[Q] S4 MF3 Sim unlock?? - AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin

I've for a AT&T S4 I337 with the MF3 update. I have already managed to root it. Is there any way to unlock the sim?? I have searched. Tried to get to the service menu and it does't let me do anything. Can I flash another rom or do something so I can unlock it.

NOplaymaker said:
I've for a AT&T S4 I337 with the MF3 update. I have already managed to root it. Is there any way to unlock the sim?? I have searched. Tried to get to the service menu and it does't let me do anything. Can I flash another rom or do something so I can unlock it.
Click to expand...
Click to collapse
Seeing how you are on the MF3 currently there is no way to flash another rom or custom recovery, your best bet would be go through att to get the unlock code.

But it won't even let me get into the service menu. I tried the codes and process they say online and it does nothing. Can someone explain why it won't budge and how and when it will be fixed?
ronnie498 said:
Seeing how you are on the MF3 currently there is no way to flash another rom or custom recovery, your best bet would be go through att to get the unlock code.
Click to expand...
Click to collapse

The service menu unlock was disabled in MF3. You have to get an unlock code from your carrier or another service.
Sent from my SAMSUNG-SGH-I337 using xda app-developers app

DeadlySin9 said:
The service menu unlock was disabled in MF3. You have to get an unlock code from your carrier or another service.
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
Click to expand...
Click to collapse
Theres not even a place to enter an unlock code. I cut my Straight talk sim with the proper tool and inserted it and it didn't even recognize it. Still says "no sim inserted." Going to try to buy a ATT straight talk sim from the Straight talk website next.

Unlock Code AT&T, they have no idea
DeadlySin9 said:
The service menu unlock was disabled in MF3. You have to get an unlock code from your carrier or another service.
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
Click to expand...
Click to collapse
I ported my # over from AT&T today to Straight Talk. At first it didn't like the new sim card, but after my # was ported and a few reboots the message didn't come up anymore. I now have phone & data service running on it, even though I was still under contract for a previous device (S3). I called AT&T and after a lengthy call, they said I didn't need an unlock code if I was getting service OK from Straight Talk. My old APN info is still there for them along with the one I created for 'ST'. I have no way of deleting the old APN, and who knows where, or if I'll get updates from. My only other option was to get the Google Edition S4, but I payed full price for the one I got now. Hopefully the bootloader issue will get cracked before long and I can get this ATT crap off my phone for good.

Network lock
I want to share something, could get passed the first screens all the way down to the network lock menu, no sha off options.
Haven't seen any posts regarding this.
Pictures attached

NOplaymaker said:
I've for a AT&T S4 I337 with the MF3 update. I have already managed to root it. Is there any way to unlock the sim?? I have searched. Tried to get to the service menu and it does't let me do anything. Can I flash another rom or do something so I can unlock it.
Click to expand...
Click to collapse
have you tried chainfires region lock away at http://forum.xda-developers.com/show....php?t=2470551
it worked for my s4 running MF3

tal27416 said:
have you tried chainfires region lock away at http://forum.xda-developers.com/show....php?t=2470551
it worked for my s4 running MF3
Click to expand...
Click to collapse
i can confirm this works. I tried it on my s4 and my phone is now unlocked. thanks:victory:

tal27416 said:
have you tried chainfires region lock away at http://forum.xda-developers.com/show....php?t=2470551
it worked for my s4 running MF3
Click to expand...
Click to collapse
Worked like a charm on my At&t Galaxy S4 on MF3 firmware just saved me $30 for an unlock code off Ebay Link is dead though heres the link i used...http://forum.xda-developers.com/showthread.php?t=2470551

final unlock ! done for me
there is a video on youtube called .. " Galaxy s4 MF3 unlock. "
i do have i337 ..
in the video it misses
In "COMMON" screen, select [6] NV REBUILD
Now you are in the "NV REBUILD" screen, you should see the following text:
------------------------------
Golden-Backup exist
You can Restore Cal/NV
------------------------------
Now for the final step.
In "NV REBUILD" screen, select [4] Restore Back-up
Tested on: I337
finally, after doing 4 hours of hard research and almost brick my phone planning on using .pit for downgrade..

Does anyone know the default settings?
Sent from my SGH-I337 using XDA Premium 4 mobile app

malboro13 said:
there is a video on youtube called .. " Galaxy s4 MF3 unlock. "
i do have i337 ..
in the video it misses
In "COMMON" screen, select [6] NV REBUILD
Now you are in the "NV REBUILD" screen, you should see the following text:
------------------------------
Golden-Backup exist
You can Restore Cal/NV
------------------------------
Now for the final step.
In "NV REBUILD" screen, select [4] Restore Back-up
Tested on: I337
finally, after doing 4 hours of hard research and almost brick my phone planning on using .pit for downgrade..
Click to expand...
Click to collapse
Hey,
I did watch that video, but I am not sure how to get to that "Samsung Service Mode" Screen . Can you tell the steps please.
Thanks.

