yashsingh1/xdaforums huggingface dataset:
[AT&T Samsung Galaxy S 4 General] simplywinter:
I did this unlock and it seems to work, I can make phone calls with a different carrier sim, but I cannot get the data to connect. I have been searching xda and google for months trying to get this to work. I have a Canadian Bell mobilty i337m. Stock rom (mdj) and its rooted. I have tried factory reset several times but it doesnt fix it. I also tried flashing back to stock with odin. Does anyone have any other ideas?

When I try a telus sim, it give me voice service only and in the about > status menu the mobile network state either says disconnected or connecting. I have the data toggle on also.
[AT&T Samsung Galaxy S 4 General] doukj:
Do I need to have a SIM card in my phone to do this

Hi,

I have an AT&T Galaxy S4

I am trying this with no SIM card in the phone.

I could reachStep 3: Press Menu one more time and tap back again. This will pull up the Main Menu for ServiceMode.

But the phone never goes into [1] UMTS."

The phone will go to ServiceMode, but not to [1]UMTS. How to I get to [1]UMTS

Thank you for your help
[AT&T Samsung Galaxy S 4 General] MRCTX32:
cant access service mode, make calls, etc.

need help!

Purchased GS4 from ebay, its AT&T branded, I purchased an unlock code and input it into the phone it accepted the code but now I have signal and everthing is working but I cant make calls "emergency calls only" keeps showing on screen, tried to access service mode but when I dial #0011# as before it just says "emergency calls only" can anyone help the sim works fine in my other phone which is a LG Motion the network I am tring to use is T-mobile I am stumped Help Please!
[AT&T Samsung Galaxy S 4 General] Masaker514:
Anyone here from Montreal I'm willing to unlock your phone for free. No code just common knowledge If i mess up your phone I'll buy you a new one. Montreal people only.
[AT&T Samsung Galaxy S 4 General] danial.aw:
anybody know how to unlock the Bell i337M... I am running MG1...

wondering if people have had success unlocking it by downgrading to the older version?

the unlock codes are so expensive its horrible :S... or if anyone knows of a cheap unlock service?
[AT&T Samsung Galaxy S 4 General] Masaker514:
Inbox me. I will give you instructions to unlock.
[AT&T Samsung Galaxy S 4 General] danial.aw:
Hey guys for people who cannot seem to unlock using this method (im assuming all canadian with mg1) ... best and easy solution

download and use Region Lock away from this thread:

http://xdaforums.com/showthread.php?t=2470551

do donate to the developer... even though this app is not meant to sim unlock... it does :D ... !
[AT&T Samsung Galaxy S 4 General] REEFERKIEF:
Does this unlock persist after updating to 4.3 i.e. MJ6 leaked rom?

So i have used this method to unlock my phone, it worked flawlessly. But with the 4.3 update that should be coming tomorrow, has anyone updated to that MJ6 leaked rom after unlocking with this method, is your phone still unlocked?
[AT&T Samsung Galaxy S 4 General] lparedesl:
Cannot get it to work. I press Menu button, tap on Back, Menu button again, tap on Key Input, type 1, press OK, Menu button, tap Back and nothing happens. If I dial *#9090# When I Key Input 1 and press OK the phone reboots
[AT&T Samsung Galaxy S 4 General] jd1639:
If you're on mf3 firmware it isn't going to work.
[AT&T Samsung Galaxy S 4 General] n3llyfl0w:
OK i did *#0011# it works ,then menu back ,it feels like it stays the same ,then menu key input and type 1 then ok and nothing ,anybody help asap?
[AT&T Samsung Galaxy S 4 General] purplekush604:
Hey guys need help asap, leaving to goto South America in a couple of week. I have a Canadian Rogers i337m galaxy s4. I need to unlock it, is it even possible? its been rooted

thanks
[AT&T Samsung Galaxy S 4 General] IceTwig:
If you read this thread, you will find answers, rest assured.
[AT&T Samsung Galaxy S 4 General] dexywexy:
I know this might be a bit late... but I used this method (1337 on AT&T, 4.2.2, MDB) and just got back from Asia.

