yashsingh1/xdaforums huggingface dataset:
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] sgs2newbee:
It worked on SGS3 ATT sgh 747

It worked on SGS3 ATT sgh 747

Thanks :)
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] RockRatt:
I just went through the motions to see what I would find out due to what I wrote below. It looked like I was already unlocked, so I confirmed that the unlock code from ATT worked. Then my buddy at work has a T-Mobile SGS3 so I tried out the method from the link on his phone. Then we swapped sim cards. Sure enough BOTH my ATT SGS3 and his T-MOBILE SGS3 are unlocked. Great find and thanks for the link.

(I just saw a mashable article that said as of this coming Saturday unlocking phones would be illegal for users with exceptions for getting a unlock code from your service provider. So I called ATT and got the unlock code from them. I wonder if all the sim unlock apps on the market will be gone come Saturday?)
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] oduca:
I have a question.

Since I have to be completely stock to do this, can install a custom rom after or will my unlock be gone after I install a custom rom?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] stewartsoda:
Installing a custom ROM does not affect your unlock status. Once you're unlocked, you're always unlocked.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] oduca:
Need help

I can't get this to work, can someone guide me. I'm on Rogers, I was on AOKP Task650 then I went back into stock using ODIN to this.

This is the following steps I did:

Step 1: Dail *#197328640#

Step 2: [1] UMTS

Step 3: [1] DEBUG SCREEN

Step 4: [8] PHONE CONTROL

Step 5: [6] NETWORK LOCK

Step 6: PERSO SHA256 OFF

Step 7: wait 30 seconds...

Step 8: Press menu button, Then "Back"

Step 7: wait 60 seconds...

Step: 9 Press [6] NETWORK LOCK

I can't get into [4] NW Lock NV Data INITIALLIZ

I only see this option when I press [6] PHONE LOCK:

I tried using WIND Mobile sim card but no luck.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] nkawal:
You need to be on stock jellybean 4.1.1 with touchwiz.

Sent from my GS3 powered by AOKP 4.2.1 by Task650.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] grinmaul:
Just unlocked my rogers s3 so my friend can use it on telus, worked great, thank you for the info.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] oduca:
thanks i got it to work
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] piko72:
Thanks work on s3 from bell.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] RockRatt:
As I mentioned before it worked for my ATT SGS3, and a few buddies with their T-Mobile sgs3's. But it would not work at all for the Verizon SGS3. It would not even open up the dialer code without an error. I wonder what they locked down or is there different digits to dial for it?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] outlogic:
Great free unlock for SAMSUNG SGH-I747

Didn't work for me at first. Downloaded Samsung Kies, updated my stock ROM to 4.1.1 and tried again. Worked like a charm this time on my now unlocked SAMSUNG SGH-I747.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] sahuja:
Worked for me
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] kenkill:
worked on telus 4.1.1 I747M. yesss

tested on bell, virgin, rogers and videotron

:good::good::good::good::good:
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] RockRatt:
Also worked on my I777 SGS2, besides my other phones I listed earlier
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] troycarpenter:
I was able to unlock my wife's T-Mobile S3 on a stock ROM, as well as my AT&T S3 running i747z VLDLK4 (yes, it's based on a stock ROM, but it's not the stock ROM for my phone).

After procedure I was able to use her T-Mobile card in my phone and vice-versa.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] JustSayTech:
i have the i747 and tried this method only to end up with a message saying "sim not provisioned mm2" when i turn the phone on

it wont even connect to att anymore

i followed the instructions precisely but first updating to 4.1.1 through kies

the phone will not register on any networks regardless of how many searches or how many times i keep tapping the apn

i used a tmobile sim as thats my main service, if i take the sim out an put it in another phone i make calls fine

the s3 was working on att just before doing this method

any thoughts?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] blacksunshine93:
when i go back from "perso SHA256 off" and click "NW Lock NV Data INITIALLIZ" it just shows "perso SHA256 off screen again. is this normal?????
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] xxsicknessxx:
I saw your sig. Update your twrp bro or your going run into 0folder issues when upgrading to 4.2
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] imran025:
Just curious to know if anyone else has the answer. Once unlocked is it preserved if I switch the ROM from the stock to a custom ROM?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] pcshano:
once it's unlock it is unlock

btw, this method works best with 4.0.4 ICS, i just did on one of my uncle's AT&T S3 and turned out great

timing is really important though
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] DXP2:
Seems like its worth a shot.