Ok, isnt that region lock thread just for Galaxy Note 3s? and on MF3, doesnt seem like the service menu will come up at all, so kinda curious too how people are making that work.

xuanphucn said:
i can confirm this works. I tried it on my s4 and my phone is now unlocked. thanks:victory:
Click to expand...
Click to collapse
lylon said:
Worked like a charm on my At&t Galaxy S4 on MF3 firmware just saved me $30 for an unlock code off Ebay Link is dead though heres the link i used...http://forum.xda-developers.com/showthread.php?t=2470551
Click to expand...
Click to collapse
Hey did you guys talking about region unlock or carrier unlock?
Can you please share steps you followed, it will be a great help.
Thanks.

It's been mentioned that region unlock has had a positive affect on the Sim unlock.
However Sim unlock and region unlock are totally different from one another.I used the free unlock method when I was MDL and only used the region unlock with MF3 .will I ever really know if the region unlock worked?probably never.
I am still Sim unlocked
Sent from my SPH-L720 using XDA Premium 4 mobile app

mild4u said:
Hey did you guys talking about region unlock or carrier unlock?
Can you please share steps you followed, it will be a great help.
Thanks.
Click to expand...
Click to collapse
root ur phone and download the region unlock app on google play and done :fingers-crossed:

Again, the region lock claims for note 3... so if people say it works on S4.. why isnt it listed on the app? Would love some confirmation.

lylon said:
Worked like a charm on my At&t Galaxy S4 on MF3 firmware just saved me $30 for an unlock code off Ebay Link is dead though heres the link i used...http://forum.xda-developers.com/showthread.php?t=2470551
Click to expand...
Click to collapse
:good::good::good: I tried this and working like a charm.. !!!! I tried Simple Mobile card...

Thanks xuanphucn....it work fine.
xuanphucn said:
root ur phone and download the region unlock app on google play and done :fingers-crossed:
Click to expand...
Click to collapse
Mysticalses,
I was scared at first but thought to give it a try...
- Rooted the phone using a video on youtube: Root Your Samsung Galaxy S4 [ by OfficialSoftModder]
- RegionLockAway
Mysticales said:
Again, the region lock claims for note 3... so if people say it works on S4.. why isnt it listed on the app? Would love some confirmation.
Click to expand...
Click to collapse
Ditto...checked with Simple Mobile card though not activated so wasn't able to test calls...but at least it didn't ask for a unlock code or anything and showed SimpleTalk voice mail notification....
mysocks said:
:good::good::good: I tried this and working like a charm.. !!!! I tried Simple Mobile card...
Click to expand...
Click to collapse

