yashsingh1/xdaforums huggingface dataset:
[AT&T Samsung Galaxy S 4 General] crzygrmn:
You need to downgrade to oldest firmware for your i337m in order for it to work.

please hit thanks if i helped in any way. send from my g3 d852 beast
[AT&T Samsung Galaxy S 4 General] waterboy100:
Is there a reason that this isnt working under the GoldenEye Rom?

http://xdaforums.com/showthread.php?t=2313469&page=1579#post55780775
[AT&T Samsung Galaxy S 4 General] pulkitjeel:
I am on NC1 (AT&T). I followed all the steps (including both while disabling KNOX and not disabling it), but was still not successful. Any idea?
[AT&T Samsung Galaxy S 4 General] jd1639:
Try this. not sure if it works with nc1 but if it doesn't you can Odin back to nb1

http://xdaforums.com/showthread.php?p=54932702
[AT&T Samsung Galaxy S 4 General] pulkitjeel:
The steps in the given link also didn't work. :(
[AT&T Samsung Galaxy S 4 General] smashcz:
probably not working on i337m, I have att version and it worked

try this: http://xdaforums.com/galaxy-s4-att/general/guide-sim-unlock-canadian-galaxy-s4-t2821751
[AT&T Samsung Galaxy S 4 General] Harry TestTickles:
Just downgrade to stock ( your cell phone carrier ) 4.2.2, then run RegionLockAway then flash back to 4.4.2 and away you go. If Knox is already tripped then no worries about going this root. I can only speak for us Canadians eh
[AT&T Samsung Galaxy S 4 General] bigreddog69:
ive seen it

ive seen it in a few sites and in a lot of peoples help advice there is a few diff ways so you have to keep trying til you find the one that works for you
[AT&T Samsung Galaxy S 4 General] wanige@gmail.com:
Unlocked rogers and fido s4 s no problem

Thumbs up

Alright guys after searching everywhere i found a way to unlock Fido/Rogers S4, (bell, telus as well)

First of all download 4.2.2 and flash it with odin 3.07

(i found a rogers stock I337MVLUAMDJ_I337MOYAAMDJ_I337MVLUAMDJ_HOME.tar online)

(Your wifi and sound won't work after downgrade)

Get motochopper and root the phone (run.bat will root your phone)

download RegionLockAway-v1.3.apk and save it in your phone.

install the the RegionLockAway-v1.3.

Runthe regionunlock,

restart and your phone will be unlocked.

Update to 4.3 to get everything work right. then update to 4.4
[AT&T Samsung Galaxy S 4 General] czois2000:
i have a I337M from Bell with the Phonex Rom, can i just change the modem file? ive got the NE1 Modem i also want to enable AWS
[AT&T Samsung Galaxy S 4 General] Zehlek:
Sorry dumb question, to flash with Odin I need to be rooted correct?
[AT&T Samsung Galaxy S 4 General] Zehlek:
Do you have link for 4.3? I can't find it except for rapid gator and it is 15 hours to download
[AT&T Samsung Galaxy S 4 General] bs_inc312:
Trouble with Debug Screen

When I get to my debug screen, there is no Option 6 for Phone Control. When I first started in Service Mode, under Service, it says limited. Is this the issue? How do I resolve this?

---------- Post added at 08:25 PM ---------- Previous post was at 07:58 PM ----------

I have the same issue has anyone figured it out yet?
[AT&T Samsung Galaxy S 4 General] jmjoyas:
If you have the ATT S4, the flash MF3 modem through safestrap recovery and then run regionlockaway app.
[AT&T Samsung Galaxy S 4 General] spirodave:
for anyone having problems just use regionlockaway app .It works perfect . Just be sure to be on MF3 baseband and install the app and run it . Boom you are unlocked. The method in the OP worked on my S2 on tmobile but not my att s4. Only was successful with region lockaway
[AT&T Samsung Galaxy S 4 General] Plumbergod:
Missing options

I get to step 5 and then it ends it doesn't show option (3) I don't see Step 6 with bell Canada provider

---------- Post added at 02:48 PM ---------- Previous post was at 02:44 PM ----------

I only have the one option (1)
[AT&T Samsung Galaxy S 4 General] Normanic:
Unlock AT&T S4 on NB1 Firmware and Baseband...?

I got this phone with NC1 on it. Tried to unlock it by following different posts on XDA. I ended up soft bricking my phone.

To get my phone working again I flashed NB1 using the "NB1 ROOTED WITH SAFESTRAP" method here; http://xdaforums.com/galaxy-s4-att/general/guide-odin-to-stock-updating-rooting-t2926642.

My phone works fine now with root and safestrap. But I still want to remove the sim/network lock.

Baseband: NB1

Build: NB1

Android: 4.4.2

Someone please give me some guidance.

(This is my first post on XDA :D)
[AT&T Samsung Galaxy S 4 General] jd1639:
Flash the mf3 modem in safestrap then use regionlockaway.
[AT&T Samsung Galaxy S 4 General] newb123:
NEED HELP

So kind of a long story. I used this method to unlock my S4 a while ago and it worked. Recently my phone died and I had to send it into Samsung to repair. They sent me back the same phone, but it was updated to NJ4 and somehow was locked to ATT again. Since I was out of contract on the phone I was able to request the unlock code from ATT, however it does not work. I have a suspicion that the previous use of this method and then the software update is the cause.

Under NETWORK LOCK i have no option to turn SHA256 ON or OFF.

I only have the option see PERSO SHA256 Info, which states: SHA256_ENABLE_FLAG [1]

I have also tried to just "Restore Back-up" under NV-Rebuild and nothing changed.

