Develop Bugs

[root] SGS2 SIM unlock code finder

About
Galaxy S2 SIM Unlock code finder will find the SIM unlock code for your device, or the unfreeze code. It'll take a few minutes to run, but you should end up with the code to SIM unlock your device. If the code doesn't work, don't keep trying it !. You may end up with a freeze. In that case, the program can also find the unfreeze code, but if the SIM unlock code is wrong in the first place, maybe so is the unfreeze code
Based on Odia's work here: http://forum.xda-developers.com/showthread.php?t=1064978
Thanks / Donate
Press the thanks button, and/or donate (or not) to Odia and/or myself
Also, please rate it 5 stars in Market if it works for you... I think some people who sell unlockers are purposely 1 starring it (seeing as nobody has reported any problems)
Download
Market link (mobile): market://details?id=eu.chainfire.sgs2simunlockcode
Market link (desktop): https://market.android.com/details?id=eu.chainfire.sgs2simunlockcode
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Also, attached !
!!! IMPORTANT NOTE: On some newer SGS2 devices, it does not work at all. You can try "Galaxy_S Unlock" app from "Helroz", but beware, it's unlock method is much more dangerous !!!
THIS IS ONLY FOR NON-US RESIDENTS, SORRY. YOUR LAWS HAVE GONE BACKWARDS, YOU'RE NOT ALLOWED TO SIM UNLOCK NO MORE

Nice. Good job.

Thank u so much... Keep up your great work, Chainfire

Downloaded and ran on my unlocked device and it came up with 00000000.
I am running to find the unfreexe code too, though not really sure how it works? Should I expect a valid code?

There is no SIM unlock code because there is no SIM lock ? Not sure about the unfreeze code, but I doubt it'll come up with one.

Nicely done.
You are truly a productive person.

Chainfire said:
There is no SIM unlock code because there is no SIM lock ? Not sure about the unfreeze code, but I doubt it'll come up with one.
Click to expand...
Click to collapse
Thanks.
I thought a SIM unlock code was realted to the device, not to the device and the *current state of the SIM lock* (ie, it must be locked to display an unlock code!)
It came up with an 8 digit number starting 9242
Is it actually a useful number if you have no sim lock?
James

I don't think so

Hi Chainfire, just poped into your thread to say, APP appears to be working fine.
As a note for everyone, even on a factory unlocked model the unfreeze code should still be present.

Odia said:
Hi Chainfire, just poped into your thread to say, APP appears to be working fine.
As a note for everyone, even on a factory unlocked model the unfreeze code should still be present.
Click to expand...
Click to collapse
But what is it actually useful for ?

This is crazy.
Requested my unlock code from o2 over a week ago. They contacted me on Saturday to say they do not have it and that they will have to resubmit the unlock code request to Samsung.
I still do not have an unlock code after 2 weeks of owning the phone.
Literally 5 minutes after seeing the xda tweet about this thread my phone is now unlocked.
Crazy, absolutely crazy that the community can do in 5 minutes what the corporate world can't achieve in 2 weeks.
I am blown away, many many thanks to the op, this is outstanding

O2 were no use at all for this. Chainfire's app sorted the issue in minutes. Great work. Thanks.

I already unlocked mine using Odia's method but this looks way easier.. Good Job man..

Let me act stupit and ask. What this do? What is it usefull for?
I have myself 5 virgin sim cards from tmobile.
Thanks for any explanatios

edit: nevermind i missed the [] tag

Chainfire said:
But what is it actually useful for ?
Click to expand...
Click to collapse
Normally in Samsung phones if you enter a phone lock code (PLK) and you forget the code, the master code can be used to reset it, I am not sure if Samsung Android phones would work in the same way because the PLK does not seem to be written to nv_data.bin when activated.

kpoyias96 said:
I already unlocked mine using Odia's method but this looks way easier.. Good Job man..
Click to expand...
Click to collapse
Its a lot easier for the less experienced users and Chainfire has done a very good job with the APK, although using the manual method with a GFX card to brute force the hash is a lot quicker

I need help - got my S2 from O2 which it's locked to. After nine days, still no unlock code from O2, apparently delays in obtaining them.
Downloaded and ran this app, but failed with 'Could not acquire Supersuer access! Is your device rooted?'
What does this mean and what do I need to do to resolve it?
Thanks in advance.