Related

Got stuck on SIM LOCK with the Leaked Samsung 4.1.2 XXLSJ Firmware? SOLVED

Hello there, if you are a total noob just like me, or you are simply looking for this and just flashed the recently leaked Samsung 4.1.2 XXLSJ Firmware and got stuck with that SIM UNLOCK code, the solution is just at hand and it is totally safe and free.
All you need is a WiFi connection and have a visit over the Play Store
Look for "Galaxy S2 SIM Unlock", which is a free app and download it
The job gets done just by taping over "SIM unlock code", it may take a few moments and you are done with the number.
Copy the number elsewhere and reboot your phone, once your asked about the number just type it and you are ready to go.
Remember you can only use this code once (per phone cycle) so if you miss typed it you are going to need to reboot again.
Enjoy your phone and allow me to give you an extra tip: NEVER FORMAT your Sd Card with this new firmware as some have reported that it resulted on BRICKING your lovely SGS2.
James.-
Enjoy your phone and allow me to give you an extra tip: NEVER FORMAT your Sd Card with this new firmware as some have reported that it resulted on BRICKING your lovely SGS2.
James.-
Click to expand...
Click to collapse
Where did you read these reports?
pilgrim011 said:
Where did you read these reports?
Click to expand...
Click to collapse
Right here:
http://forum.xda-developers.com/showthread.php?t=1997366
alfadown said:
Right here:
http://forum.xda-developers.com/showthread.php?t=1997366
Click to expand...
Click to collapse
Oh, that's just his assumption, not a fact. There is not a single report yet about brickbug on 4.1.2.
pilgrim011 said:
Oh, that's just his assumption, not a fact. There is not a single report yet about brickbug on 4.1.2.
Click to expand...
Click to collapse
Yes! You are right, but I just don't want to try it myself. :good:
"Galaxy S2 SIM Unlock" didn't work for me. I used a "GalaxSim Unlock", but this isn't a permanent unlock.
Does anyone knows how to permanently unlock my phone for free?
One could also restore their efs from a backup.
The efs method worked for me while the sim unlock app method didn't.
alfadown said:
Hello there, if you are a total noob just like me, or you are simply looking for this and just flashed the recently leaked Samsung 4.1.2 XXLSJ Firmware and got stuck with that SIM UNLOCK code, the solution is just at hand and it is totally safe and free.
All you need is a WiFi connection and have a visit over the Play Store
Look for "Galaxy S2 SIM Unlock", which is a free app and download it
The job gets done just by taping over "SIM unlock code", it may take a few moments and you are done with the number.
Copy the number elsewhere and reboot your phone, once your asked about the number just type it and you are ready to go.
Remember you can only use this code once (per phone cycle) so if you miss typed it you are going to need to reboot again.
.........................
Click to expand...
Click to collapse
I've tried it on few devices with different OS (GB, ICS, JB), it NEVER worked for me!! Take ages to finish and always getting message "Sorry no code for your device" !!!! Rubbish...
astronman said:
"Galaxy S2 SIM Unlock" didn't work for me. I used a "GalaxSim Unlock", but this isn't a permanent unlock.
Does anyone knows how to permanently unlock my phone for free?
Click to expand...
Click to collapse
I've tested all Free Sim Unlockers from Play store and all failed except this One.. It's NOT Free tho... (£1.60 for unlimited unlocking - good deal)
How you know is Not Permanent?? Looks solid to me
djembey said:
I've tried it on few devices with different OS (GB, ICS, JB), it NEVER worked for me!! Take ages to finish and always getting message "Sorry no code for your device" !!!! Rubbish...
I've tested all Free Sim Unlockers from Play store and all failed except this One.. It's NOT Free tho... (£1.60 for unlimited unlocking - good deal)
How you know is Not Permanent?? Looks solid to me
Click to expand...
Click to collapse
Reflash stock rom and you will see that sim lock is on, again.
i had same problem sim lock i just flashed gb on it then rooted it ,then unlocked with ...GalaxSim Unlock 1.02 installed XXLSJ......worked like a charm... stayed unlocked
astronman said:
Reflash stock rom and you will see that sim lock is on, again.
Click to expand...
Click to collapse
Than use GalaxSim to unlock it again... Once you paid for it you can use it as many time as you want..
Sent from my GT-I9100 using xda app-developers app
For me nothing work. The apps don't find the code. But i reverted to aokp and here can unlock until switch off or reboot. Before flashed the leak no problem ay all
Sent from my GT-I9100 using xda app-developers app
Hello there, I used the firmware found at this post http://forum.xda-developers.com/showthread.php?t=1996714
Later on I went to ODIN and flashed this: http://stockroms.net/file/GalaxyS2/GT-i9100/4.1.2leak/i9100XXLSJrooted.tar to get root.
After that I were able to get the code.
Hope this help guys! :good:
alfadown said:
Hello there, I used the firmware found at this post http://forum.xda-developers.com/showthread.php?t=1996714
Later on I went to ODIN and flashed this: http://stockroms.net/file/GalaxyS2/GT-i9100/4.1.2leak/i9100XXLSJrooted.tar to get root.
After that I were able to get the code.
Hope this help guys! :good:
Click to expand...
Click to collapse
What app did you use to unlock your galaxy s2 phone and is it free or not ?? Thx
hmida.souheil said:
What app did you use to unlock your galaxy s2 phone and is it free or not ?? Thx
Click to expand...
Click to collapse
Use galaxSim unlock from market. ..its free to see if sim can be unlocked...if can cost you about twofifty.
Sent from my GT-I9100 using xda premium
The *#7465625# code is not working with this ROM.
Can anyone else confirm and give a way to confirm unlock status?
Sent from my GT-i9100M w/XDA Premium
ROM Stock JB 4.1.2 XXLSJ
Kernel Philz 3.0.31
1. With a safe rom, Backup your /efs/ folder by copy command.
2.erase nv_data.bin nv_data.bin.md5 and nv_data.bin.bak .
3.reflash the new xxlsj.
4.paste the 3 files from backed up folder to /EFS/.
5.reboot... Done.
And if it fails?
how about if "Galaxy S2 SIM Unlock" fails?
cpl.Bower said:
how about if "Galaxy S2 SIM Unlock" fails?
Click to expand...
Click to collapse
Use galaxSim unlock it worked when the others wouldnt.
Sent from my GT-I9100 using xda premium
A note for everyone the Galxsim unlock app is using the free on xda, paid in store model. So just get it from the forums and it will unlock your phone for free.
http://forum.xda-developers.com/showthread.php?t=1846451

[Q] No unlock for at&t gs4?

