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Monday, November 26, 2012

Solved: Network Unlock Samsung Galaxy S2 + JB 4.1.2 firmware

I  updated to JB 4.1.2 firmware ( I9100XXLSJ ) yesterday and my phone kept complaining about Network Lock. Which i have fixed in few easy steps.

We assume that your phone is rooted ( I may add a tutorial on this later)

1. Download and Install this given apk  ( GalaxSimUnlock.apk )
2. Once you open the apk it will show you the current status of your phone.
3. Click the white bar at bottom.
4. If asked grant the root previlages.
5. It will inform you about the network unlock. ( Now simple restart the phone) .

- Mihir Patel

=====================================================

This is the easiest method that i found that works. Let us know if it does not work for you. and post your solution if you have anything better !

89 comments:

davidbond said...
This comment has been removed by a blog administrator.
Vipun Kamboj said...

thanks work like a charm i used galaxy s unlock but this work with jelly bean

Anonymous said...

works in a sec. great job man
thanks....

the cool dude said...

IT WORKS!!!!! BIG THANX MAN!

Anonymous said...

Thank's...works in a second.

Anonymous said...

thank you so much brother.. works . i did not have busy box installed and was prompted for it , and when i install busybox and press the bar in the bottom ...BOOM!!! . works perfect.. thank you so much

Anonymous said...

IT works without a problem! 10x a lot man!

sasanga roshana said...

for this phone should be rooted...pls advise how to root ///pls help im in big trouble

Viraj Rana said...

Works like a charm.
Unlocked my phone within seconds. Just needed a restart.

Lalit Rathee said...

Great job with the apk. When downloaded the same app through market asks for paid pro version before unlocking.

Anonymous said...

Great! Thanks

Anonymous said...

Awesome man.Fu**ed my mind up for 4 hours on the internet to search for this particular software.Thanx a ton.

Anonymous said...

worked for my galaxy s2 running 4.1.2 THANKS !!! THANKS !!! THANKS !!!

Anonymous said...

Wow.

Hours of fruitless searching resolved in about a minute.
Upgraded my Galaxy S2 to Jellybean 4.2.2 (Cyanogen Mod 10.1) and lost my unlock.

Followed the instructions on here and am still shocked at how simple it was.

Alexandru Bumbescu said...

duude you are the shit!!!!!!! man all this duudes on the playstore are puting apps that dont work and you try them like hell and the dont work!!!!!!and you made it so simple!
thank you man ;) i appreciate your help good bless you ;9

Alexandru Bumbescu said...

duude you are the shit!!!!!!! man all this duudes on the playstore are puting apps that dont work and you try them like hell and the dont work!!!!!!and you made it so simple!
thank you man ;) i appreciate your help good bless you ;9

Vivek agrawal said...

dude...you are awesome...mind blowing...it worked like charm!
god bless you!! :)

Javier Luna said...

This method definitely works! I really appreciate the information you've given to all of us. THANKS :D

Anonymous said...

OMG. thank you so much!! no other sim unlock worked!! i was going crazy!!

Anonymous said...

how you install this .apk in your phone??? pls haelp me

Mihir said...

use appIntaller from georgy house. ( From Google Play )

once you open the app. It will search for all the apk on your sd card. ( Allowing you to install/ uninstall/ remove apps)

- Mihir

Stéphanie Marwa said...

You saved a life man with this post.. really.. I bought a second handed sim locked s2.. mom was about to kill me.. now it works smouthly.. THX MAN!!

Saurabh Punhani said...

Hi Mihir i got a problem here that I think you can help solve......got a samsung s2 att skyrocket, updated yesterday to 4.0.4 firmware, but forgot I'll need the unlock code now! so tried installing your apk file, but i guess my phone's not rooted as it says "undefined" for all the parameters such as SIM lock, phone lock etc.......so do i just need to root it somehow, then the apk file should help me unlock? Please help..........

Mihir said...

you have to root the phone. (as the application need to have root previlageis to do its job, overwrite some stuff in OS).

In short once you root the device the application should work.

Anonymous said...

THANK YOUUUUUU

Anonymous said...

