Database Users

[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

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

Need to unlock ATT GS4 for T-Mobile

Hi, I need to sim unlock my friend's GS4 to be used on T-Mobile, is it possible without a code on NC1?

bump

aidankiller4 said:
bump
Click to expand...
Click to collapse
Look at the possible unlock for mk2 thread in the general section, and read the OP and last few pages to see what others have done.
Sent from my SGH-I337 running GPE

Replacing My S4---ebay?

I got my ATT S4 wet and could not recover it so I am needing to get a used replacement on ebay. Will any "unlocked" S4 work on my ATT contract? My old S4 had MDB firmware when I purchased it so it was easy to use Custom ROMs and TWRP. With replacement phone I again want to use TWRP recovery and Flash ROMs. I keep seeing talk about how unlocked Verizon phone may or may not work with ATT and do not fully understand the differences in Carriers . Any info is appreciated.
Thanks

If it's sim unlocked it should work on at&t. But you'll probably not get a phone with mdb or mdl firmware and therefore will not be able to use twrp or cwm.
Sent from my Nexus 5 using XDA Free mobile app

jd1639 said:
If it's sim unlocked it should work on at&t. But you'll probably not get a phone with mdb or mdl firmware and therefore will not be able to use twrp or cwm.
Sent from my Nexus 5 using XDA Free mobile app
Click to expand...
Click to collapse
Thanks for reply. I know it going to about impossible to find MDB again. I have emailed each seller of a phone am looking at and no MDB or MDL yet. Hopefully I will find an XDA guy with old S4 at some point that has used Custom ROMs and still on MDB or MDL and he can ODIN back to old Stock.

Ron,
keep me in mind here or PM since mods may not let a buying thread go on long
I have an MDL S4 ATT 32gb, and obviously by my member info, rooted and with TWRP 2.5.0.2--the best recovery for us. Perfect condition and many xtras plus a 64gb Sammy sdcard.
I may, due to my son and his wife's pushing, get the iPhone 6 plus. Flashing is winding down for me and they want us all on the iPhone "ecosystem" (continuity). And time for a change.
Wasn't sure I was ready to part with the S4, too damn nice of a phone.
Since I am now subscribed to this thread I wil see your posts as long as thread is open. I need to do some quick decision making.
Ken

Use Swappa.com
Sent from my Galaxy S4 using Tapatalk