My device:
At&t Galaxy S4 (US)
4.2.2 (Google Play Version)
SGH-i337
Baseband: XXXXXXXXMF3
From What I understand, it can't be unlocked for t-mobile and whatnot. I've been searching around today for a couple hours, and doesn't look like there is a working method anymore
When trying through *#0011#, pressing "1" doesn't bring up a second menu; the menu stays the same.
Unlock codes won't work because device is Region locked (I'm in the US)...
That is what I found while searching around today...
Any advice would help. I can't for the life of me find a thread that fits my description. They're all just general gs4 unlock guides from months ago...
Looking around I couldn't find someone actually post this, so I asked. Sorry if its a repeat?
So have you acquired the unlock code to know they don't work.
sent from a I337 MF3 S4
I found a guide to rooting MF3 Not sure if rooting it will help?:
http://forum.xda-developers.com/showthread.php?t=2387577
Will try to root it first....
Then see what changes in the menu...
Click Here To Win said:
I found a guide to rooting MF3 Not sure if rooting it will help?:
http://forum.xda-developers.com/showthread.php?t=2387577
Will try to root it first....
Then see what changes in the menu...
Click to expand...
Click to collapse
Rooting isn't going to make any difference, but give it a try if it makes you feel better.
If you have a ATT phone you want Sim unlocked than the code you get from ATT will work if you want to use it with
T-mobile. (Same US region)
There is an app on playstore that will region unlock the phone but it is not a Sim unlock app.
sent from a I337 MF3 S4
You mind letting me know what you did, so I can copy your steps?
I'd much rather do that than following the generic guides...
Click Here To Win said:
You mind letting me know what you did, so I can copy your steps?
I'd much rather do that than following the generic guides...
Click to expand...
Click to collapse
I did the menu unlock and it was successful for me when I was on MDL.
I'm MF3 now and because I did it before it is permanently Sim unlocked.
Region lock away v1.0 on playstore.if the playstore don't bring it up than Google search it.
sent from a I337 MF3 S4
Yeah, I found out about that one...
It's not a SIM unlock though... So there isn't a way for me to unlock it yet that I've found.
You are rather confusing to me cause the sim and region unlock are the only two things you can unlock on this phone.if you have been talking about unlocking the bootloader than your heading is correct.
" NO UNLOCK FOR S4 "
now even if your bootloader was unlocked it has nothing to do with your sim or region and the ability to use it on a network that's in the same region as your phone currently.
sent from a I337 MF3 S4
Please read forum rules before posting
Questions and Help issues go in Q&A and Help section
Thread moved
Thank you for your cooperation
Friendly Neighborhood Moderator
Sorry not trying to sound confusing.
I'm trying to unlock my mf3 Galaxy s4 for t-mobile. in the US. Don't need region unlock. (unless this makes it work on tmobile in the US?)
I've trying unlocking the phone through ATT customer service, but they can't/won't.
That's all I know so far...
U mentioned something about the region.if your phone is the i337 ATT branded/model phone keep calling ATT and lie to them that you need the unlock code for your phone cause you plan on going out of the country on the coolest vacation ever and it is cheaper for you to acquire a foreign sim card and you need the code for the sim to work.
sent from a I337 MF3 S4
I factory unlock phones as kind of a side job and all AT&T servers have changed their unlocking so it's extremely hard if not impossible to get the unlock through AT&T. You can still get a manufacturer unlock but it's pricey.
Ok I'm not understanding this... So if I get Region Unlock from the google play store will it make me be able to use any SIM card inside US?
And also where can I find a manufacture unlock?
And If all else fails is there alternate options?
Click Here To Win said:
Ok I'm not understanding this... So if I get Region Unlock from the google play store will it make me be able to use any SIM card inside US?
And also where can I find a manufacture unlock?
And If all else fails is there alternate options?
Click to expand...
Click to collapse
Its just a region unlock you still have to sim unlock it.
I understand now why its so hard for you to just call ATT for the unlock code cause its not your phone.there is no nifty little trick anymore . someone mentioned a way to mod the system to get the service menu back but it is work.GOOGLE/SEARCH
sent from a I337 MF3 S4
No, i tried calling att several times. They keep telling me I need to have it on contract for 6 months before I can have it unlocked. I dont have that time...
Every other way doesnt work for me...
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
Thanks that what was I was wondering.... theres got to be a work around for mf3 users....
Id much rather do it through att, but because of their new rules I cant.
Im fairly new to android, accustomed to the easy ios exploiting, so thats why I asked so many things.
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
Click Here To Win said:
Thanks that what was I was wondering.... theres got to be a work around for mf3 users....
Id much rather do it through att, but because of their new rules I cant.
Im fairly new to android, accustomed to the easy ios exploiting, so thats why I asked so many things.
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
Click to expand...
Click to collapse
I think if all else fails, you can just buy the unlock code.
I've been reading the unlock thread and it seems you can get "Unlock your Galaxy S4" by unlockunit from the play store to unlock it.
Haven't tried it personally as my phone is in the mail...but I'm hoping it is a non MF3 and easy to unlock phone.
A lot to hope for, I know
http://forum.xda-developers.com/showthread.php?t=2282683
Never mind guy, I got it working wihth unlockunit app.... finally gave in and paid $25 for it......
Good to hear.
Sent from my SAMSUNG-SGH-I337 using xda app-developers app