Hi,
I have upgraded my S2 to 4.1.2 and its asking me to enter network sim unlock code.I have went to samsung service center even they couldn't unlock it,instead they downgraded my phone to 2.3.3 and its still asking me to enter the network unlock code.
Could you please help me what should i do now and will this .apk file works for me or not and please let me know how to do rooting as well.

cheers

Nadeem Badgujar said...

really really thankx man ...you solved my problem...now its working .....

Nikola said...

Thank you sir! THANK YOU! Everything worked on my S2 with 4.1.2 original firmware!

You are a true man!

Anonymous said...

It worked ! thanxs

Tony Nkwo said...

It worked... thank u so much

Anonymous said...

Thanks!

ahmad medapri said...

Dude, it works on my sc-02c. I'am already put it on craiglaist because I didnt get any solution before. Even docomoshop can not help me. Thank you very much. You save my week...

Chris said...

I have been trying for days to unlock my s2 using the usual google play apps and even the guy in the market couldn't do it. Tried this out of desperation. Worked straight away after a restart. Thanks man. Donation if I can!

Anonymous said...

Merci!!!!!!!!!!!!!!!!!!! it's greatttttttttttttttttttt

Muhammad Waqar said...

Thats Nice Bro... It works Great thanks

Anonymous said...

You are great!!! Thanks from austria!!

Anonymous said...

Great app!
Many thanks!!!

Anonymous said...

Big thanks, worked like a charm for me. Traded a BB Bold 9900 for an S2 yesterday and was pulling my hair out trying to find a quick way to unlock my new trade. You, have made my week!

Muhammad Ahmed Mirza said...

Tgankd a lot buddy. It surely worked and I am using my s2 now

Tomek - sekretarz said...

Hi mate!
I just tried this software on Galaxy S 2 - locked to T-Mobile UK with stock firmware 4.0.4 - software reported that my phone is not supported so I've tried on my risk :) AND ITS WORKS!!!
SO far after 4 days of Google search and testing various methods including dodgy you tube videos where people only stealing your time and money :0 GOOD JOB!!! will link your blog on my facebook and forums I use :)

Mihir said...

good to see that the solution is still working.

Anonymous said...

When I open up the app all I get is undefined on all and also "unable to read nv data" is this still able to unlock the phone?

Mihir said...

give it a go. (if your deviced is rooted)

FlashFaint said...

Very good article.
I too like to share my knowledge about unlocking Samsung Galaxy phones.
Samsung Galaxy S2 can be unlocked safely ,easily and permanently using unlock code . We can get the unlock code from our service provider or from online sites like WickedUnlock.com . This method of using unlock codes to unlock the phone won't void its warranty. Whereas using software and applications to unlock will void the warranty and may damage the phone permanently if not used properly.

Anonymous said...

Just unlocked my SG2 in less than 2 minutes. Now beat that T-Mobile Uk (EE)!!! Thanks dude for the wonderful tool.

Anonymous said...

Wow!! It works!

I've tried loads of "so called" network unlockers and none work.

Only this one shines through.

Tried it on my Galaxy S2 using NeatROM JB 4.2.2

Anonymous said...

Guys, do you know how to get this oe similar program in US? We are not allowed to download SIM 2 unlock thanks to our government! But we can still root:))

Knowledge world said...

This site has some great information for beginners and is an excellent example of how to provide high quality, rich and engaging very large content as well. thanks for this good job.

Tomáš Františák said...

Thank you so much. I can't explain my feelings, but after 3 days seaching on internet I found this way and it's work!

Anonymous said...

THANK YOU MAN! Worked like a charm on SGS2 I9100 locked on T-Mobile Macedonia

Anonymous said...

After all my time using various methods to find the unlock code,this is the most painless method i have come across,these guys deserve an oscar!!!

Anonymous said...

Thanks!!!

it works fine now

awesome

Benali Nacer said...

thank u very much brother before i was really worry i just root it and i unstall that appnow it work great on galaxy S2 with 4.1.2 original firmware if u ar my neighbour i give a good gift infortunalitty u faraway

parikshith said...

boss u r god. thanks so much mihir. thanks once again

Sweet Fairy said...