I used SIM cards in Hong Kong, Thailand, and China, and they all worked with no problem. I had cell reception and data with no issues, didn't even have to modify any APN settings.
[AT&T Samsung Galaxy S 4 General] v941726:
I get "mobile network not available" when I try step one. Can't seem to enter any codes without getting that message

Anyone know why this happens?
[AT&T Samsung Galaxy S 4 General] MajicDroidPirate:
This didnt actully work for me

When I pressed 1 on keyinput I stayed on the screen, But after searching forever I found a way to unlock it and made a post I know for a fact works, tested myself, I just posted it this is the link

http://xdaforums.com/showthread.php?p=48174440#post48174440
[AT&T Samsung Galaxy S 4 General] italbomber:
Ok I am new to this area of phones. .. but I got my hands on an at&t s4 brand new amd was wondering about using this with verizon? Is that something that Is possible and which is the most accurate way to unlock it? Thank you in advance.
[AT&T Samsung Galaxy S 4 General] MrJimmyPenguin:
doesnt work

does not work on canada one
[AT&T Samsung Galaxy S 4 General] michael45:
Debug screen

Does not even have (8) Phone Control in the menu in DEBUG SCREEN

has [6]WB-AMR Status and [7]WB-AMR SETTINGS how do you get

to Phone Control?
[AT&T Samsung Galaxy S 4 General] viper98:
I can't get it to go past the first menu that comes up

I don't know if it matters but my baseband is i337vlluemk6

I've tried installing various roms to with different versions of android and it didn't work in any
[AT&T Samsung Galaxy S 4 General] J3COMPUTERSERVICES:
Same here....
[AT&T Samsung Galaxy S 4 General] blurbzilla:
Doesn't work on Stock ATT MK2 :(
[AT&T Samsung Galaxy S 4 General] joogle:
so i bought an AT&T S4 brand new but need help in getting it unlocked. My sis-in-law has AT&T but the website won't take the submission from what i read it's because its a new line that was upgraded.

any suggestions on reliable but cheap unlock service places? thanks -

i may try this method but am just concerned, plus not sure if it'll work if the firmware is upgraded.

i really want to use it on tmobile

thanks!
[AT&T Samsung Galaxy S 4 General] v941726:
It can be done. I just went through this. Got my droids unlocked. Now trying to get an iPhone unlocked. For the droids, you have to go back to the 4.2.2 stock firmware. Trust me, I tried to get around it. I would have saved myself many hours and expense if I just flashed stock 4.2.2 in the first place. Allot of effort but it didn't have to be. Now I'm on tmobile and all is good

SGS4

---------- Post added at 04:20 PM ---------- Previous post was at 04:18 PM ----------

Flash their stock firmware first. I'm sure you can find it here on xda. Get their latest. Not sure what it is. Att to tmobile here. But it can be done

SGS4
[AT&T Samsung Galaxy S 4 General] erickit:
Under the newest firmware (MF3) this does not work.

I am using a Vodafone Italian Sim in my MF3 S4 now using this method:

http://xdaforums.com/showthread.php?t=2514607

It's not an unlock, it's deletes the region locks. But it has multiple success stories.
[AT&T Samsung Galaxy S 4 General] r1tesh:
This is not tje newest firmware...get your facts straight..MK3 firmware is newest..YAWN!!!!

---------- Post added at 05:14 PM ---------- Previous post was at 05:14 PM ----------

I meant MK2 ****
[AT&T Samsung Galaxy S 4 General] force70:
Foot in mouth much lol. YAWN!!

Sent from my G2,Note 3 or S4
[AT&T Samsung Galaxy S 4 General] mexicaninja:
This method worked for me. Running darthstalker s4 which is based on mk2.
[AT&T Samsung Galaxy S 4 General] DVJr84:
Any updates or confirmation about this working on the latest mk2 build?
[AT&T Samsung Galaxy S 4 General] viper98:
flashed the stock rom

doing the same thing

current baseband is now i337mvluamdj
[AT&T Samsung Galaxy S 4 General] Kage Crusnik:
So as I understand it then there is no way to unlock it without flashing the ROM once you have the MK2 update then?
[AT&T Samsung Galaxy S 4 General] knowcontrol:
.nvm.
[AT&T Samsung Galaxy S 4 General] viper98:
t I now have a fully functioning unlocked s4 unlocked with a locked bootloader that is again able to receive OTA updates sine it sees it as samsung official

