How to Sim Unlock Samsung Galaxy

How to sim network unlock Samsung galaxy for at&t , t-mobile, Verizon, metropcs, orange or o2 sim.             

1^st method to carrier unlock Samsung galaxy mobile:

                     This method can unlock any Samsung galaxy mobile. In this method we will find unlock code hidden inside stl5 /EFS folder.

                       You need computer, Samsung galaxy mobile, rooting software, super user apps, usb driver for galaxy mobile, android software developer kit –SDK, or ADB.

1. Connect Samsung galaxy to computer and install USB driver for or install Samsung kies. Make sure you install driver as per galaxy model.

2. Install rooting software on computer or install rooting app on mobile. In other word root your mobile.

3. Install super user app on your mobile.

4. Install android software developer kit or install ADB – android debug bridge on computer.

5. Enable USB debugging on Samsung galaxy. Connect galaxy mobile to computer.

6. Open command prompt and go to adb directory. Start ADB shell.

7. We are going to copy EFS partition which is stl5 and find the file named perso. Samsung galaxy unlock code reside in this file. We can open file in any hexa editor or browser which can open and view FAT or VFAT formatted files.

             Mount EFS partition by typing below command. You can use other command and parameter if you know Unix very well.                     

                  Mount –o nosuide.ronodev –t vfat /dev/ block/stL5. (EFS partition name in some galaxy mobile is stl4 but in most of the mobile it is stl5).

    Open parso file using this command cat /efs/mits/perso.txt. Sim Unlock Code for Samsung galaxy is inside perso file. It is of 8 digits. In perso file there are many 00 or ff or hh character and symbols. So check carefully and when you found unlock code note down on paper. Now you must unmount EFS partition otherwise your Samsung galaxy considered as bricked.

              You don’t want to root mobile. Then there are many free apps software which can backup mobile partition. You can download those apps. Those apps need supper user access. Grant super user access to those apps and backup EFS partition. Search perso.txt file for Galaxy Unlock Code inside it.

                  Start galaxy mobile with other sim card. You will see sim error message like network locked simcard inserted or invalid network sim, enter correct sim or enter network lock control key. Ask to enter network unlock code. Enter it and mobile is network unlocked. 

2^nd method to Network Unlock Galaxy mobile:

 

                   Some suggest that twicking with EFS partition may damage your mobile. Some time your IMEI number become 00 or corrupted. Here I will go for other file where unlock code is hidden. Path is /dev/block/bml5.

                 We already rooted galaxy mobile and we have installed super user. Just go to command prompt and use below command.

At adb shell $

Su

Cat /dev/block/bml5 >  /sdcard/bml5.bml. 

                                       This will copy file to sd card now transfer to computer. Open this file in hexa editor or browser which can view FAT or VFAT file. Find 8 digit IMEI Unlock Code for Samsung Galaxy.  You will find unlock code 2 to 3 places on this file.  Process for t-mobile or at&t mobile is same for galaxy mobile. Once you get unlock code start galaxy mobile with other sim like Fido sim, roger sim, MetroPCS or bell telus sim. Enter 8 digit unlock code and mobile is unlocked.

3rd  method for Samsung Galaxy Sim Unlock :

 

  Latest galaxy mobiles are locked at boot level. For that you need to trick with boot partition to unlock galaxy. I have explained this method in detail at t-mobile unlock for Samsung galaxy, LG, Nokia or Motorola.  Here I will brief you about that method.

           For this 3 method, you need to dump or copy boot partition or bootloader. Go to ADB shell and copy boot partition. Open that partition. There is software code inside this partition. Which force to enter unlock code when you insert other sim. If you modify that code or modify this partition and re flash to galaxy mobile. Then mobile will be unlocked for all CDMA and GSM sim card.

            Some of the galaxy mobile are REGION LOCKED and to unlock those galaxy mobile you need defreeze code and nck code.

Sim Network Unlock Samsung Galaxy S9 Plus

 Procedure for Network Unlock Samsung Galaxy S9 all models.

Method 1: Disable NETWORK LOCK inside phone control using service mode. 

 

To access service mode use this command *#0011#     or  *#32489#.  But these commands are mostly disabled. So first unhide hidden menu and then enter into service mode. Under phone control find network lock and disable it.

Below are some code for customizing network lock on Samsung galaxy s9 plus.

*7465625*638*#

*7465625*77*# by this code you can also insert other GSM carrier details.

Method 2 : generate network unlock code from IMEI number of Samsung galaxy s9 mobile.

 

There are many apps and site available for this. It generate four kind of codes 1)NCK 2)SPCK 3)SCK 4)defreeze or unfreeze code. Normally NCK is sim network unlock pin. Once you get it insert any sim to Samsung and it ask for sim network unlock pin. Enter nck code and Samsung galaxy s9 mobile is unlocked.

Many time Samsung galaxy mobile has location or region lock. For example if you have purchase mobile from USA. You cannot use it at UK or Canada. Because mobile frequency band are restricted on those mobile. To IMEI unlock this, you need to use defreeze or unfreeze code of Samsung galaxy s9.

