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After installing jb 4.1.2, galaxy s2 locked to a network

Hi,
I bought a samsung galaxy s2 gt-i9100 UNLOCKED. Yesterday I installed the jelly bean 4.1.2 pre released firmware, after installation the phone switched on and promted me to enter the sim unlock code.
Any idea what can I do?
Thanks
Sent from my GT-I9100 using xda app-developers app

duncanf005 said:
Hi,
I bought a samsung galaxy s2 gt-i9100 UNLOCKED. Yesterday I installed the jelly bean 4.1.2 pre released firmware, after installation the phone switched on and promted me to enter the sim unlock code.
Any idea what can I do?
Thanks
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
My brother used cynogenmod10 for jelly bean experience...it looks cool look at this--->http://forum.xda-developers.com/showthread.php?t=1794758

mayurgawde31 said:
My brother used cynogenmod10 for jelly bean experience...it looks cool look at this--->http://forum.xda-developers.com/showthread.php?t=1794758
Click to expand...
Click to collapse
Well thats interesting...
Use chainfire or galaxsim unlock. They require root.

Yes, what you need to do is enter the SIM card unlock code that your carrier should have provided you with when you bought the SIM card - if they didn't give you one you'll need to ask them for it.
This is a security feature of the SIM card, and is not the same a network lock, which is coded into the phone's firmware and prevents it from being used on other networks.

I bought the galaxy s2 "unlocked".
But after experimenting with android i noticed that the phone was someday locked to a network and it was unlocked ( using an application ) and sold as "unlocked".
When i installed the new jellybean firmware, in which the installation contains the modem tar file, automatically arranged the nv data file to locked as it was the first time.
Now I have unlocked the phone using the galaxy s unlock application and moved to cm10 again
Thanks
Sent from my GT-I9100 using xda app-developers app

The older version of Galaxsim Unlock worked for me.
found here:
http://forum.xda-developers.com/attachment.php?attachmentid=1278774&d=1345769517
The carrier is often not a great help and they sometimes charge a fee for unlock code. Plus the waiting time is frustrating.
I contacted support where i bought my phone and they provided no help.
It seems my phone was originally locked to O2 telefonica even though I bought it "unlocked" online. I suspect a lot of the grey imports have this problem as they temporarily unlock it and then sell it as unlocked. If you need help unlocking it again they're not interested...
I will stick to only Google branded/play store from here on, then I wont need to flash (or wait until the phone is obsolete) before finally getting an update via Samsung.
my phone GT-I9100 on XXLPQ and CF-root

Jumping on the end of this thread.
I have a i9100m (bell - canada) and I have the CM10 nightly on it now. Since then I decided to unlock the phone -seeing as there were so many apps that I could do it with.
Not one has succeeded - Every app I have tried, except the one that you have to pay for from the store.. ANYONE know how much btw??
We still have the Bell account - upgraded the phone on the account to a Siii - and they still want $75 to unlock the Sii - thieves!!!
Looking for a suggestion - nothing on the phone is needed yet.. so .. should I downgrade it.. unlock with something in a different rom.. then back to Cm10? or is the galaxsim pretty cheap.. will work on 4.1.2 and I go with that?
James
boambee09745 said:
The older version of Galaxsim Unlock worked for me.
found here:
http://forum.xda-developers.com/attachment.php?attachmentid=1278774&d=1345769517
The carrier is often not a great help and they sometimes charge a fee for unlock code. Plus the waiting time is frustrating.
I contacted support where i bought my phone and they provided no help.
It seems my phone was originally locked to O2 telefonica even though I bought it "unlocked" online. I suspect a lot of the grey imports have this problem as they temporarily unlock it and then sell it as unlocked. If you need help unlocking it again they're not interested...
I will stick to only Google branded/play store from here on, then I wont need to flash (or wait until the phone is obsolete) before finally getting an update via Samsung.
my phone GT-I9100 on XXLPQ and CF-root
Click to expand...
Click to collapse