I used the regionlock away that was posted earlier

it in it's self didn't work

so I flashed 4.2.2 stock thru odin

this caused meto lose all sound and wifi on my device

flashed darkstalker or w/e it's called rom and this brought back wifi but no sound

used regionlock away and it was successfully able to work run and unlocked the phone

flashed stock 4.3 thru odin and my sim was again locked

reflashed 4.2.2 and much to my surprise my sim lock was gone

however I still had no sound and I couldn't make calls as it would lock the phone up if I dialed out

flashed 4.3 again and voila.

everythign is working and it's still unlocked this time

and even better my phone is seen as unmodified so I can get OTA updates and I don't get that annoying message pop up in the top corner when I boot lol

I think I'm gonna just leave it stock rather than test my luck putting another rom on

but if you're having trouble getting this to work and are on 4.3 already like I was I'd try going back to 4.2.2, run regionlock away and see if it unlocks it

then flash 4.3 back thru odin and see if it works like it did for me
[AT&T Samsung Galaxy S 4 General] ohap:
how do you odin back to 4.2.2 if your on 4.3 mk2 wount odin fail and you be stuck in download mode ? what ver of 4.2.2 do you use ? mdl mdb mf3? and then where did you find odin 4.3 mk2 for att i377 ? im realy wanting to sim unlock my att s4 on mk2 please lmk and give me links thanks
[AT&T Samsung Galaxy S 4 General] skaterkid4:
So I'm using an att sgh-i337 on 4.3 and wanted to try this but am kinda scared ....does it ruin the phone anyone know ? Or what happens ?
[AT&T Samsung Galaxy S 4 General] scott14719:
Read the thread.
[AT&T Samsung Galaxy S 4 General] jjv1950:
Canno unlock ATT S4 SGH-I337

I tried all the codes and cannot get to the service menu. I am 7.8 on the techie scale from 1 to 10 so I do know what to do. The phone was new from Samsung with 4.3 on it. Kernal version 3.4.0-1921628 #1; BUILD number is JSS15J.I337UCUEMK2

HELP!
[AT&T Samsung Galaxy S 4 General] BehrendsTech:
Worked on my MDL version.

Read through the thread you will see some people have different menus, codes or are using the wrong back button.
[AT&T Samsung Galaxy S 4 General] bvzxa3:
The codes will not work on MK2. Tried them on an S3 and they worked. I believe the new 4.3 build on MF3 and above codes won't access what you need to unlock.
[AT&T Samsung Galaxy S 4 General] darthmalus:
8457
[AT&T Samsung Galaxy S 4 General] blurbzilla:
I have the same phone, did you find a method that does work?
[AT&T Samsung Galaxy S 4 General] bvzxa3:
If you're on the latest 4.3 firmware running MK2 modem I have a solution for you here if you want to unlock your S4:

http://xdaforums.com/showthread.php?t=2595457
[AT&T Samsung Galaxy S 4 General] X_DroiD_X:
whats up sushi the phone doesnt go in service menu main screen it stays at the 1st page opened when you type *#0011# i cant seem to enter main service menu to choose the UMS etc any ideas?
[AT&T Samsung Galaxy S 4 General] mcarbaja:
Are the menu options only visible when you insert the other carriers SIM? I've been trying it with my Tmobile phone on my current Tmobile sim but can't get all the options. I'm trying to unlock an AT&T S4
[AT&T Samsung Galaxy S 4 General] Jason761:
I can't enter the unlock code in my s4. I used the regionlock away method
[AT&T Samsung Galaxy S 4 General] jd1639:
I believe you have to be on mdb or mdl firmware
[AT&T Samsung Galaxy S 4 General] Jason761:
I have the Canadian S4 and im trying to get rid of the free method cause it didnt work. I set the PERSO SHA256 to On but i don't see the unlock code screen.
[AT&T Samsung Galaxy S 4 General] akakig:
Thank you,this was fun to play.
[AT&T Samsung Galaxy S 4 General] bvzxa3:
Again let me clarify:

Samsung service codes

will not

grant access to the UMTS menu on

MF3/MJ6/MJ9/MK2 firmware/modem

So this will only work for the T-Mobile S4 and any firmware/modem lower than MF3 on AT&T

AT&T has put out a security patch to lock access form the UMTS menu because they are stingy and losing business.