If only I had a non AT&T sim laying around.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] BRITINCANADA:
Works good

working here i747m Telus now running on Rogers
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] mdiaz33685:
bumped... put notes on original thread....
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] spindley:
Worked here as well, Rogers GS3 unlocked to work on Telus.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] xddd00:
Worked thanks!!! SGH-T999 locked/T-Mobile and now on Movistar - Venezuela
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] saltu:
Yes!. I rooted after that and switched many rom, network works
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] yeric:
Works on my TELUS SGS3 with root66_TLS_I747MVLDLK4 rom.

Tested with Rogers SIM
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] runbuh:
I followed the directions, including the 30-second pauses, using my AT&T S3 running stock (no root) 4.1.1/UCDLK3. I wasn't sure which SIM to have inside the phone during the process, so I used my Orange SIM so that I wouldn't screw up my AT&T SIM. With my Orange SIM in the phone, I did get the "SIM Unlock" message before following the unlock steps. After following the steps in the doc, everything appears to be fine, and my phone functions as if it is unlocked.

After following the unlock steps, here's what I did to test:

After cold booting the phone with my Orange SIM installed, I did not get a SIM Unlock screen. I powered off and swapped in my AT&T SIM and everything looks normal (data and phone calls working normally). I powered off again and put the Orange SIM in. No SIM unlock message appears. I did see what I would call a "No Service" icon at the top (circle with a slash), but after a minute or so, it changed to the signal strength bar and popped up a "SIM Not Provisioned MM#2" message, which I would expect. Going into Settings -> About -> Status shows the network as "Unknown". My IMEI is intact. Swap in the AT&T SIM one more time, no errors, Settings -> About -> Status shows network as "AT&T", status bar shows the normal 4G icon (we're not LTE, yet). Phone is working fine...
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] leos0000:
How i can unlock s3 from bell canada.can some one help please
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] DelphinusMinor:
I believe I successfully unlocked mine just a few mins ago. Same carrier as you. The Bell i747 variant. I use(and used tonight) ATT firmwares tho, for some reason I always have minor issues here and there with the BCA roms that are actually intended for my phone.

I had tried everything to unlock my phone, and was planning on paying to have it done this week actually...

Eventually I simply downloaded the stock(but pre-rooted) Android 4.1.1 rom for my phone.

So I used the Odin method to unroot by flashing back to stock. I then followed the steps outlined here;

After I did all of that, I got a message saying it was a success. I can't confirm it 100percent yet, but when I get a new sim, I will come back to this thread and update it.

Now, once you have gotten the message saying it was a success, simply root your phone again, and flash your preferred recovery, and yer good to go. =-}

Note, you MUST be on stock Android 4.1.1 in order to do this. I tried on 4.2.2, 4.2.1, 4.1.2, and 4.01. None worked nor did they show option 4.

Also, you are supposed to only be able to do this on a totally stock rom, I assume that means not rooted even. Anyway, I did this on an almost totally stock rom. I used a prerooted stock Android 4.1.1 firmware. It was just rooted tho, nothing else was different from a totally stock/unrooted firmware.

I hope this helps and encourages you. It was a bit of a pain in the rump trying to sort all of this out, but I think I finally succeeded tonight. =-}
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] DelphinusMinor:
Update... I was able to put a sim card in from another carrier and my phone didn't ask for a network code.

I guess it worked! :cyclops:
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] xxgunnerxx:
works perfectly! On virgin's network from Rogers.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] post-mortem:
Do you mind sharing a link to the prerooted stock 4.1.1 you used?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] DelphinusMinor:
Hi there, this is the rom I used.