[Q] MJ9 issue, possible to downgrade from 4.3? need to unlock

Hi i have ATT GALAXY S4 with baseband MJ9, am wondering if i can downgrade baseband or something to be able to sim unlock the phone
or if there is a cure for this, am kind of a noob, plus if anyone has ideas then should help me figure this out, at&t is not able to unlock this phone and i'll have to get ahold of the owner tomorrow, but am a little impatient and i also like to learn
i tried region lock away but it still wont unlock
hidden menus dont take me to where the instructions say
i've had an s4 with mf3 and i unlocked it just fine and easy
please help a noob. thanks
You can't downgrade, at least on the att gs4
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
troolplay said:
Hi i have ATT GALAXY S4 with baseband MJ9, am wondering if i can downgrade baseband or something to be able to sim unlock the phone
or if there is a cure for this, am kind of a noob, plus if anyone has ideas then should help me figure this out, at&t is not able to unlock this phone and i'll have to get ahold of the owner tomorrow, but am a little impatient and i also like to learn
i tried region lock away but it still wont unlock
hidden menus dont take me to where the instructions say
i've had an s4 with mf3 and i unlocked it just fine and easy
please help a noob. thanks
Click to expand...
Click to collapse
Here is your choice, but if you unlock sim card already it will never be lock again.
alfmetal said:
You can't downgrade, at least on the att gs4
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
Click to expand...
Click to collapse
well can i atleast unlock my phone with some hidden menus?
or maybe a reasonable price unlocking services?
troolplay said:
well can i atleast unlock my phone with some hidden menus?
or maybe a reasonable price unlocking services?
Click to expand...
Click to collapse
You can try with hidden menu or use this guys : CELLUNLOCKER

SIM Unlock, blocked???