Go here because I made a workaround to gain unlock for free:

http://xdaforums.com/showthread.php?t=2595457

I am not hijacking the thread but try all you want but this method will not work with any one on MF3 or higher.
[AT&T Samsung Galaxy S 4 General] muniz_ri:
Alternatively, I337 owners can flash the MDL modem via Odin to re-gain access to the hidden menu(links to signed, odin flashable modems below) then follow the guide in the OP to unlock your phone. Once completed you can re-flash the MK2 modem. I tested this process on my own stock i337 running stock MK2 and it works but follow at your own risk. Also, my knox warranty flag has been tripped for a long time so I don't know if flashing the MDL modem will trip the flag or not. Someone else can chime in on that. Cheers:

MDL Modem: https://mega.co.nz/#!wpUUXQCS!Aws3S1HWW31WUnA1s4BavFsyoNU7fBTVaEvIzcd3t6M

MK2 Modem: https://mega.co.nz/#!pwESna5I!YK7EKG37xXIG1ReB-Z-mfSMoXNkXQ9t2EdMK9ofgJKg
[AT&T Samsung Galaxy S 4 General] bvzxa3:
Those on the MK2 firmware cannot flash using ODIN. Yes they maybe able to flash back to MDL but that has not been tested for people on MF3 and beyond. So I ask what firmware are you on? If you're on MK2 and you flashed modems using ODIN you have found something many others pretty much stated could not be done on MK2 firmware.
[AT&T Samsung Galaxy S 4 General] muniz_ri:
Yes, I'm on stock MK2 and it can be done. I created the stock, signed, odin flashable MK2 modem by using the patch files in the MK2 OTA update.
[AT&T Samsung Galaxy S 4 General] bvzxa3:
OK...that's better. At least I know it can be done. It's very tricky using ODIN on this locked bootloader. Mind if I add your method to the post in the other thread. We can make it a power post for free unlocking!!
[AT&T Samsung Galaxy S 4 General] muniz_ri:
Yes, add it. My intention was to help others based on what I discovered but I will again caveat that I don't know if flashing the MDL modem will trip knox or not.
[AT&T Samsung Galaxy S 4 General] bvzxa3:
Ok I will add that additional disclaimer to your method.
[AT&T Samsung Galaxy S 4 General] BlakeLCooper:
Same here, I have the SGH-I537 locked to AT&t with MF1..any help would be greatly appreciated.
[AT&T Samsung Galaxy S 4 General] chriskwarren:
Before folks on here tell everyone that it works, it would be a good idea to actually try another sim card first before telling people that its good to go.
[AT&T Samsung Galaxy S 4 General] mannerheim77:
Does unlocking affect the current SIM in any way?
[AT&T Samsung Galaxy S 4 General] Android3220:
Nahh I have done numerous.
[AT&T Samsung Galaxy S 4 General] bhp090808:
Verified with tmobile card, simple mobile card, and old ladies claro card

Sent from my Nokia 5120. Rocking it oldschool

---------- Post added at 08:49 PM ---------- Previous post was at 08:48 PM ----------

No

Sent from my Nokia 5120. Rocking it oldschool
[AT&T Samsung Galaxy S 4 General] milicigoran:
might be a dumb question but this works in rooted devices too, right?
[AT&T Samsung Galaxy S 4 General] bhp090808:
Yes

Sent from my Nokia 5120. Rocking it oldschool

---------- Post added at 10:36 PM ---------- Previous post was at 10:35 PM ----------

Heres a youtube video with instructions.

