LG IMEI info. LG IMEI and serial number support added. By checking the LG serial number you can define country and date of manufacture. By IMEI number, except country and date of manufacture, also defines the phone model, color, and country or organization is that is selling it.
A mobile equipment identifier (MEID) is a globally unique number identifying a physical piece of CDMA2000 mobile station equipment. The number format is defined by the 3GPP2 report S.R0048 but in practical terms, it can be seen as an IMEI but with hexadecimal digits.
Regional code | Manufacturer code | Serial number | CD | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
R | R | X | X | X | X | X | X | Z | Z | Z | Z | Z | Z | C |
An MEID is 56 bits long (14 hex digits). It consists of three fields, including an 8-bit regional code (RR), a 24-bit manufacturer code, and a 24-bit manufacturer-assigned serial number. The check digit (CD) is not considered part of the MEID.
The MEID was created to replace ESNs, whose virgin form was exhausted in November 2008.[1] As of TIA/EIA/IS-41 Revision D and TIA/EIA/IS-2000 Rev C, the ESN is still a required field in many messages—for compatibility, devices with an MEID can use a pseudo-ESN (pESN), which is a manufacturer code of 0x80 (formerly reserved) followed by the least significant 24 bits of the SHA-1 hash of the MEID.[2] MEIDs are used on CDMA mobile phones. GSM phones do not have ESN or MIN, only an International Mobile Station Equipment Identity (IMEI) number.
Obtaining the MEID on your phone[edit]
Commmonly, opening the phone's dialler and typing *#06# will display its MEID.[3]
869461022533073
Administration[edit]
The separation between international mobile equipment identifiers (IMEIs) used by GSM/UMTS and MEIDs is based on the number ranges. There are two administrators: the global decimal administrator (GDA) for IMEIs and the global hexadecimal administrator (GHA).
As of August 2006, the TIA acts as the GHA to assign MEID code prefixes (0xA0 and up), and the GSM Association acts as the global decimal administrator. http://www.babt.com/gsm-imei-number-allocation.asp723889TIA also allocates IMEI codes, specifically destined for dual-technology phones, out of the RR=99 range. Other administrators working under GSMA may also allocate any IMEI for use in dual-technology phones. Every IMEI can also be used as an MEID in CDMA2000 devices (as well as in single-mode devices designed with GSM or other 3GPP protocols) but MEID codes may also contain hexadecimal digits and this class of MEID codes cannot be used as an IMEI.
Display formats[edit]
There are two standard formats for MEIDs, and both can include an optional check-digit. This is defined by 3GPP2 standard X.S0008.
The hexadecimal form is specified to be 14 digits grouped together and applies whether all digits are in the decimal range or whether some are in the range 'A'-'F'. In the first case, all digits are in the range '0'-'9', the check-digit is calculated using the normal base 10 Luhn algorithm, but if at least one digit is in the range 'A'-'F' this check digit algorithm uses base 16 arithmetic. The check-digit is never transmitted or stored. It is intended to detect most (but not all) input errors, it is not intended to be a checksum or CRC to detect transmission errors. Consequently, it may be printed on phones or their packaging in case of manual entry of an MEID (e.g. because there is no bar code or the bar code is unreadable).
The decimal form is specified to be 18 digits grouped in a 5 5 4 4 pattern and is calculated by converting the manufacturer code portion (32 bits) to decimal and padding on the left with '0' digits to 10 digits and separately converting the serial number portion to decimal and padding on the left to 8 digits. A check-digit can be calculated from the 18 digit result using the standard base 10 Luhn algorithm and appended to the end. Note that to produce this form the MEID digits are treated as base 16 numbers even if all of them are in the range '0'-'9'.
pESN conflicts[edit]
Because the pESN is formed by a hash on the MEID there is the potential for hash collisions. These will cause an extremely rare condition known as a 'collision' on a pure ESN-only network as the ESN is used for the calculation of the Public Long Code Mask (PLCM) used for communication with the base-station. Two mobiles using the same pESN within the same base-station area (operating on the same frequency) can result in call setup and page failures.
The probability of a collision has been carefully examined.[4] Roughly, it is estimated that even on a heavily loaded network the frequency of this situation is closer to 1 out of 1 million calls than to 1 out of 100 000.
3GPP2 specification C.S0072 provides a solution to this problem by allowing the PLCM to be established by the base station. It is easy for the base station to ensure that all PLCM codes are unique when this is done. This specification also allows the PLCM to be based on the MEID or IMSI.
A different problem occurs when ESN codes are stored in a database (such as for OTASP). In this situation, the risk of at least two phones having the same pseudo-ESN can be calculated using the birthday paradox and works out to about a 50 per cent probability in a database with 4,800 pseudo-ESN entries. 3GPP2 specifications C.S0016 (Revision C or higher) and C.S0066 have been modified to allow the replacement MEID identifier to be transmitted, resolving this problem.