has anyone tried to sim unlock their phone AFTER the update to 4.3???
I'm asking because I have a BELL i337m, upgraded to 4.3 and decided to unlock my phone after.
I tried 3 different sites to unlock my phone, they all gave me the same code and nothing happens
I tried downgrading to 4.2.2 but this wasn't very successful, its stuck in the boot animation screen
any ideas?
kyrotech said:
has anyone tried to sim unlock their phone AFTER the update to 4.3???
I'm asking because I have a BELL i337m, upgraded to 4.3 and decided to unlock my phone after.
I tried 3 different sites to unlock my phone, they all gave me the same code and nothing happens
I tried downgrading to 4.2.2 but this wasn't very successful, its stuck in the boot animation screen
any ideas?
Click to expand...
Click to collapse
I know it's not helping, but I received my Bell phone yesterday and it was shipped with baseband I337MVLUAMG1. I tried the "free sim unlock method" found on this forum, but it doesn't work. I cannot access service mode (*#0011#, Menu button, Back, Menu button, KEY INPUT, 1, OK).
Still searching for a stock rom that will have the service mode enabled...
Dont waste your time looking for a free unlocking service..Pay 29.99 USD and have it umlocked from cellunlocker..you will be happier in the long run as i am..thank me for not wasting time unlocking for free..
Sent from my SAMSUNG-SGH-I337 using Tapatalk
kyrotech said:
has anyone tried to sim unlock their phone AFTER the update to 4.3???
I'm asking because I have a BELL i337m, upgraded to 4.3 and decided to unlock my phone after.
I tried 3 different sites to unlock my phone, they all gave me the same code and nothing happens
I tried downgrading to 4.2.2 but this wasn't very successful, its stuck in the boot animation screen
any ideas?
Click to expand...
Click to collapse
I am having pretty much the same problems on my Telus/Koodo i337m. I recently updated to the most recent firmware (4.3) on the advise of cellunlocker because the code I was given was not working. None of the codes work and I can't even access the screens to do it manually. I have recently rooted it, props to Chainfire, but have no luck with most of the service screens. I'm still working with Cellunlocker to resolve the issue. I had access to all the service screens/menus on MDJ but not MG1 or MK6. Wondering if maybe the update missed some files or if the update locked some features. not sure if this is helpful but I'm happy to share whatever information I have to help others with the same problems.
Same here,
Bell with MK6. 3 sites provided same unlock codes. Nothing works, service menus different, etc.
Can't downgrade to 4.2.2 since image found crashed (bricks the phone). Image I found was at Sam Mobile
Apparently BELL will unlock it for 50$ but require original sales receipt, which I don't have (purchased phone on ebay)
Just paid BELL $57 to unlock, and their code is the same as all the sites... NOT WORKING !!!
I wanted them to give me the 1st 2 digits and last 2 digits so I can refuse before payment. But they insisted on pay first - code after - code by email. Luckly I had an employee of Bell at Bell Boutique confirm code not working.
I'm now on hold (1hr) to try see if they have another code?
kyrotech said:
has anyone tried to sim unlock their phone AFTER the update to 4.3???
I'm asking because I have a BELL i337m, upgraded to 4.3 and decided to unlock my phone after.
I tried 3 different sites to unlock my phone, they all gave me the same code and nothing happens
I tried downgrading to 4.2.2 but this wasn't very successful, its stuck in the boot animation screen
any ideas?
Click to expand...
Click to collapse
r1tesh said:
Dont waste your time looking for a free unlocking service..Pay 29.99 USD and have it umlocked from cellunlocker..you will be happier in the long run as i am..thank me for not wasting time unlocking for free..
Sent from my SAMSUNG-SGH-I337 using Tapatalk
Click to expand...
Click to collapse
I think you're right... I ended up buying a code from unlocksamsungonline.com for 29.71$ CAD with a coupon. Received the codes in 55 minutes. Hope it works...
My provider Bell Canada, gave me the same codes as all these sites, and they don't work on 4.3. Looks like Samsung has a major BUG in 4.3 in regards to unlock. Bell says call Samsung ! Go figure!
Problem is that will take a while to fix, aka get it out to consumers....
Chatted with Samsung, they say call BELL !
WoW !!!
merledm said:
I am having pretty much the same problems on my Telus/Koodo i337m. I recently updated to the most recent firmware (4.3) on the advise of cellunlocker because the code I was given was not working. None of the codes work and I can't even access the screens to do it manually. I have recently rooted it, props to Chainfire, but have no luck with most of the service screens. I'm still working with Cellunlocker to resolve the issue. I had access to all the service screens/menus on MDJ but not MG1 or MK6. Wondering if maybe the update missed some files or if the update locked some features. not sure if this is helpful but I'm happy to share whatever information I have to help others with the same problems.