https://www.youtube.com/watch?v=9ggclTXqfcw&feature=youtube_gdata_player

Sent from my Nokia 5120. Rocking it oldschool
[AT&T Samsung Galaxy S 4 General] stickbo:
Well I followed the steps and everything went as you said. I think many people will hit the back softkey rather than back on the onscreen menu though. Maybe you should put that distinction in your op. Anyway, when I go back into the options it now says no golden backup exists. I dont have another sim to test right now, but so far so good. thank you.
[AT&T Samsung Galaxy S 4 General] bobgodd:
Might be a dumb question but what is the point? I'm assuming most of us bought this phone on contract upgrade, which comes with a 2-year service plan. So this enables you to purchase another service contract?
[AT&T Samsung Galaxy S 4 General] Will822:
Well for me, I will be in Italy next month for vacation. This will hopefully allow me to get a per-paid SIM card and use it on my S4. I had an unlocked iPhone a few years back and I was able to do the same when I was in Asia.
[AT&T Samsung Galaxy S 4 General] mocsab:
If you have an unlocked phone you can use it on any compatible carrier and you won't be required to sign a contract because you already own the phone typically, the carriers lock you in to two years to because they either gave you a phone or sold you one at a reduced price. But if you already own the phone, they won't require a contract like that..
[AT&T Samsung Galaxy S 4 General] DespairFactor:
The real test is if it's still unlocked after a restore or if you flash a custom rom.
[AT&T Samsung Galaxy S 4 General] FIREONHIGH:
What did you change the bands to??
[AT&T Samsung Galaxy S 4 General] theo1998:
Confirmed working in i337m (koodo).

Almost paid $30 for an unlock code!
[AT&T Samsung Galaxy S 4 General] DespairFactor:
I am testing to see if the carrier bloatware is removed after a restore afterwards. I also want to ensure that it stays unlocked after a restore and that NV doesn't become rewritten.
[AT&T Samsung Galaxy S 4 General] theo1998:
What is NV?
[AT&T Samsung Galaxy S 4 General] DespairFactor:
I believe the NV that you write the gold build to is the NVRAM on the phone, in which NV means non volatile, which means the information is not dropped on a reboot due to a battery constantly powering it.(Applying router knowledge to the possible operation of the phone) I am not sure if this is correct though, but either way, if we can rewrite the carrier lock on the device, why can't they with an update?
[AT&T Samsung Galaxy S 4 General] bhp090808:
Confirmed unlocked after factory reset and odin restore

Sent from my Nokia 5120. Rocking it oldschool
[AT&T Samsung Galaxy S 4 General] riammx:
Telcel Mexico

I have tried this in my i337M from Telcel Mexico, and it worked great i confirmed it with my att sim card and worked great

thanks
[AT&T Samsung Galaxy S 4 General] DespairFactor:
Does it remove carrier bloat?:)
[AT&T Samsung Galaxy S 4 General] bhp090808:
No. Network unlock never has

Sent from my Nokia 5120. Rocking it oldschool
[AT&T Samsung Galaxy S 4 General] urtruelove78:
If you are on MF3 then follow my post on following thread.

http://xdaforums.com/showthread.php?t=2597973
[AT&T Samsung Galaxy S 4 General] SDRebel:
I can confirm I used Muniz's method and it worked fine and no knox tripped...now i'm on the aws thread trying to unlock the bands
[AT&T Samsung Galaxy S 4 General] pyrexid:
I'm on the latest build I believe as the phone was just purchased this month...what would be the best method based on my phone info attached
[AT&T Samsung Galaxy S 4 General] damastah:
MK6... Well. Start with safe root. Then safe strap. Then downgrade the modem by flashing the modem.zip that you want. Then try the aws mod
[AT&T Samsung Galaxy S 4 General] DeadlySin9:
He's on an i337m, he doesn't need Safestrap. I believe you can use CF Auto Root, and you'll have to use an I337m modem. You might be able to just use RegionLock Away to unlock on your current modem, but I don't know.

Sent from Black<3's I337 running Hyperdrive
[AT&T Samsung Galaxy S 4 General] damastah:
Oh ok.
[AT&T Samsung Galaxy S 4 General] pyrexid:
Is there any method available without rooting. I believe rooting will trip the knox counter and void the warranty right?
[AT&T Samsung Galaxy S 4 General] damastah:
Lemme reboot and see.

Edit:No. There's no current method without root. And I'm rooted, with Safestrap installed and a different modem and none of my flags are tripped. Just the custom unlocked symbol on boot up which I read will disappear when you uninstalled root.