Just make sure you get the right rom for your phone/carrier. Also make sure you grab a 4.1.1 rom and not a 4.04 rom by mistake. This will not work on any other version of Android.

http://xdaforums.com/showthread.php?t=1739426

They are already rooted. Flash it, and then do the code to network unlock. Do this before doing anything. Before flashing your recovery or even installing any apps.

It may not make a diff, but that is how I had success.

Good luck and keep me posted if you like. =-}

---------- Post added at 05:21 PM ---------- Previous post was at 05:16 PM ----------

Once you are done, and you know the unlock was successful, simply go back to whatever rom you were previously using via a nandroid you may have made, or by flashing, or however way you plan on doing it.

You won't lose the unlock.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] post-mortem:
Thanks. It turns out I've actually already done exactly as you said!
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] DelphinusMinor:
You you had already gone thru that process to get to 4.1.1? Did you get a message saying successful after doing the code and the options?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] post-mortem:
My phone came with 4.1.1 on it, so I did the unlock 1st, then used the thread you linked to to root. When you said you flashed a prerooted stock ROM, I wanted to have it in case I needed it. Turns out I already had it :P
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] DelphinusMinor:
Nice... I am glad it worked out for ya. =-}
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] tat2messiah:
Worked perfectly for me
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] jeffyv2:
So now that I successfuly unlocked it can I flash a different ROM? Or would I need to redo it once I flash the new one
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] post-mortem:
Nope, the unlock will stick.

Flash away!
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Elite2k:
TY so much

thanks so much works on my rogers i747 perfectly haha saved me $10 from ebay man this rocks.. for pplz i have 4.1.1 i747mvldlk4 modem
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] ipilcher:
Another satisfied customer

Worked great on my SGH-I747 (AT&T). I run CM10, so I used the following steps:

Make a nandroid backup to the external SD card.

Power off and remove external SD card.

Use Odin to flash a pre-rooted stock ROM. This gave me a boot loop when it first tried to boot.

Boot into stock recovery and do a factory reset/wipe.

Perform carrier unlock steps from OP.

Test with T-Mobile SIM.

Install ROM Manager from Play Store.

Use ROM Manager to flash ClockWorkMod Recovery.

Power off and insert external SD card.

Boot into ClockWorkMod Recovery and restore nandroid backup from external SD card. (Wipe caches and fix permissions on general principles.)

Reboot into restored CyanogenMod and test that both AT&T and T-Mobile SIMs work.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] f47h3r:
yes it Works but i recommend you to flash another rom so you can get all options at the hidden tech menú, i did it today and work just fine.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] DelphinusMinor:
Exactly.

You also have to go back to a 4.1.1 rom in order to do these steps, and then flash back to whatever version rom you prefer.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] blackmoor2000:
Flashed back to telus rooted 4.1.1., unlocked using procedure in the op, and flashed back to 4.1.2 rom.

Worked like a charm on the Virgin network..........:good:
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] lunasphyxia:
Worked on SGH-i747M on Bell, now unlocked!
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] draexo:
If the phone is on 4.1.2 stock, do I need to go backward to 4.1.1 stock for this to work? Do I need to be on a certain modem firmware? I can flash modem firmware's separately and not mess with the ROM that would be great.

The phone is a friends and I am trying to do this as quickly and painlessly as possible. I almost suggested she use one of the pay apps in the Play Store.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] DelphinusMinor:
Yes, you must go back to at least 4.1.1 to do this. Any firmware newer then that and you don't get some of the menu options.

As for the modem, flashing diff modems won't affect your unlock. =-}
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] steven20052009:
If I unlock my S3 on 4.1.1 then I upgraded to 4.1.2. Does my phone still keep the unlock? or Do I need to keep it at 4.1.1.