planet57 said:
I need help - got my S2 from O2 which it's locked to. After nine days, still no unlock code from O2, apparently delays in obtaining them.
Downloaded and ran this app, but failed with 'Could not acquire Supersuer access! Is your device rooted?'
What does this mean and what do I need to do to resolve it?
Thanks in advance.
Click to expand...
Click to collapse
The message "Could not acquire Supersuer access! Is your device rooted" actually told you what is wrong. Guess you did not root your S2. Follow the link to get your S2 rooted.
http://forum.xda-developers.com/showthread.php?t=1075278
http://forum.xda-developers.com/showthread.php?t=1056334

I have installed this and got my Unfreeze Code, however the Unlock code is just comes up as 0000000000.
It also take much less than a second to generate it, so I assume there's a problem?
The Unfreeze code took a few minutes and produced an actual code ... have I missed something?

Sim unlock ?

Hi
Just wanted to make sure i have understand correctly:
if i will go to here : [email protected] sonyericsson
and get the key i will be able to SIM Unlock my device ?
Regards,
Labba.

labbala said:
Hi
Just wanted to make sure i have understand correctly:
if i will go to here : [email protected] sonyericsson
and get the key i will be able to SIM Unlock my device ?
Regards,
Labba.
Click to expand...
Click to collapse
If you bought an unbranded phone, yes.

sorry didn't got you...
This is an AT&T phone this is why i want to unlock the SIM lock to AT&T so i could use somthing else with this phone..

labbala said:
sorry didn't got you...
This is an AT&T phone this is why i want to unlock the SIM lock to AT&T so i could use somthing else with this phone..
Click to expand...
Click to collapse
Only sim unlocked phones can use the sony bootloader unlock service, you will have to pay one of the people here for a remote unlock if you want sim/bootloader unlocked.

Thank you.

Just a nother quick question...
since i have a 4G AT&T xperia play i can acctually unloack the bootloader and by re-flashing the ROM actually preform a SIM unlocking like it discribed here: http://forum.xda-developers.com/showthread.php?t=1034371
????
will this work on my AT&T 4G device ?

labbala said:
Just a nother quick question...
since i have a 4G AT&T xperia play i can acctually unloack the bootloader and by re-flashing the ROM actually preform a SIM unlocking like it discribed here: http://forum.xda-developers.com/showthread.php?t=1034371
????
will this work on my AT&T 4G device ?
Click to expand...
Click to collapse
Nope, this link is for sim unlocked phones
I'm gonna use Alejandrissimo in the general forum to unlock my phone tonight...

ok ... so just to make sure i got it right:
1. i need to first unlock my sim
2. i will be able than to unlock the bootloader
?
did i got it right ? since this is actually collides with what i'm reading here:
http://forum.xda-developers.com/showthread.php?t=1349669
[astralmaze05]: ok i understand, if i sim unlock it using the online unlocking services will it also unlock my bootloader automatically?
[Logseman]: No. However, the contrary is true: if you pay to unlock your bootloader your Sim lock will vanish as well.
Click to expand...
Click to collapse
Here you see that it was said that unlocking the SIM doesn't mean that you can unlock the bootload...
any response ?

I insist: unlocking your sim won't unlock your bootloader, you will have to unlock it separately.
However, unlocking the bootloader automatically sim-unlocks the phone.
Thus, save yourself the grief, contact any of the unlockers mentioned in the thread of my signature, and just unlock the bootloader.

I will since i'm seeing it getting more complex then i wanted.
but still i want just to understand if unlocking your sim won't unlock the bootloader but, after the sim is unloacked then i could use the bootload unloacker online from sony, no?

No, you can't. The official Sony bootloader unlocking method is only valid for phones which were sold originally Sim-unlocked. Sim-unlocking an originally Sim locked phone will not make you eligible for the Sony bootloader unlocking method, so you would have to use Alejandrissimo's bootloader unlock method anyway.

Thank you ! now i got it!
i hope this thread will be a good use for others as well.

labbala said:
I will since i'm seeing it getting more complex then i wanted.
but still i want just to understand if unlocking your sim won't unlock the bootloader but, after the sim is unloacked then i could use the bootload unloacker online from sony, no?
Click to expand...
Click to collapse
No matter what you do, you can NEVER use the official bootloader unlocker.
Sent from my R800i using Tapatalk

I would like to thank Alejandrissimo for his quick and working unlocking method from remote!!! works wonderful!!!