---------- Post added at 09:54 AM ---------- Previous post was at 09:49 AM ----------

You can always flash the stock Odin and then send it in for warranty as well
[AT&T Samsung Galaxy S 4 General] DeadlySin9:
Without root, I believe the only option is to try flashing an older modem through ODIN and trying the service menu again if you haven't already or just buying/requesting an unlock code.
[AT&T Samsung Galaxy S 4 General] cpoldedana:
This didn't appear to work for me either after flashing back to an MDL modem from MK2 as I'm on 4.3 and was working from another thread to use this method. When I installed my friends Tmobile sim, it prompted me for an unlock code. I think I am just going to purchase an unlock code. I understand that I need to turn the lock back on before the code will work. Is that just as simple as going through the menu process again and where I turned it OFF, I turn it back ON? Also, will the Golden backup be there? I wasn't clear about that and if it's not what to do about it.

Thank you!
[AT&T Samsung Galaxy S 4 General] damastah:
Install the region away... That's what I did. 4.3 MF3 modem
[AT&T Samsung Galaxy S 4 General] cpoldedana:
I might give it a try and see. My only concern at this point is now that I have tried this version and changed a setting is will the other one work now. I did see where several people said they had to try this a couple of times to get it work. Can someone confirm that if going through the menu process and changing the settings will cause a FREEZE after 5 times or is that only if you incorrectly enter a network unlock 5 times at the prompt screen? Don't want to get myself in that situation.
[AT&T Samsung Galaxy S 4 General] bvzxa3:
You probably tried it on MK2. Regionlockaway 1.3 does not work on MK2. Flash back to MF3 using method 1 in my thread. It will work.
[AT&T Samsung Galaxy S 4 General] SHADOWDC1:
Star/asterisk

Make sure that you are using the "*" star/asterisk as the FIRST character...
[AT&T Samsung Galaxy S 4 General] Neozx25:
How do I fix this issue? I'm on MDL. 4.2.2 Cyenogenmod 11. Do I need to be on a Touchwiz ROM?
[AT&T Samsung Galaxy S 4 General] bjybhs8:
Stock MK2 needing to Unlock via ODIN

I've downloaded the necessary tools to try this tonight or sometime this week. I hope to be successful since I am MK2 4.3 I337 and cannot find a way to unlock my phone. I've never done anything like this but hopefully ODIN software won't be too complicated and I can get some guidance from other posts on exactly the steps to follow.

Thanks in advance
[AT&T Samsung Galaxy S 4 General] Segnale007:
Hello folks, my gf has a i337m locked on Telcel Mexico, I debranded it and I have flashed the modem_CWM_I337MUMUAMDL.zip{5/30/2013}(Mexico) baseband in order to access to the Service Menu. Once in the Service Menu I am able to do the whole unlock process listed in this guide, however once the phone reboots the result is the same, S4 doesn't read any different simcard beside the one it is locked on, which is Telcel.

Any idea? Is there a specific baseband version that does this trick on i337m? Additionally, is there a website where I can find all kinds of baseband versions for the i337m?

Thanks
[AT&T Samsung Galaxy S 4 General] klevismartini:
telcel unlock done

hi to all, this is my first post,

a few min ago i unlock my gs4 by this CODE *#0011#.

the phone is ranning stock 4.3.

baseband I337MUMUAMDB2

build number I337MUMUEMK6

first the code doesnt work, but searching and searching and searching and searching and searching and searching and :silly: .

I got something :confused: only the telcel baseband MDL I think.

i flash it by odin but the first baseband doesnt change!!!!!! WTF....

flash it by CWM and again the first baseband doesnt change!!!!!! WTF.... AGAIN. I thought im in trouble because 350$ :crying:.

but but but, god help me to try to put in the code again *#0011#....

and WTF its work yeahhhhhhhhhhhhhhhhhhh :eek::victory:...

so maybe this will work for you too.... thanks to all.
[AT&T Samsung Galaxy S 4 General] Segnale007:
Hello my friend.. Thank you very much for your help.. Could you kindly tell me what you have found the baseband I337MUMUAMDB2 ??

Thanks