Great idea. It is working. Thanks a lot for sharing. samsung galaxy

Waqas Saeed said...

OH man I cant just explain how I am feeling after unlock luv u man u r hero of my phne keep the good stuff up Bro

Roger Nilsson said...

Cant be any simpler!! Awsome tool. Unlocked my S2 in seconds!

a1 said...

Yaaaaaaaaaaaaaaaaaaaaaaaay (Y) (Y)
amaaaaaaaaaaaaaaaaaaaaaaaazinggggg
thaaaaaaaaaaaaaaaanks alot <3 :D

Anonymous said...

Thanks a million.

Anonymous said...

Thanks man. Worked on my galaxy s2 locked to 3 ireland. Great work.

Kashif Choudhury said...

Thank you. I have finally gotten a PERMANENT solution to my Galaxy SII i777's AT&T unlock problem. I cannot express my gratitude in words. Thank you.

Anonymous said...

Wow, I've tried so many things that didnt worked, but this did the trick! Everyone who has trouble should try!

Anonymous said...

Thank you very very very much. I was struggling for 3 days. Finally it works...

my phone spec.
Model: GT-I9100
ANdroid version: 4.1.2
Baseband version: I9100XXMS2
Build Number:JZ054K.I9100XWLSW

Damian Madden said...

Thanks so much!! Works on my Galaxy S2 i777 AT&T!!

zenebe debelu said...

It work but first I install busy box thanks a lot God bless u from Ethiopia

Anonymous said...

Thanks

Anonymous said...

Thank you very very very much. This is the only app that sort out "Sim network unlock PIN" on my GS2 after upgrade to JB4.1.2. I was struggling for days. Finally it works...

Manusha said...

oh man you are awesome very very thanks man great actully no words to say how to thank you...

Iasmin said...

Goof job, Work with cm 10.3

rajendra prasad said...

my dear friend...you saved my life...i thank you infinity times..god bless you man

onchannel said...

this is the only app that worked. worked like a charm.

Jimmy Johns said...

Excellent guide on unlocking a Samsung Galaxy in the similar way, I unlocked my Samsung Galaxy from Vodafone using unlock code. I got the unlock code for my mobile from Unlock Samsung Galaxy affordable cost with easy unlocking guide.

Tee said...

Thank you so much. I explored every forum to get it done but failed untill I found this. Happy =)

asad hayat said...

Error 'unable to read nv data and when i click white bar it takes me to donation page.Please help.

Back2reveng3 said...

I've just tested on a rooted PORTUGUESE Galaxy S2 i9100G with the latest CyanogenMod 11-20140706-NIGHTLY-i9100 with the Mini Gaps and Superuser and it WORKED PERFECTLY WELL!!!

maranthaen unai said...

Good news

Cassidy Phd said...

yeah buddy!!! fuck yeah!!! it worked in 2 s3econds, after days of fighting with this son of a bitch phone.


Network Unlocked on Samsung GT- i9100 running X-TremE JB ROM V9

THANK YOU MY FRIEND

Fawwad Ahmed said...

i tried with software but not succeed so used : www.attlumiaunlockcode.com .. now phone is unlocked. hope it help. Thanks

Filipe Baltazar said...

i want to unlock my S2(international) from vodafone so i can use another carrier(contract is over).
i want to know if when i apply the unlock should i have my vodafone sim in the phone or the next carrier sim or should i remove any sim while the unlock is being done?

Anonymous said...

Thank you very very very much!!! It works...

my phone spec.
Model: GT-I9100LKAPAN (info from this app)
Android version: 4.1.2
Kernel: 3.0.31-1156082
Baseband version: I9100XXMS2
Build Number:JZO54K.I9100XWLSS

Anonymous said...

I have to write it. You are amazing! Thank you! Finally, I can use my phone properly! I am religionless, so I will say: everyone bless you!

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Rickey Robin said...

yes actually now a days smarts phones has been very common among the people.and this problem of unlock is too but there are a lots of technologies has appeared to get rid of this problem thanks for sharing this.

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nivla Kent said...

Thanks soooo muuuchh!!!...after hours of searching it came to my rescue. :)

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