What Is Imei On Android Device by King Smartphones
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What Is Imei On Android Device

Posted by ~ Erch ~ on Friday, March 29, 2013 | 22:26

Each communication device generally has a serial number, also on mobile devices, the phone number is usually known as IMEI, as well as on Android-based devices, bb, iphone, winphone, Symbian, or any other. So Let me share what is IMEI on android devices.
Often times people look at the IMEI and only assume that it just a series of numbers, but behind that number a lot of people do not realize that the IMEI is sometimes also necessary. Therefore in this article maxiandroid, let us know share with IMEI in android. Android is good


What is IMEI

IMEI stands for International Mobile Equipment Identity. IMEI is a unique code that is owned by each device. Usually amounted to 15 digits or more. Each device has not the same IMEI number. To view IMEI number of your device, you can type * # 06 # key. Or you can look at the back of the device or the usual sticker on the box attached to the device. IMEI number can not be changed actually. Because it is inherited from the manufacturer / vendor makes. Therefore, the IMEI itself has a special meaning to indicate the manufacturer, type hp and others.
what is imei


Recognize IMEI

Many countries have recognized the use of the IMEI in reducing the effect of mobile phone theft. IMEI (14 decimal digits plus a check digit) or IMEISV (16 digits) includes information on the origin, model, and serial number of the device. The structure of the IMEI / SV specified in 3GPP TS 23.003 . The model and origin comprise the beginning of section 8 digit IMEI / SV, known as the Type Allocation Code (TAC). The remainder of the IMEI is manufacturer specified, the Luhn check digit at the end. For IMEI format prior to 2003, the GSMA guideline is to have this Check Digit always transmitted to the network as zero. These guidelines seem to have disappeared for the format valid from 2003 onwards.

In 2004, the format of the IMEI is AA-BBBBBB-cccccc-D, though not always be displayed this way. The IMEISV drops the Luhn check digit in favor of one or two additional digits for the Software Version Number (SVN), making the format to AA-BBBBBB-cccccc-EE
imei format

Before 2002, the TAC was six digits followed by a two-digit code ending (FAC), which is a specific code from the manufacturer showing the location of the device construction. Since January 1, 2003 up to it, 1 April 2004, the FAC for all phones was 00. After April 1, 2004, the final code is no longer there and type in the code allocations increased to eight digits.

Check digit calculation

The last number of the IMEI is a check digit calculated using the Luhn algorithm.

According to the IMEI Allocation and approval guidelines
Examination digit calculated according to Luhn formula. Examination digit is a function of all other IMEI number. The version number (SVN) of the phone is not included in the calculation.

The purpose of the digits is to help guard against the possibility of incorrect entries to the CEIR and EIR equipment. The presentation of the checks digits in both electronic and printed form on the label and packaging is very important.

Check digit is validated in three steps:
Starting from the right, double-digit every two digits (eg, 7 → 14).
Sum the digits (eg, 14 → 1 + 4).
Check if the number is divisible by 10.

Instead, one can calculate the IMEI by choosing the check digit that will provide a number divisible by 10. For example IMEI 49015420323751?
validate imei


To make the number divisible by 10, it will get the results from? = 8, so the IMEI is 490154203237518.
For more information you can read on the site wikipedia .


IMEI validation check

Do we need to check validation IMEI? The answer is of course necessary. Check IMEI is needed even more so when you want to buy either device or mobile phone based android based or other. To do check IMEI you can use the features of the site you can go to click the image below.



Due to the number of phones in the market, sometimes we find blackmarket phone, perhaps check your IMEI will avoid what you do not want, but you should know that the IMEI reading on different android devices based devices such as nokia symbian example, reading digit IMEI on 7 and 8 which leads to the manufacture of the device. To read what country your android phone manufactured, you can see from the information to get device info you can use a special code or the application is available in the store play.

Is IMEI can be replaced
Often the question arises whether the phone's IMEI can be replaced? Some of the technicians and senior forums or opinion that the IMEI can not be changed, the actual IMEI is the IMEI can be changed and also lost due to user error / recovery technicians can with genuine IMEI or fake IMEI, but you should know that changing the IMEI is illegal and breaking the law, besides that if you fail to change the IMEI will be bad for your device one example will result in no signal. Because replacement IMEI is not allowed, unless you have asked permission from the relevant vendor.


IMEI Function
In addition to recognizing the phone, is there another Imei function?
There, many functions of the IMEI is also used to identify a mobile phone, such as the series of numbers has some information that can not be translated in layman.

Besides IMEI is also needed when you do unlock your mobile phone or inject. IMEI is used to unlock regular converted in hex ​​form (I will not discuss further in this article).
imei list

Other functions of the most important is when you lose your phone, you should contact your network and let you use your IMEI number. They will be able to do the blocking so that HP can not be used at all even exchanged cards as a blocked number is a phone and not a cell phone call (Therefore, I hope you do not spread your IMEI to avoid people who are not responsible). But once you find your phone back, you can unblocking your phone (the phone you can use and get a signal after unblocking IMEI or change your IMEI, but you need to know to change IMEI if incorrect would cause damage especially to the baseband network and not all technicians could IMEI change besides changing the IMEI is illegal).
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