I just used this service...
http://www.cellunlocker.net/sony-ericsson-unlock.php
Make sure you have another SIM Card that is different from your service provider. Only $7.99, thought it was a good deal.
Edit:
Fudge, I should have read a little longer ...
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LG k10 (K425-at&t) stock rom and rooting questions

Howdy y'all,
I got a LG K10 (K425 at&t USA) from a friend of mine and unlocked it to use on t-mobile. I went to tether it today and got an authorization error. I decided I wanted to root it, get rid of all of the at&t bloatware still on it and get the tethering and mobile hotspot working. My question is twofold:
1) Is there just a standard, carrier neutral, stock ROM for this device? If I want to get rid of carrier bloatware I don't want to just throw another carrier's bloatware on it.
2) Has anyone had any success rooting this phone? I have tried "adb reboot bootloader", LGUP in download mode, and LG Flash Tool to no avail. I have rooted other devices before, some were more troublesome than others, but this one is stumping me. Any suggestions?
Thank you!

waituntilishake said:
Howdy y'all,
I got a LG K10 (K425 at&t USA) from a friend of mine and unlocked it to use on t-mobile. I went to tether it today and got an authorization error. I decided I wanted to root it, get rid of all of the at&t bloatware still on it and get the tethering and mobile hotspot working. My question is twofold:
1) Is there just a standard, carrier neutral, stock ROM for this device? If I want to get rid of carrier bloatware I don't want to just throw another carrier's bloatware on it.
2) Has anyone had any success rooting this phone? I have tried "adb reboot bootloader", LGUP in download mode, and LG Flash Tool to no avail. I have rooted other devices before, some were more troublesome than others, but this one is stumping me. Any suggestions?
Thank you!
Click to expand...
Click to collapse
I've been wondering the same thing as of recently. I got this phone a couple of days ago, and even after looking around here and other forums for a few days, I can't find any concrete evidence that you can root it, or put a custom rom on it.

N1nDr0id said:
I've been wondering the same thing as of recently. I got this phone a couple of days ago, and even after looking around here and other forums for a few days, I can't find any concrete evidence that you can root it, or put a custom rom on it.
Click to expand...
Click to collapse
Currently, at&t and their bull crap bootloader's won't allow root. Although user pvineeth97 has done great work on other models, he does not have a device for extracting the aboot in order to successfully crate root

Nobodyslight said:
Currently, at&t and their bull crap bootloader's won't allow root. Although user pvineeth97 has done great work on other models, he does not have a device for extracting the aboot in order to successfully crate root
Click to expand...
Click to collapse
Damnit... I certainly hope we get root or an unlocked bootloader soon! I mean, I like what LG's done, I'd just much rather be using stock, or at the very least, a rom that doesn't include all of the AT&T bloatware.

waituntilishake said:
Howdy y'all,
I got a LG K10 (K425 at&t USA) from a friend of mine and unlocked it to use on t-mobile. I went to tether it today and got an authorization error. I decided I wanted to root it, get rid of all of the at&t bloatware still on it and get the tethering and mobile hotspot working. My question is twofold:
1) Is there just a standard, carrier neutral, stock ROM for this device? If I want to get rid of carrier bloatware I don't want to just throw another carrier's bloatware on it.
2) Has anyone had any success rooting this phone? I have tried "adb reboot bootloader", LGUP in download mode, and LG Flash Tool to no avail. I have rooted other devices before, some were more troublesome than others, but this one is stumping me. Any suggestions?
Thank you!
Click to expand...
Click to collapse
I don't own a AT&T K10. I have a carrier neutral K10. Till now we have bootloader unlock, root, TWRP and custom ROM (Coming Soon!) for T-Mobile/MetroPCS. Do you have Android 5.1.1 firmware for your phone. We could do something about it if we have the firmware

pvineeth97 said:
I don't own a AT&T K10. I have a carrier neutral K10. Till now we have bootloader unlock, root, TWRP and custom ROM (Coming Soon!) for T-Mobile/MetroPCS. Do you have Android 5.1.1 firmware for your phone. We could do something about it if we have the firmware
Click to expand...
Click to collapse
What do I need to do to extract the aboot?
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I was researching the same topic (where to get K425 ROM that I can root OR downgrade to 5.1) and found the following link:
http://giaiphapdidong.net/san-pham/lg-k10-k425-att-rom-userdebug-v09a-v07a-rooted/
It is in a foreign language, but with google translator I was able to understand that this site provides two rooted firmwares for AT&T K425. Unfortunately, when you download the .TOT files you see that the archive is passworded.
Anyone else tried those files?
l0h

hola
hi how are all, I have a problem with a cell phone like, I live in Cuba and I have a K4 K425, but the coverage is going in many parts, I've been looking to upload the andriod check but not found, I just found of a ka 10 ugual but a k428 and my question is you can put that, I do not know much about phones so I ask you to advise me

How to use dual SIM on H930DS with H930v20d and no 2G network.