T-mobile Samsung galaxy s9 unlock :

 

You have prepaid T-mobile Samsung galaxy s9 or s9 plus. Then spend around 50 dollar and after using 40 to 50 days. Download t-mobile device unlock app and choose unlock permanently option.  Normally prepaid mobile are unlocked after this. Even you can temporary unlock T-mobile using this app.  Here is how to unlock Samsung galaxy s8 plus for t-mobile, at&t, cricket, MetroPCS, Fido.

Cricket, sprint, At&t MetroPCS Samsung galaxy s9 variant carrier unlock:

Mobile is on installment basis, then you must pay all due amount in full before making unlock request. There is no complaint against IMEI number or not blacklisted. It must activate for certain period of days. After that make unlock code request and you will get sim network unlock pin. It is mostly 6 digit code for Samsung galaxy s9 mobile. While other Samsung galaxy mobile it is of 8 to 16 digits. Now insert other sim and start mobile. It asks to enter sim network unlock code and mobile is unlocked for all sim.

Method 3 : Other method to unlock Samsung galaxy s9 mobile is installing custom ROM on mobile or finding IMEI unlock code which is hidden inside Samsung galaxys9.

Sim unlock samsung galaxy s8 variants

Samsung galaxy s8 and s8 plus variant mobile sim network unlocking methods.

Many mobile GSM company and mobile company sell mobile with sim locked condition. So you cannot use other sim on that mobile. T-mobile, at&t, roger, bell, telus, cricket all sell Samsung galaxy s8, Samsung galaxy s8 plus and galaxy note 8 with sim locked condition. Also sell many lg , Nokia Motorola , iPhone and htc mobile with network lock. You need network unlock code for that.

  To unlock Samsung galaxy mobile, you need sim network unlock pin. You can unlock Samsung mobile by following method.

Samsung Galaxy S8 Unlock Method 1: 

 

Turn off network lock on Samsung galaxy s8 plus to unlock it. For this you need to enter in service mode. Service mode command are *#0011#     or  *#32489#. But these code are hidden so you must unhide hidden menu on Samsung galaxy. then try to enter in service mode. Inside service menu - find phone control and under that menu select network lock menu and deactivate it. This will sim unlock mobile. It is not so easy as it appear.

Samsung Galaxy S8 Plus Variant Sim Unlock Method 2 : 

 

You can install custom ROM on mobile. But this will unbrick mobile and may void warranty.

Download stable custom ROM for Samsung galaxy s8 model. Below is the different Samsung galaxy s8 plus and s8 model number. galaxy s8 model are SM-G950 and SM-G955. And Samsung galaxy s8 plus model are

Samsung galaxy s8 + Canada G955W ,

At&t s8 +; G955A,

Sprint Samsung galaxy s8 plus  G955P ,

T-mobile galaxy s8 plus G955T ,

Verizon samsung galaxy s8 +  G955V.

Root your mobile also install flashing software and then install custom ROM. Before doing this note down IMEI number of Samsung galaxy s8 / s8 +. Also note down original stock ROM version and original baseband / radio modem firmware version.

Samsung galaxy Unlcok Method 3 : 

 

Easiest method is to get network unlock code from IMEI number of lg, iPhone, Nokia and Motorola mobile. There are many site provide sim network unlock pin for Samsung galaxy s8 and s8 plus mobile.  You need to provide just IMEI number of mobile and carrier with which Samsung galaxy s8 mobile is locked. They will email you unlock codes.  There are different kind of unlock code NCK code, SPCK code , defreeze unfreeze code. Normally NCK code is your network unlock code. If your mobile is hard locked due to wrong unlock code entered many times. Then first enter unfreeze code and then NCK code to unlock Samsung galaxy.

             Once you get unlock code start your mobile with different sim. If mobile is locked with at&t. Then start mobile with t-mobile, cricket , bell Telus or Fido sim. Now you will get dialog box enter sim network unlock pin for Samsung galaxy. Enter NCK code and mobile is unlocked. Samsung sim network unlock pin is about 8 to 16 digit.

       For T-mobile Samsung galaxy s8 plus unlock, download tmobile device unlock app. Make sure you have fully paid all the due amount about T-mobile. And keep mobile connected to internet via WiFi. This will unlock mobile. If you have T-mobile Samsung galaxy s8 variant. It is pre paid then you must use more than 30days. And you have to spend around 40+ dollar. Then you can unlock t-mobile Samsung galaxy s8 plus for free with this app.

Samsung Unlock Method 4 : 

 

when mobile is locked, unlock code for Samsung galaxy is hidden inside mobile. So root your mobile also install USB driver for mobile on computer. Connect mobile via USB cable and search unlock code for Samsung.

     If you have cricket ,sprint or at&t Samsung s8 variant. Then you must paid all due amount. It must activate more than 50 days depending upon the GSM company. No complaint against IMEI number and not blacklisted. Then you can ask for unlock code to customer care.