But with the article below, you will learn more tips for using AI chatbots without the Internet on your phone.

6 Pixel-Exclusive Features You Can Transfer to Any Android Phone

6 Pixel-Exclusive Features You Can Transfer to Any Android Phone

Depending on your needs, you'll likely get a set of Pixel-exclusive features running on your existing Android device.

10 Open Source Android Apps You Cant Live Without

10 Open Source Android Apps You Cant Live Without

After years of using Android phones, many people have become familiar with a number of open source Android apps. These apps are better than their closed source counterparts.

How to turn on NFC on iPhone easily and quickly

How to turn on NFC on iPhone easily and quickly

Near Field Communication is a wireless technology that allows devices to exchange data when they are in close proximity to each other, typically within a few centimeters.

Adaptive Power and Low Power: Which iPhone battery saving mode should you use?

Adaptive Power and Low Power: Which iPhone battery saving mode should you use?

Apple introduced Adaptive Power, which works alongside Low Power Mode. Both extend iPhone battery life, but they work in very different ways.

Youre Missing Out on Your Phone Cameras Potential: This Free App Will Change That!

Youre Missing Out on Your Phone Cameras Potential: This Free App Will Change That!

Samsung's camera app works well out of the box, but Camera Assistant adds new features that you wish were built in from the start.

Top 21 ADB Commands Android Users Should Know

Top 21 ADB Commands Android Users Should Know

Android Debug Bridge (ADB) is a powerful and versatile tool that allows you to do many things like find logs, install and uninstall apps, transfer files, root and flash custom ROMs, create device backups.

Instructions for making quick calls on iPhone are very simple

Instructions for making quick calls on iPhone are very simple

If you frequently need to contact someone, you can set up speed calling on your iPhone, with a few simple steps.

Instructions for rotating iPhone screen on all models

Instructions for rotating iPhone screen on all models

Rotating the screen horizontally on iPhone helps you watch movies or Netflix, view PDFs, play games,... more conveniently and have a better experience.

How to search images with Google Images on your phone

How to search images with Google Images on your phone

Reverse image search on iPhone is very simple when you can use the browser on the device, or use some 3rd party applications for more search options.

Tricks to help you use Chrome on Android effectively that you may not know

Tricks to help you use Chrome on Android effectively that you may not know

Chrome on Android is a great browser out of the box, but you can make it even better. These tips and features will help you browse the web faster.

7 Ways Smartphones Are Getting Worse

7 Ways Smartphones Are Getting Worse

When you compare smartphones from nearly two decades ago and today, you can't help but notice that they've gotten worse in a variety of ways.