I used the galaxy_s unlock found in play store to unlock mine. Also installed the xxlpq ics firmware using odin before unlocking the phone.
Tried other apps such as galaxy unlock but lead to no success.
Sent from my GT-I9100 using xda app-developers app

boambee09745 said:
The older version of Galaxsim Unlock worked for me.
found here:
http://forum.xda-developers.com/attachment.php?attachmentid=1278774&d=1345769517
The carrier is often not a great help and they sometimes charge a fee for unlock code. Plus the waiting time is frustrating.
I contacted support where i bought my phone and they provided no help.
It seems my phone was originally locked to O2 telefonica even though I bought it "unlocked" online. I suspect a lot of the grey imports have this problem as they temporarily unlock it and then sell it as unlocked. If you need help unlocking it again they're not interested...
I will stick to only Google branded/play store from here on, then I wont need to flash (or wait until the phone is obsolete) before finally getting an update via Samsung.
my phone GT-I9100 on XXLPQ and CF-root
Click to expand...
Click to collapse
+1
Thank you very much!
It did the trick with just one touch on screen!!
Now my S2 is free again! kkkkkkkkk
:laugh:
lol

thanks
boambee09745 said:
The older version of Galaxsim Unlock worked for me.
found here:
http://forum.xda-developers.com/attachment.php?attachmentid=1278774&d=1345769517
Click to expand...
Click to collapse
I didnt want to go back to ics and the apps available at the moment didnt work for me. Thanx a lot man, u saved my day & avoided los of .... u know...

ohhhh finally i have done it
i wanna than you very much friends,
I have been working on patching the nv_data.bin file for 8 hours and Galaxim solved my problem (and saved my life) in 7seconds,
I have SG R GT-I9103 (the application says that my phone is not supported and it works )
peace

boambee09745 said:
The older version of Galaxsim Unlock worked for me.
found here:
http://forum.xda-developers.com/attachment.php?attachmentid=1278774&d=1345769517
Click to expand...
Click to collapse
Thanks, I can unlock my SII I9100 v 4.1.2 with this.

thanks
boambee09745 said:
The older version of Galaxsim Unlock worked for me.
found here:
http://forum.xda-developers.com/attachment.php?attachmentid=1278774&d=1345769517
Click to expand...
Click to collapse
thanks man! its work for me too!!!!

maritokun said:
thanks man! its work for me too!!!!
Click to expand...
Click to collapse
How to install it?

arnold8mile said:
How to install it?
Click to expand...
Click to collapse
me too???

arnold8mile said:
How to install it?
Click to expand...
Click to collapse
change the .zip to .apk from the download. move to ur external card and install from there.
Sent from my iPad mini using Tapatalk

Worked fine for 4.2.2
boambee09745 said:
The older version of Galaxsim Unlock worked for me.
found here:
http://forum.xda-developers.com/attachment.php?attachmentid=1278774&d=1345769517
The carrier is often not a great help and they sometimes charge a fee for unlock code. Plus the waiting time is frustrating.
I contacted support where i bought my phone and they provided no help.
It seems my phone was originally locked to O2 telefonica even though I bought it "unlocked" online. I suspect a lot of the grey imports have this problem as they temporarily unlock it and then sell it as unlocked. If you need help unlocking it again they're not interested...
I will stick to only Google branded/play store from here on, then I wont need to flash (or wait until the phone is obsolete) before finally getting an update via Samsung.
my phone GT-I9100 on XXLPQ and CF-root
Click to expand...
Click to collapse
Thnx a Lot, worked today fine with 4.2.2 cm-10.1-20130218 Experimental Build

Thx a Lot, worked today fine with 4.2.2 [01/03]Slim Bean - I9100 [build 1]

how do i install
leonardoafa said:
+1
Thank you very much!
It did the trick with just one touch on screen!!
Now my S2 is free again! kkkkkkkkk
:laugh:
lol
Click to expand...
Click to collapse
how do I install galaxsim unlock???

boambee09745 said:
The older version of Galaxsim Unlock worked for me.
found here:
DEAD_LINK See attached file
(......)
my phone GT-I9100 on XXLPQ and CF-root
Click to expand...
Click to collapse
WORKED!
Thanks!

