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Many mobile carriers which provide you with a phone and along with it, its own services (network & device at cheaper price per month) usually lock your phone so that you cannot use it with another mobile network carrier. May be you never intend to move from this network to another but still love to use your phone abroad on some other network (when you are on a trip away from your country).
Consequently, the developers have worked upon and released many types of softwares which unlock this kind of lock! If your intentions are clear, then you may fell free to jailbreak and unlock your phone. For Samsung S3, ‘Spocky12’ – a developer at XDA – has made available an application which will do the same that we were discussing from a long time. He called it ‘GalaxSim Unlock’ application and we need to download & install this software then do some clicks here & there on it – and we will be done then – if we really want to enjoy the unlocked sim.
Read further the ‘Important!’ section and when you make your phone eligible by following the instructions listed (within the section), you may proceed to install the ‘GalaxSim Unlock’ software and then unlock your phone.
Important!
Procedure to install the ‘GalaxSim Unlock’ software and also the sim-unlocking process onto your Samsung Galaxy S3 I9300:
Transfer the ‘GalaxSim Unlock’ file (.apk file) into the root folder of your SD card.
Click-open the file manager app that you had installed earlier.
Search & find the GalaxSim file and click on it. This will install the software needed for unlocking your phone.
After you are done with the install, you have to launch the GalaxSim application.
It will ask for the root access upon its launch, and you should provide the same by clicking on the ‘Grant/Allow’ soft-button.
An additional step here is to back-up your EFS file. Click on ‘Backup EFS’. If you want to find the backed up file of your EFS, then can locate it in the ‘GalaxSimUnlock’ folder present on your phone’s internal memory. You can further your backup by saving a copy of this backed-up file to a safer place.
Now you should unlock your Galaxy S3 by pressing the ‘Unlock’ button. J
Reboot your phone, and you are done with the process.
After the reboot you will have the sim-unlocked (kind of brand new) Samsung Galaxy S3 in your hands!
Cheers!
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My name is Phillip, and I am an Android fanatic. I spend most of my time on the Internet, and my hobbies include customization, coding and app and web development. You can find Phillip on ,
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Alizer on
Thanks a million brother. It solved my headake which I carry on for a long week. Brilliant. Regards.
daniel on
i follow the steps and worked perfect on my galaxy tab 7 plus.thank you very very much.you published this and is very important for all of us.once again thank you and all my respect
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