Click to expand...
Click to collapse
kyrotech said:
has anyone tried to sim unlock their phone AFTER the update to 4.3???
I'm asking because I have a BELL i337m, upgraded to 4.3 and decided to unlock my phone after.
I tried 3 different sites to unlock my phone, they all gave me the same code and nothing happens
I tried downgrading to 4.2.2 but this wasn't very successful, its stuck in the boot animation screen
any ideas?
Click to expand...
Click to collapse
Are you sure your phone is locked to bell?
Did you try putting different simcard other then Bell? Did your phone ask for unlock code when you put the other carrier's sim?
r1tesh said:
Dont waste your time looking for a free unlocking service..Pay 29.99 USD and have it umlocked from cellunlocker..you will be happier in the long run as i am..thank me for not wasting time unlocking for free..
Sent from my SAMSUNG-SGH-I337 using Tapatalk
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Click to collapse
this still doesn't work.
Paid and tried from 3 different sites, they all gave me the same exact code
I think that the update has locked the bootloader and anything else.
I was reading somewhere that Samsung may be blocking the sim unlock and forcing people to pay roaming fees
Well all I can say is that this has been a huge step backwards for Samsung (from my point of view) locking/blocking features, really is a major turn off for me.
I think its time to look at other options until someone from XDA figures this one out.
Oncet said:
Are you sure your phone is locked to bell?
Did you try putting different simcard other then Bell? Did your phone ask for unlock code when you put the other carrier's sim?
Click to expand...
Click to collapse
100% locked to Bell
I have the original sim from Bell and is working fine
Put a Fido sim and asks for the unlock code, when I enter it, it says unsuccessful
everything is correct, IMEI has been verified many times and the codes also
Samsung is blocking something here with the latest 4.3 MK6 update
dcoulombe said:
I think you're right... I ended up buying a code from unlocksamsungonline.com for 29.71$ CAD with a coupon. Received the codes in 55 minutes. Hope it works...
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Click to collapse
did you unlock your phone with the code?
kyrotech said:
did you unlock your phone with the code?
Click to expand...
Click to collapse
Well I tried 2 times the unlock code and it didn't work. I'm doing a backup right now and I will go back to stock and try again...
dcoulombe said:
Well I tried 2 times the unlock code and it didn't work. I'm doing a backup right now and I will go back to stock and try again...
Click to expand...
Click to collapse
please let me know
BTW, I just got off the phone with Samsung, they say that I have to take this issue up with my service provider.
they are not able to help me and answer why my unlock code isn't working.
he did admit however, that there have been multiple calls about the 4.3 upgrade and that Samsung is going to release an update very shortly
let's just hope that this will rectify the issues that we have been having
kyrotech said:
please let me know
BTW, I just got off the phone with Samsung, they say that I have to take this issue up with my service provider.
they are not able to help me and answer why my unlock code isn't working.
he did admit however, that there have been multiple calls about the 4.3 upgrade and that Samsung is going to release an update very shortly
let's just hope that this will rectify the issues that we have been having
Click to expand...
Click to collapse
I restored my stock rom (Bell I337MVLUAMG1) and was able to unlock successfully my phone. I used a Telus SIM and was able to receive a phone call. BTW, I never updated my phone to the stock 4.3 update.
So it seems that you must be stock for unlock codes to work. For the record, I was using KANGAKAT KOT49H 6.0 when the code was not working...
dcoulombe said:
I restored my stock rom (Bell I337MVLUAMG1) and was able to unlock successfully my phone. I used a Telus SIM and was able to receive a phone call. BTW, I never updated my phone to the stock 4.3 update.
So it seems that you must be stock for unlock codes to work. For the record, I was using KANGAKAT KOT49H 6.0 when the code was not working...
Click to expand...
Click to collapse
I unlocked mine on 4.2.2 AMG1 flawlessly.I never updated to 4.3 and looking at the threads regarding KNOX and locked boot loader, probably I never will.
I am wondering if you can flash the MG1 radio from 4.2.2 and try unlocking the phone.If successful install the radio from 4.3 again.
I am not sure weather we are able to flash old radio on 4.3 though.