Hi all, I flashed the update from https://forum.xda-developers.com/lg-v30/development/h930-lg-v30-european-market-h930-t3779076 and upon flashing I noticed that only the SIM that had data activated could connect to a network, I dug around a bit and found out that it was trying to connect to a 2G GSM network which no longer exists on my carrier.
I found no other tutorials so if you are stuck this is how I fixed it on my phone.
You need to do this every time your phone restarts until someone finds a way to make it stay like this
1) Open your phone app
It does not need to be the stock app, you just need to open it
2) Enter the following hash code
*#*#4636#*#* THIS IS DIFFERENT FROM THE NORMAL LG HIDDEN MENU
It will look like this
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Then go to phone information
It will look like this
3) Change it from GSM only to LTE / WCDMA
You should now have your service back

i'm unable to go into Phone Information. It shows "This application does not work on this device."
i'm using Singapore variant H930DS. Revert back to Nougat due as i need dual sim to works.

If I only use one sim at a time, would I still have issues with the data connection?

toiret said:
Hi all, I flashed the update from https://forum.xda-developers.com/lg-v30/development/h930-lg-v30-european-market-h930-t3779076 and upon flashing I noticed that only the SIM that had data activated could connect to a network, I dug around a bit and found out that it was trying to connect to a 2G GSM network which no longer exists on my carrier.
I found no other tutorials so if you are stuck this is how I fixed it on my phone.
You need to do this every time your phone restarts until someone finds a way to make it stay like this
1) Open your phone app
It does not need to be the stock app, you just need to open it
2) Enter the following hash code
*#*#4636#*#* THIS IS DIFFERENT FROM THE NORMAL LG HIDDEN MENU
It will look like this
Then go to phone information
It will look like this
3) Change it from GSM only to LTE / WCDMA
You should now have your service back
Click to expand...
Click to collapse
I did this in My G6 H870DS ..
"Installed H870 Oreo on My H870DS"
But signal not works .. Any ideas ?

HuEx said:
I did this in My G6 H870DS ..
"Installed H870 Oreo on My H870DS"
But signal not works .. Any ideas ?
Click to expand...
Click to collapse
Various things to check try...
Your APN is correct and enabled?
Try adding another APN.for your carrier (look up settings online), reboot, see if it acts different.
Try flashing your old modem in dev patched LG LGUP (modem only). May not work as it's Nougat and you're on Oreo now and for a "different" model number, but in Motorola your could flash previous versions. Not sure about LG.
Flash back to Nougat in LGUP.

ChazzMatt said:
Various things to check try...
Your APN is correct and enabled?
Try adding another APN.for your carrier (look up settings online), reboot, see if it acts different.
Try flashing your old modem in dev patched LG LGUP (modem only). May not work as it's Nougat and you're on Oreo now and for a "different" model number, but in Motorola your could flash previous versions. Not sure about LG.
Flash back to Nougat in LGUP.
Click to expand...
Click to collapse
i Cant access APn ..
if u Plz Check this .. https://app.box.com/s/36i65wafqln3bq1pftpth3fx45ieb5rs
i have vodafone and circle above keep moving like searching about signal .. im in area with signal .. "checked this with another one "

ChazzMatt said:
Various things to check try...
Your APN is correct and enabled?
Try adding another APN.for your carrier (look up settings online), reboot, see if it acts different.
Try flashing your old modem in dev patched LG LGUP (modem only). May not work as it's Nougat and you're on Oreo now and for a "different" model number, but in Motorola your could flash previous versions. Not sure about LG.
Flash back to Nougat in LGUP.
Click to expand...
Click to collapse
no .. Apn not enabled .
excuse me .. how to flash old modem ? i dont knw if u plz could explain this point

HuEx said:
no .. Apn not enabled .
excuse me .. how to flash old modem ? i dont knw if u plz could explain this point
Click to expand...
Click to collapse
Show screenshot of APN settings, please. Like this. Because if the APN is correct but not enabled, then you need to turn it on, you need to enable it.
Sent via open market LG US998 V30/V30+

ChazzMatt said:
Show screenshot of APN settings, please. Like this. Because if the APN is correct but not enabled, then you need to turn it on, you need to enable it.
Sent via open market LG US998 V30/V30+
Click to expand...
Click to collapse
i cant access Mobile Networks it cant open cause i think mobile doesnt recognize sim ..
also something i cant flash old modem only .. H870DS "Bootloader Locked "
I Think i will Back to Nougat ..
Thank u ChazzMatt ..
Im so sorry .. Have a Nice Day Bro .. ^^

Bought in USA, can do something to use in EU?