Another problem is that messages delivered on the forward paging channel using the pESN as an address could be delivered to multiple mobiles seemingly randomly. This problem can be avoided by using mobile identification number (MIN) or IMSI based addressing instead.
Code to convert[edit]
This short Python script will convert an MEID to a pESN.
The CDG also provides a javascript calculator with more conversion options.
This C# method will convert an MEID from HEX to DEC format (or return empty for an invalid MEID HEX value)
References[edit]
- ^'ESN Migration to MEID - Milestones & Timeline', The Telecommunications Industry Association (TIA), 30 November 2011
- ^'Devices: MEID & EUIMID'. CDG. Retrieved 29 May 2018.
- ^Bader, Daniel (21 March 2017). 'How to make sure your phone works on a prepaid alternative carrier'. iMore. Retrieved 24 October 2017.
- ^Pellegrino G, Quick F. White Paper on Pseudo-ESN Collisions. TIA. 26 May 2005.
External links[edit]
- PhoneScoop MEID article IMEI 355900068883398
Retrieved from 'https://en.wikipedia.org/w/index.php?title=Mobile_equipment_identifier&oldid=911902880'
Change IMEI, Device Id, Serial Key, UDID Of Android |
Changing the IMEI (International Mobile Equipment Identity) and device id of any android device is really not a good idea because there are many advantage or disadvantage but sometime it help us to take some extra benefit from our device. Where the IMEI is used to trace the location of a device or find the stolen device, on the other hand its used to make a device untraceable by changing its IMEI number, serial number, device id, Donkeyguard number, UDID.
You can also convert/change your Android IMEI to Blackberry (BB) IMEI by which you can use GLO BIS on it.
Related:-
1. Change Device ID and IMEI of BlueStacks.
2. Move apps to SD card and increase internal memory and RAM
1. Change Device ID and IMEI of BlueStacks.
2. Move apps to SD card and increase internal memory and RAM
Reason to change/convert your device’s IMEI number,
1. Make you device untraceable and unreachable,
2. Convert Android IMEI to Blackberry IMEI to use GLO BIS plan,
3. Fix invalid IMEI number problem on any devices,
4. Reset/Update/Repair your Device,
5. Getting an Unique device ID.
2. Convert Android IMEI to Blackberry IMEI to use GLO BIS plan,
3. Fix invalid IMEI number problem on any devices,
4. Reset/Update/Repair your Device,
5. Getting an Unique device ID.
Universal method or the full procedure to change/rewrite IMEI number of an Android device(includes tablet) with or without root your device or with or without the use of any IMEI Changer Software, IMEI Change Tool, Terminal Emulator programmatically .
Find IMEI number or Device Id of any android device (either phone or tablet):
If you are unable to find out the device id or IMEI number of your device then a simple below trick will help you,
- To find out IMEI number of your device, just dial *#06# .
- To find out device ID, Just dial *#*#8255#*#* and you will get your device id in GTalk Service Monitor. And an another way to find out device id is by going to Menu > Settings > About Phone > Status.
How to change IMEI number/
1. First Dial *#7465625# or *#*#3646633#*#* on your android device.
2. Now, click on Connectivity option or call pad,
3. Now look for CDS information and then click on it.
3. Now look for CDS information and then click on it.
4. Then, checkout for Radio information.
5. Now, if your android device is a dual sim device. Then you will get two option like IMEI_1 [SIM1] and IMEI_2 [SIM2]. Then select any one or of which you want to change IMEI number.
6. Now, change your IMEI number illustrated below,
AT +EGMR=1,7,”IMEI_1” and “AT +EGMR=1,10,”IMEI_2”
7. Now, just replace IMEI1 or IMEI2 with your any your desired number. and then click on SEND.
Note: You can also change IMEI number to any Blackberry [BB] IMEI number.
How to Change Device ID of your Android phone or tablet/ :
Device ID of an Android device can be changed with our without root,
Change Device ID with Root,
1. First Root Your Android device. click here
2. Now, Download and install Device ID changer,
3. Now, follow the wizard of this app.
4. And after changing the device id, restart/reboot your device and done.
Change Device ID without Root,
1. First, Backup your Android device. click here
2. Go to Settings. and then click on Backup & Reset.
3. Then, click on ‘Factory Data Reset‘.
4. And, then reset you phone.
5. When, reset done. Then you will get a new and unique device ID.
Now:- This will wipe your all data like messages, phone memory, contacts, apps. So, you must have to backup your device and after that you can restore it.
Resources:
Xposed Framework, Donkey Guard App, HideMyRoot App, RootCloak App, IMEI Changer App.
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