[Q] PXXAMC1 network unlocking

hey guys,
my first post here although i've been reading xda for years when searching stuff. great forum, great guys
so here is my problem: i have an I9105PXXAMC1 bought months ago from t-mobile austria in wien, has stock firmware 4.1.2 and it seems that it is network locked. from my little knowledge i guess that it isn't that hard to reset this, is just something like a file somewhere in the android os system? i've seen apps on google play claiming that they can network unlock but i guess they need a rooted device.. but: this is just my feeling about things, maybe i'm wrong, so, please, i need your help:
what should i do in the simplest way to network unlock this phone? i've read threads listing firmwares, there are also rooting guides but i see many differences based on the exact baseband version of the phone and now i actually don't know what should i do.
do i need to root the phone? what's the right guide for this baseband version?
if i do it is there a way to get back to stock version in the unfortunate case that the phone has issues and i have to send it back to warranty?
please, someone give me a head start
thanks much!

Install prerooted firmware via odin.
http://forum.xda-developers.com/showthread.php?t=2334103
Sent from my GT-I9105P using xda app-developers app

thanks, but which firmware? there is no PXXAMC1 only PXXAMC2 the closest and there are also many variants like XEO, DBT, PHN x RDS/ROS
is AMC2 ok for AMC1? what's the difference between all those versions and which one should i choose?
thanks!

This one is the lastest
https://hotfile.com/dl/237505980/c4ee167/RDS_I9105PXXUBMG8_I9105POXABMG8_DBT.zip.html
Sent from my GT-I9105P using xda app-developers app

Nekator said:
This one is the lastest
https://hotfile.com/dl/237505980/c4ee167/RDS_I9105PXXUBMG8_I9105POXABMG8_DBT.zip.html
Sent from my GT-I9105P using xda app-developers app
Click to expand...
Click to collapse
ok, after flashing your t-mobile banding is gone, but it will be still simlocked...
---------- Post added at 11:32 AM ---------- Previous post was at 11:27 AM ----------
aktually there is no way to unlock it for free. the only way is to buy a code.
i tried everything...no way
you can also go to a seitengassenjugoshop, they will make it 4 u

0hm05 said:
ok, after flashing your t-mobile banding is gone, but it will be still simlocked...
Click to expand...
Click to collapse
thanks, if i understood things well, after flashing a prerooted firmware, i can simunlock the device with some techniques/apps, right?
or the safest is just to buy a network unlock code from the internet?

0hm05 said:
ok, after flashing your t-mobile banding is gone, but it will be still simlocked...
---------- Post added at 11:32 AM ---------- Previous post was at 11:27 AM ----------
aktually there is no way to unlock it for free. the only way is to buy a code.
i tried everything...no way
you can also go to a seitengassenjugoshop, they will make it 4 u
Click to expand...
Click to collapse
edit:
ok, just saw your edit.. so only the unlock code will work? how come? why those from 'seitengassenjugoshop' (i guess you meant those little mobile shops where they do repairs, decode, etc) can do it without the code? or they buy this code also?
if code is only solution: where should i buy it? i don't trust those websites and they also don't seem very cheap.

I dont know how it is with our device but i had the same problem with the htc desire c from my little brother and after i unlocked bootloader flashed cwm, a custom Firmware and rooted it the simlock was gone.
He had t-mobile lock as well.
Sent from my GT-I9105P using xda app-developers app

Nekator said:
I dont know how it is with our device but i hab the same problem with the htc desire c from my little brother and after i unlocked bootloader flashed cwm, a custom Firmware and rooted it the simlock was gone.
He had t-mobile lock as well.
Sent from my GT-I9105P using xda app-developers app
Click to expand...
Click to collapse
ok, so you are saying to first start with this prerooted firmware you've linked me, try eventually some simunlock apps and if it doesn't work try CWM's way with some firmware like cyanogenmod?
i guess that would void warranty in an irreversible way, or there are ways around it?
i've done it with CWM then tried many custom firmwares on my i9300 months ago, i guess i can manage to work my way through that. currently running CM 10.2 that just got in few days ago for i9300. the only thing is not to brick this i9105p, it's not mine, it's a friend's

U can reset binary counter with triangle away from chainfire.
So warranty is back
Sent from my GT-I9105P using xda app-developers app

ok, so i've tried many things, now trying stuff with CM10.1, but still no luck.. well, i guess that buying the code is the only solution for this phone?
i've also read about http://forum.xda-developers.com/showthread.php?t=1731931 method but can't find that nv_data.bin file anywhere in my /efs!
actually, all the files in /efs are very small and seem of no use.. what's wrong with those i9105p phones?
anyway: does anybody know a good trustworthy source for buying a code? of course, at the most reasonable price possible.