Hey,
I bought an LG G7 ThinQ (LMG710TM) in the USA, and i does not connect to the LTE/4G mobile data network here in Hungary. Since it's a T-mobile version i thought if i could unlock it, it may work (i can use my Telekom SIM since the beggining to call/send msg), but i can't get the unlock bin trough LG site, because it says it's an LMG710TMP version which is unlockable, but the phone itself says it just te TM version withouth the P on the end.
Anyways should I even bother to try to unlock it, because i didn't really find any infos which frequencies are supported by my own device, so it maybe just blocked by the software or not.
Thanks!!

Mr.Tree said:
Hey,
I bought an LG G7 ThinQ (LMG710TM) in the USA, and i does not connect to the LTE/4G mobile data network here in Hungary. Since it's a T-mobile version i thought if i could unlock it, it may work (i can use my Telekom SIM since the beggining to call/send msg), but i can't get the unlock bin trough LG site, because it says it's an LMG710TMP version which is unlockable, but the phone itself says it just te TM version withouth the P on the end.
Anyways should I even bother to try to unlock it, because i didn't really find any infos which frequencies are supported by my own device, so it maybe just blocked by the software or not.
Thanks!!
Click to expand...
Click to collapse
It's not rooted right?
Enter the service menu and check the bands. If it says "SUCCESS" then that band is supported. If it says "FAIL" it's not.
Bands 2, 4 and 12 are the ones usually used with GSM LTE in America.

Falkentyne said:
It's not rooted right?
Enter the service menu and check the bands. If it says "SUCCESS" then that band is supported. If it says "FAIL" it's not.
Bands 2, 4 and 12 are the ones usually used with GSM LTE in America.
Click to expand...
Click to collapse
Thank you for your help!
And yes, it's not rooted.
I checked the service menu, the listed(pic1,pic2) bands are all working, at least it said "SUCCESS" when i clicked on them, and in Hungary they use band 3,7 and 20.
I set it on 3, tried to reinsert simcard and restart phone, and airplane mode etc,etc little tricks to get it work, but still no mobile data.
The weird thing i found is the LTE Carrier Aggregation(pic3,pic4). It says what is says on the picture and i can't change it, because it tells me i need to restart my phone. I did it but no changes, so it just stuck at those options. I suspect the problem is there for some reasons that i don't know.
On pic5/pic6 those are some infos about the LTE stuff, sometimes it said Not Supported Mode at the Mode Pref, sometimes it said Automatic. Sadly i don't really know what that means, maybe it will provide some infos to you.
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Mr.Tree said:
Thank you for your help!
And yes, it's not rooted.
I checked the service menu, the listed(pic1,pic2) bands are all working, at least it said "SUCCESS" when i clicked on them, and in Hungary they use band 3,7 and 20.
I set it on 3, tried to reinsert simcard and restart phone, and airplane mode etc,etc little tricks to get it work, but still no mobile data.
The weird thing i found is the LTE Carrier Aggregation(pic3,pic4). It says what is says on the picture and i can't change it, because it tells me i need to restart my phone. I did it but no changes, so it just stuck at those options. I suspect the problem is there for some reasons that i don't know.
On pic5/pic6 those are some infos about the LTE stuff, sometimes it said Not Supported Mode at the Mode Pref, sometimes it said Automatic. Sadly i don't really know what that means, maybe it will provide some infos to you.
Click to expand...
Click to collapse
Did you contact the mobile provider and ask them to add your phone's IMEI to their service?
In USA, some people who bought the LG unlocked international phones did not have mobile data until they called the carrier and had them register the IMEI number.

You'll most likely need to setup your APN manually. Go to settings-network and add APN info for your provider there!

bdasmith said:
You'll most likely need to setup your APN manually. Go to settings-network and add APN info for your provider there!
Click to expand...
Click to collapse
I set up the APN and it work now. Thank you very much for your help, it's kinda unbelieavable that it was this easy!

Mr.Tree said:
I set up the APN and it work now. Thank you very much for your help, it's kinda unbelieavable that it was this easy!
Click to expand...
Click to collapse
Your welcome. Glad to help ?