Thanks.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] DelphinusMinor:
You won't lose your unlock. You can flash back to any firmware after that. =-}
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] steven20052009:
Thank you very much....
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] indianinworld:
infact this does not work on S3 from Three, UK.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] x3knet:
Works great, thanks!
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] androiddude911:
Thanks Bro, Just saved me $20
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Notorious_F.A.T:
Worked for me on a Rogers S3 after going back to 4.1.1 with Odin. 4.1.2 does not work.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] kmare:
Worked on a Bell S3 for me. (w/downgrade to 4.1.1 from 4.1.2)

If you have trouble finding the original 4.1.1 ROMs, the Root 66 ROM worked fine for me: http://xdaforums.com/showthread.php?t=1739426
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] yigael1138:
only works for lower version androids. What about 4.3?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] saveenshetty:
i was not able t do it

i tried doing this but the problem was as follows

in main menu I select umts>debug screen>phone controll> network lock > here i select the third option (PERSO SHA256OFF)then the scree shows

SHA256_ENABLE_FLAG[0]

SHA256_OFF=>NOT CHANGE

please help me :crying:
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] bitl3ss:
I originally followed this and it worked, since I was going out of the country as a backup I called att and ask for the unlock code. It took 3 tries to reach a tech who would give it to me since I was on contract. Make sure you you get routed to smart phone support, they seem more willing give it out.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] diablo009:
Its been over an year now since the phone released. A call to customer care should have them send you the code. But you got to be on stock to unlock phone.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] audit13:
What rom are you on? You need to been on stock 4.1.1.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] chowming:
I have used this several times. Unlock phone then chainfire auto root

16GB_AT&T_dlk3_stock_with_count_reset.zip

Read the first post about 4.3 compatibility
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Bzow:
I'm trying to unlock a Galaxy S 3 with an official AT&T unlock code. The phone is all stock 4.3 and the code is not accepted. AT&T has no idea why this isn't working. Any ideas? Has anyone had this issue?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] audit13:
AT&T is sure the code is correct? Does your phone show the imei by dialing *#06#?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] ra4013:
If on 4.1.2 could you downgrade the modem, unlock then upgrade the modem?

Sent from my SAMSUNG-SGH-I747
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] audit13:
Are you on stock 4.1.2? I was on stock 4.1.2 for Bell (i747m) and was able to flash to 4.1.1 using Odin, unlock my phone, and flash back to 4.1.2. Flashing to 4.1.1 will wipe all data and apps on your phone.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Guerric:
bump

Hi guys,

Any update on unlocking on 4.3?

I've got root, but can't find a working method to unlock. :(
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] DelphinusMinor:
You need to roll back to an older rom. You can only unlock Android 4.1.1 and lower. Once you unlock using the dial method in this thread, you can flash back to the rom of your choice and you won't lose the unlock. =-}
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Guerric:
Are you sure I can safely downgrade to 4.1.1 ? Another thread suggests that doing so will brick the phone: http://xdaforums.com/showthread.php?t=2529200 (messages #3, #5 and #6))
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] DelphinusMinor:
Oh wow, it had been so long since I have done this(pre-Android 4.3) I didn't realize downgrading from 4.3 would brick your phone.

What about downgrading to say 4.1.2 and from there to 4.1.1?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] melkis:
It looks like Theres a way http://xdaforums.com/showthread.php?t=2625461, but still no tested with an s3 i747 att 4.3
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] underscorenorm:
I've done this with the ATT GS2 and the ATT GS3. (I'm a tmobile customer.) The GS2 needs the UCMC modem but the GS 3 worked just fine. You do have to downgrade to 4.1.1 (you can do this automatically with kies) to get to the dialer menus, and the settings wont stick with any other version.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] melkis:
did you downgrade 4.3 to 4.1.1?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] underscorenorm:
I don't remember which version the phone was on, but I don't think it was 4.3. I didn't use odin though, which I think is worth saying. The phone had whatever stock OS was on it at the time, (I think 4.1.2) so I put it in download mode and let Kies do its "emergency firmware recovery." I'm not sure how you could brick the phone if you're using a samsung bootloader with a samsung flash program. Granted, I'm not going to blow away my 4.4 installation in an attempt to test this.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Dieselrellim:
You will brick your phone if you down grade from 4.3
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] audit13:
The Samsung 4.3 ROM included a new bootloader and Knox. Attempting to downgrade the bootloader will trip the knox counter which voids the warranty and bricks the phone.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] shamyles:
gs3

hi

i have thisphone model SGH-I747M, from fido, and i want to use it using the bell network but my phone is locked by fido, how can i unlock it, thanks.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] audit13:
What ROM is currently on your phone? You need to downgrade to a completely stock 4.1.1 ROM, including the bootlaoder.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] shamyles:
Sg3