Getting sim-free from carrier-locked SGS2+

Hi,
I have SGS2+ locked on HT ERONET cerrier. I rooted it, put latest stock ROM. I would like to have sim-free phone since I want to use it on other cerrier. Any solutions? Cracks?

try galaxy s2 i9100 sim unlock it may worck ... there is lot of app to unlock sim in GS2 .. try and tell .........

nanoteam said:
try galaxy s2 i9100 sim unlock it may worck ... there is lot of app to unlock sim in GS2 .. try and tell .........
Click to expand...
Click to collapse
I tried few apps, none of them worked... Mostly it says: Model unknown.

change the build ... from i9105p to i9100 and reboot try again ...

Why is this thread in the Android development section?
Sent from my GT-I9105P using XDA Premium 4 mobile app

nanoteam said:
change the build ... from i9105p to i9100 and reboot try again ...
Click to expand...
Click to collapse
does this really work ?!?

as i know application unlocking sim via img blocks .. there is path with lock config or something like this .. i used mobile odin like this i changed build and it know it ... try it may work i didn't tried this ......good luck

[HELP][HELP]Samsung galaxy s2 plus...

My brother gifted s2 plus orange unlocked mobile from france I am in india this mobile is unlocked .. But 4.1.2 when i update to 4.2.2 it will locked or not or i will flash the indian stock rom or ordinary cynogenmod mod on orange mobile.....
Sent from my GT-S5360 using xda premium

Hello
It doesen't matter what stock 4.2.2 you flash, branding firmwares like orange or vodafone or else don't lock your device in that network, it just have branding apps like tv,deezer and others. You can flash any 4.2.2 update, you can find in our developer settings a thread about rooted firmwares without loosing warnity(bad english).
If your device is unlocked from the shop your brother bought it it doesen't matter the brand firmware.
Even you can install cm11, that is more flawless and faster but not stable.
I recommand you to try all those options, but after all make a backup for any situation
Hope that is what you mean by this post. Seeya.

blurhns said:
Hello
It doesen't matter what stock 4.2.2 you flash, branding firmwares like orange or vodafone or else don't lock your device in that network, it just have branding apps like tv,deezer and others. You can flash any 4.2.2 update, you can find in our developer settings a thread about rooted firmwares without loosing warnity(bad english).
If your device is unlocked from the shop your brother bought it it doesen't matter the brand firmware.
Even you can install cm11, that is more flawless and faster but not stable.
I recommand you to try all those options, but after all make a backup for any situation
Hope that is what you mean by this post. Seeya.
Click to expand...
Click to collapse
Thanks and i will flash any on s2 plus
Sent from my GT-S5360 using xda premium

What do you mean?

john morrision said:
Thanks and i will flash any on s2 plus
Sent from my GT-S5360 using xda premium
Click to expand...
Click to collapse
It doesn't matter what country firmware you are flashing,it won't lock your phone.

[Q] Sim Lock after Lollipop upgrade.

Hi there,
I have a Tesco 1st Gen Moto G and I recently upgraded to Lollipop.
It works fine now, but after getting a new Sim Card, when I put it in, I get the Sim Lock Code message. I've previously unlocked the phone and I'm unsure whether it is a Network lock (Like Tesco lock) that has somehow came back after the flash - Or if it's a lock that I have put on the phone. (Would that carry over after flash?)
So confused right now and I only have one attempt left before I'm locked out.
Please help. You're my only hope.