galaxy s4 sgh I337 at&t unlock

Hey there, I have a samsung galaxy s4 sgh-i337 locked to at&t.
I bought an unlocking code from an ebay user.
it doesn't unlock my phone, it writes: "unlock request unsuccesful". I tried to use the defreeze code and then again the network code, still nothing.
I was referred to a guide that suppose to show me the "service mode menu", by entering *#0011# . so service mode goes on when i put that number in the dial pad, but then I suppose to do 'menu key'->'back'->'menu key'->'key input'->'1', but after I do that nothing happens, the service mode menu with all the options doesn't pop up, it stays in the same page of the service mode. somewhere down on the ServiceMode page it writes "Service:Limited". what should I do?
Talk with an at&t rep or chat online and indicate that you will be traveling and want to use this phone there and they'll give u a unlock code..
Sent from my SAMSUNG-SGH-I337 using xda premium
sameer1807 said:
Talk with an at&t rep or chat online and indicate that you will be traveling and want to use this phone there and they'll give u a unlock code..
Sent from my SAMSUNG-SGH-I337 using xda premium
Click to expand...
Click to collapse
i'm pretty sure that I already have a code, and in some reason it still doesn't work.. I'll try it anyway. write now they're on holiday.
But still, does anyone here know about a way to make that cranky menu show up?
ncamaa said:
i'm pretty sure that I already have a code, and in some reason it still doesn't work.. I'll try it anyway. write now they're on holiday.
But still, does anyone here know about a way to make that cranky menu show up?
Click to expand...
Click to collapse
Try *#197328640#
aLMosT!
khha4113 said:
Try *#197328640#
Click to expand...
Click to collapse
it took me directly to the DEBUG SCREEN menu, but I have only 5 options instead of 6. the important option is missing. option number 6, "phone control". is there any direct way to get to that menu? or to make it show the option?
Someone... Help.. please
no Mega genius here that can solve my problem?
same boat here man, this is a new problem since not everyone has 4.3 yet. Att won't even give me the unlock code since they changed eligibility few months ago to "only off contract or fulfilled contract phones." I've read one person saying the eBay unlock code didnt work on 4.3 either. And the only success i've heard is another post here on XDA saying they unlocked 4.3 using the regionlockaway app, but they apparently Odin flashed 4.2.2, did the regionlockaway while the phone had no sound/wifi etc., then Odin flashed 4.3(locked again), then flashed 4.2.2 odin again, regionlockaway'ed, then odin'ed 4.3 again and the unlock stayed. That sounds ridiculous and is not an exact science.
So i'm done with At&t's phone slavery and switching to T-mobile on a nexus till the Xperia Z1 is out. I thought this was the future.
wtfmateim65 said:
same boat here man, this is a new problem since not everyone has 4.3 yet. Att won't even give me the unlock code since they changed eligibility few months ago to "only off contract or fulfilled contract phones." I've read one person saying the eBay unlock code didnt work on 4.3 either. And the only success i've heard is another post here on XDA saying they unlocked 4.3 using the regionlockaway app, but they apparently Odin flashed 4.2.2, did the regionlockaway while the phone had no sound/wifi etc., then Odin flashed 4.3(locked again), then flashed 4.2.2 odin again, regionlockaway'ed, then odin'ed 4.3 again and the unlock stayed. That sounds ridiculous and is not an exact science.
So i'm done with At&t's phone slavery and switching to T-mobile on a nexus till the Xperia Z1 is out. I thought this was the future.
Click to expand...
Click to collapse
so what you're saying is that there's no future for these phones?
ncamaa said:
so what you're saying is that there's no future for these phones?
Click to expand...
Click to collapse
Take your phone to one of the shops which do unlocking using a box. It is possible to do it.
tronac said:
unlocking using a box
Click to expand...
Click to collapse
can you explain a little bit please? I am not aware of that method
how much do you think they'll take?
If you have another $20.50 go to Myhoian's website it's unlockcode247.com it'll take about a full day or over 12 hours usually but not longer than that he's never failed to unlock any of my phones.
I used region unlock. Unlocked my phone, put in a T-Mobile sim and it didn't asked for a code. Bam unlocked.
Sent from my SGH-I337 using Tapatalk
toxicpaulution said:
I used region unlock. Unlocked my phone, put in a T-Mobile sim and it didn't asked for a code. Bam unlocked.
Sent from my SGH-I337 using Tapatalk
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Click to collapse
guys please explain, i'm a noob. what's region unlock? by the way, my phone is a GSM phone.
also, what's unlocking using a box?
and about that unlockcode247 - can they help me if I already got a code from another source?
I am not from the US and I want to use my phone outside of the USA (the phone was bought in the USA and is AT&T locked).
toxicpaulution said:
I used region unlock. Unlocked my phone, put in a T-Mobile sim and it didn't asked for a code. Bam unlocked.
Sent from my SGH-I337 using Tapatalk
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Click to collapse
Are you on MK2?
52me52 said:
Are you on MK2?
Click to expand...
Click to collapse
I don't really know what do you mean by MK2, but if you meaning my baseband version its MF3 (yes, i know it's bad)
unlock att on mk2
I am currently running MK2 and I am having the same problem as the other guy. I am sure that is what he is on as well. Any ideas on how to get this unlocked?
gsxrchick said:
I am currently running MK2 and I am having the same problem as the other guy. I am sure that is what he is on as well. Any ideas on how to get this unlocked?
Click to expand...
Click to collapse
I used Cellunlocker.net and it was done in 24hrs. It did cost $29.99. Since I was on MK2 the only way to get it unlocked for free was through my carrier and they would not unlock.
LVGN said:
I used Cellunlocker.net and it was done in 24hrs. It did cost $29.99. Since I was on MK2 the only way to get it unlocked for free was through my carrier and they would not unlock.
Click to expand...
Click to collapse
My carrier said I was qualified to do the unlock. How are these services? Paying that much money on a limb sounds sketchy and most endorsers seem to be part of the sketchiness. Anyone else have experience using the only sites?
Jeez...
http://forum.xda-developers.com/showthread.php?t=2597973
I unlocked mine using method 2. You will not have sound until you flash modem back. At least I didn't.
I337 stock, unlocked, rooted

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