[Q] How Do I SIM unlock? - AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin

I have Galaxy S4 SGH-I337M (Fido)
Andriod Version : 4.2.2
Baseband : I337MVLUAMG1
Build : JDQ39.I337MVLUAMG1
How do I unlock the sim? I would like to use Bell sim later on.....
please don't bring up the idea of buying unlock code....

Buy yourself an unlock code and save a lot of headache. Otherwises there's something I think they call The Google, our something like that. I hear you can find all sorts of stuff with it. I'd probably try something like "sim unlock s4 xda"

We have Canadian i377m.
WE ARE FREE TO DO WHAT EVER WE WANT WITH OUR PHONES. It's like having a Google edition
And a simple yes. YOU Can Downgrade To What is the oldest firmware, so you can free unlock
Sent from my SGH-M919 ( its a i337m)using xda app-developers app

Instructions should be free once an unlock code is purchased!
Anyway, the process is pretty simple.
Get an unlock code and then turn the phone on with a non-accepted SIM card. If the phone is locked, it'll then request the unlock code from there. If any company charges for those instructions, they're ripping people off.

crzygrmn said:
We have Canadian i377m.
WE ARE FREE TO DO WHAT EVER WE WANT WITH OUR PHONES. It's like having a Google edition
And a simple yes. YOU Can Downgrade To What is the oldest firmware, so you can free unlock
Sent from my SGH-M919 ( its a i337m)using xda app-developers app
Click to expand...
Click to collapse
i downgraded to MDJ & "UMTS" is not there, theres no option to 'phone control' 'network lock'.....
NE suggestions?
tia

crappleton said:
i downgraded to MDJ & "UMTS" is not there, theres no option to 'phone control' 'network lock'.....
NE suggestions?
tia
Click to expand...
Click to collapse
Buy an unlock code. I've tried the free method and it FUBARed my phone. Unlock codes wouldn't work even after trying to undo the free unlock. The only thing that was able to unlock my phone was a paid USB unlock method.
$15 is not that expensive compared to network bricking your S4 with an unreliable free method.

Related

Is it really that easy to unlock the vibrant?

I was told that if i root the phone and then install busybox and Galaxy_S App that my phone would be unlocked? would this work for att and when i go to brazil?
For a while there was galaxy unlock app that worked for me and others (and not for some). It only required root to use and it would spit out your unlock code.
Sent from my SGH-T959 using XDA App
I've used that app on a friends phone who went out of the country. It couldn't find the unlock code, but I used the second option and it patched a folder. It worked great. Unlocked in seconds. VERY EASY.
Sent from my SGH-T959 using XDA Premium App
Just call T-Mobile and ask for a code?
So what's the way to unlock it? Thanks!
bongholio said:
So what's the way to unlock it? Thanks!
Click to expand...
Click to collapse
You get an unlock code (from t-mobile or hacked) put a foreign sim card (at&t works) reboot phone. It'll ask for code. You put the code in and it's unlocked.
What is the way hacked? The phone has no service atm
yes it is,just follow the instructions carefully
No you need to unlock it ,If you go Brazil or other country means you need to unlock your samsung Vibrant Phone,After unlock it use with any GSM Network Sim card.I haven't used that Apps Unlocking,You can better get the unlock code from the site
Theunlockarena.com/samsung/rs13wp8/ and unlock SAMSUNG VIBRANT.
Get SGS Unlock from the Market. The free one might work (for me it didn't), but the one that is not free got the job done.

[Q] S4 MF3 Sim unlock??

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

[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

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
Click to expand...
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
Click to expand...
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

Questions About Bootloader, etc.

I just got my U.S. Cellular s5 (G900R4) a couple days ago on Craigslist for $175 and I've been enjoying it thus far. I rooted it with towelroot just fine, but I'm a bit confused about the state of my bootloader. Is it already unlocked, or do I need to run some program to unlock it? I searched on Google and xda for a while and found nothing about this. I guess the U.S. Cellular model just isn't very popular. I just want to be sure so I can safely flash TWRP and flash some roms without ending up with a borked phone. TouchWiz is so slow compared to my Nexus 5 :/
Sent from my SM-G900R4 using XDA Free mobile app
happyjack96 said:
I'm a bit confused about the state of my bootloader. Is it already unlocked
Click to expand...
Click to collapse
We don't hear a lot about you USC guys. Given that all of the USC Motorolas, Sony, Samsung, et cetera that I have seen in the past have had locked bootloaders.. I'd bet that yours is too. And I'm confident that a forum search would confirm whether USC continues to lock bootloaders.
I don't have a 900R4 to test, but this dialer code may work -
Dial *#*#7378423#*#*
Then choose Service Info > Configuration
If it says:
Bootloader unlock allowed: Yes <---- this means that your bootloader is locked
Bootloader unlocked: Yes <---- this means that your bootloader is unlocked
I rather doubt that you will find any program to unlock the 900R4 bootloader anytime soon. But you can probably follow the Verizon tutorial for using Safestrap to virtual instance of a custom ROM or TWRP.
.
My phone isn't active on USC yet, so I can't dial anything. I'm just going to assume that I am locked. Safestrap seems like my best option. Thanks!
Sent from my SM-G900R4 using XDA Free mobile app
happyjack96 said:
My phone isn't active on USC yet, so I can't dial anything. I'm just going to assume that I am locked. Safestrap seems like my best option. Thanks!
Sent from my SM-G900R4 using XDA Free mobile app
Click to expand...
Click to collapse
Doesn't have to be activated to use the dial code, just open up the dialer and enter the code listed. Good luck.

Categories

Resources