Sounds to me like a sim lock. I have flashed ROMs onto many different phones and the security lock from one ROM has never carried over to the new ROM.

audit13 said:
Sounds to me like a sim lock. I have flashed ROMs onto many different phones and the security lock from one ROM has never carried over to the new ROM.
Click to expand...
Click to collapse
Thanks mate. Much appreciated.

I've tried three different suppliers.
Each have said that my phone is not on the database.
(I'm assuming it is unlocked?)

Did you get the imei # by using the dial pad?

Yeah man - On all three occasions the vendor had to reimburse me.
I genuinely don't get it - but I've even tried resetting my PIN with my PUK and even that won't let me edit it.

(¯`·._.·[LaZaRuS]·._.·´¯) said:
Yeah man - On all three occasions the vendor had to reimburse me.
I genuinely don't get it - but I've even tried resetting my PIN with my PUK and even that won't let me edit it.
Click to expand...
Click to collapse
Can anyone else advise me on this? Has anyone else had this issue before?

(¯`·._.·[LaZaRuS]·._.·´¯) said:
Can anyone else advise me on this? Has anyone else had this issue before?
Click to expand...
Click to collapse
I was not able to sim unlock my phone few months ago. Then I flashed a new ROM and with the same code it worked.
Can you flash a lollipop ROM and try ?
Sent from my Moto G using XDA Free mobile app

mattheoh said:
I was not able to sim unlock my phone few months ago. Then I flashed a new ROM and with the same code it worked.
Can you flash a lollipop ROM and try ?
Sent from my Moto G using XDA Free mobile app
Click to expand...
Click to collapse
So you put the same unlock code into the phone that previously had unlocked it?
Hmmm...

(¯`·._.·[LaZaRuS]·._.·´¯) said:
So you put the same unlock code into the phone that previously had unlocked it?
Hmmm...
Click to expand...
Click to collapse
I explain with more details. In december, I had a new sim from a new provider. I tried the unlock code my former one gave me. It didn t work. Then I contacted 3 different merchant on eBay. My phone was also not found. But after a few days each time, they sent me a code. The 3 merchants gave me the same code I already had !
See this video : Unlock SIM Codes not working on Moto G first Gen …*: http://youtu.be/i883Nk6LuZE
At this time I was on DU ROM (KitKat).
One day I was deseperated ^^, I flashed CR Droid ROM (lollipop)... And with the same code, I unlocked my phone.
It was a soft problem. That s why I told you to try with another ROM (full wipe)
Maybe you will be lucky as me.
Sent from my Moto G using XDA Free mobile app
---------- Post added at 12:49 AM ---------- Previous post was at 12:41 AM ----------
Sorry I just understood what you meant. Indeed it was different for me cause my phone was sim locked and not yours about your sayings.
Sent from my Moto G using XDA Free mobile app

mattheoh said:
I explain with more details. In december, I had a new sim from a new provider. I tried the unlock code my former one gave me. It didn t work. Then I contacted 3 different merchant on eBay. My phone was also not found. But after a few days each time, they sent me a code. The 3 merchants gave me the same code I already had !
See this video : Unlock SIM Codes not working on Moto G first Gen …*: http://youtu.be/i883Nk6LuZE
At this time I was on DU ROM (KitKat).
One day I was deseperated ^^, I flashed CR Droid ROM (lollipop)... And with the same code, I unlocked my phone.
It was a soft problem. That s why I told you to try with another ROM (full wipe)
Maybe you will be lucky as me.
Sent from my Moto G using XDA Free mobile app
---------- Post added at 12:49 AM ---------- Previous post was at 12:41 AM ----------
Sorry I just understood what you meant. Indeed it was different for me cause my phone was sim locked and not yours about your sayings.
Sent from my Moto G using XDA Free mobile app
Click to expand...
Click to collapse
Hmmm - This is interesting. I've not got the original code that I got when I first unlocked it - And each vendor I bought from said my IMEI was not in the database.
Gutted.
So you think I should flash the rom?

A shame you don t have the original code... Not sure flashing a new ROM will solve your problem (but you have nothing to loose).
I know a guy on eBay very efficient who sales code for 2 bucks. Do you want his contact ?
Sent from my Moto G using XDA Free mobile app