Its 4.3. I just updated it yesterday.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] audit13:
Once you are on 4.3, you cannot downgrade the bootloader to 4.1.1. You will have to purchase an unlock code.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] MrBrown72:
4.3 works

I was just having this problem today and thought others may be looking here like I was. I re-installed "AT&T I747 UCUEMJB Stock Restore "stock 4.3 from enewman17's thread and did the following.

ATT has given me the same unlock code again and again. As a result of my extensive internet search, I found this and this worked for me. I unlocked my phone with the same unlock code given by ATT. Hope this would be helpful.

Inset a NON ATT sim and switch on the phone.

When it prompts you to enter the unlock code, dismiss the unlock code screen.

a. Go to the Dial pad and dial *#197328640#

b. Please click on number [1] UMTS > [1] Debugging screen > [8] Phone Control > [6] NETWORK LOCK

c. You will see 3 options

d. Please click on number [1] Perso Sha256 INFO, the screen will change slightly

e. Please hit the MENU button then when the menu pops up please carefully hit BACK to return to the previous screen

f. Next Please click on number [2] Perso Sha256 ON, the screen will change again to a one line message

g. Restart the phone on the screen by holding the power button and click RESTART

h. When the phone prompts for the unlock code simply enter the unlock code provided to you

i. Your phone is now permanently unlocked!
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] rough company:
4.4.2 firmware unlock process

i tried this but it didn't work for me did anyone unlock their phone on the 4.4.2 firmware and can you give me the process please?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] audit13:
^^ Are you running stock 4.4.2?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] wpscully:
Would you please check something for me? Navigate Setting --> More --> About device --> Status Way at the bottom, below Up time, what is the value of "Device status"?

I have this theory that if the Device status is "custom" then the unlock code will not work. I may be wrong... this is only a theory of mine.

For my device I hope to find an pure AT&T image, with no root, no added software, no removed software... pristine. I'd like to flash it with ODIN and see if I can get the device status to change to... well, I'm not sure what, other than saying "not custom".
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] rough company:
same as you say

well mine is saying custom also
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] bikrtrash:
I tried this on my AT&T S3 ver. 4.3

It's fully rooted and knox has been removed.

It did not work for me.....

Just an FYI....
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] audit13:
This method requires you to be on stock 4.1.1 in order to use the free unlock method. Newer versions of the dialler had the hidden menu options removed.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] DelphinusMinor:
I was coming here to say just that. Hah. :D

Exactly. You must be on stock 4.1.1 in order to utilize this method.

Just flash back to that version, and then flash back to the current rom you are on now, or any other rom you prefer that is compatible with your phone. Simple. Good luck!
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] audit13:
You can't flash back to completely stock 4.1.1 if your phone has ever had stock 4.3 or higher. Downgrading from a 4.3 or newer bootloader could brick the phone.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] DelphinusMinor:
Oh right. I forgot about that. It slipped my mind because when I used this method to unlock my cell I was on 4.2.1. :eek:
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] audit13:
I found a Bell dealer with old stock and the phone had stock 4.1.2 which I promptly downgraded, unlocked, rooted, flashed CWM, and a custom ROM.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] feelmjawlk:
Is there any way to unlock sim if you're on 4.3? Got a Galaxy SIII from a friend but her operator needs 3 weeks (!) to send out instructions for unlocking the phone.

Reference: http://xdaforums.com/showthread.php?t=2601396

Thanks!