I live mostly abroad at the moment, so this phone is useless if cant unlock it. I would greatly appreciate any help.
[AT&T Samsung Galaxy S 4 General] jmjoyas:
Root, install safestrap recovery, flash MF3 modem in recovery and run regionlockaway app. This will work for the ATT S4
[AT&T Samsung Galaxy S 4 General] newb123:
Thanks for the advice. Seemed to work fine.
[AT&T Samsung Galaxy S 4 General] Normanic:
Flashing MF3 modem.

Thanks for replying. I just want to be clear on something before I flash the MF3 modem found here http://xdaforums.com/showthread.php?t=2496517.

I will do as follows;

1. Install Regionlockaway.

2. Go to Safestrap, click on "Mount."

3. Mount storage device you put the MF3 modem on by checking "System" if it is stored on the internal memory (example sdcard\download) or "Micro SDcard" if it is saved to your external Micro SD Card.

4. Go to main screen in Safestrap.

5. Click on "Install."

6. Click on the actual .zip file for the MF3 Modem Flash file.

7. Go to main screen in Safestrap. Click on "Reboot," then "System."

8. Run Regionlockaway.

After I've done this should I go back to NB1 modem. Or is there something else I can flash for optimal performance. I would like the ability to flash custom roms.
[AT&T Samsung Galaxy S 4 General] Raj.R:
Hi, i need some help to unlock my phone so i can use it with a different carrier sim. My current S4 SGH-i337M is rooted with CFRoot. the baseband is i337MVLUFNI2 and 4.4 Kitkat. I tried with Regionlock away v1.3 and it didn't work. Wonder what i was doing wrong and found out i needed to downgrade my modem file? can somebody please shed some light. I have seen many tutorials here but they are either for a different baseband or for a different purpose.
[AT&T Samsung Galaxy S 4 General] MysticGolem:
Hi, I also have the same phone and baseband, I'm with Bell, I also used CF-AR and RegionLock Away, the app stated it was successful but I don't have a Rogers SIM card to test.

However how do you know that your phone didn't unlock correctly? How did you test it?

I also agree that we would need to downgrade our modem to pretty much the first one we got, when we first got the phone, but that seems like a lot of work plus I haven't found a simple and detailed procedure on how to do it.

I personally would not like having to flash my phone with 4.2.2 and then use RegionLock Away, then flash back to 4.4.2 NI2. Once again it seems like a lot of work, I doubt we can just flash the MD2 modem and then use RegionLock Away. I hope someone can show me otherwise :D

I also want to note that I am using the stock TW rom, that is something I will not change, but I am of course running a launcher, Apex for customization.

Kindly advise!
[AT&T Samsung Galaxy S 4 General] passingthrough:
I have a brand new Koodo S4 SGH-1337M and tried to use the method described in the beginning but am not getting the main menu for Servicemode where you can tap [1] UMTS. I tried multiple times but with same result. Can someone guide me how to proceed?
[AT&T Samsung Galaxy S 4 General] gmpowerhouse:
Steps will pull up [1] UMTS.

I can get to the ServiceMode screen but I cannot get to [1] UMTS. I have the SGH-I337 model. See attachment.
[AT&T Samsung Galaxy S 4 General] croatiancowboy:
I'm not sure if this will help. But worth a try. I'm on koodo also, and it works for me.

*#0011#

Hit menu then select back from menu option.

Select menu again, then select key input.

In the input enter Q0 (may not work, try Q0000) that's capital Q followed by four zeros.

Then continue with the rest. I can't confirm, this unlocks the phone because I haven't been able to complete it, I'm on 4.4.2 koodo stock latest ending In ni1.

Hope that helps somewhat. Its stated in like one of the original posts or shortly after but incorrectly written when posted.
[AT&T Samsung Galaxy S 4 General] manas356:
my Galaxy S4 SC-04E says network unlock code blocked. i tried all mentioned way but did not worked. plz help
[AT&T Samsung Galaxy S 4 General] talha746:
Hey where did you find the rogers stock I337MVLUAMDJ_I337MOYAAMDJ_I337MVLUAMDJ_HOME.tar?
[AT&T Samsung Galaxy S 4 General] tailgunner9:
Sim Unlock

AT&T will unlock Free. They did my S4. http://www.att.com/esupport/article.jsp?sid=KB414532&cv=820
[AT&T Samsung Galaxy S 4 General] talha746:
Do you have to have the locked carriers sim card to get this to work?
[AT&T Samsung Galaxy S 4 General] redhonker:
I have the rooted MK2. Downgrade to MDL modem and now I can see the service menu. However, after I followed through all the steps the automatic reboot, it still complains about Invalid SIM card (Network locked SIM card inserted).

What can I try?

Thanks
[AT&T Samsung Galaxy S 4 General] moyaya02:
My unlock is intermittent. I sometimes see the signal bars ... and sometimes see the no service sign (circle with a line crossing it)...

It is a galaxy s4. GT-I 9505. baseband I337 MVLLUAMDJ. I have custom ROM Imperium V. 10.0 and Kernel: 3.4.108 Imperium LL Kernel v2.7.

I can access the service menu ... I follow the steps but nothing happens. I always get Sim card invalid. My understanding is I need to downgrade modem to get the service menu.

The app RegionLock away helps a bit and remove the lock .. but intermittently?

Any advise?
[AT&T Samsung Galaxy S 4 General] goonieboy2008:
Hi

I have a Galaxy S4 SGH-M919V on Videotron network with all the latest updates from my provider, I would be greatly appreciated if somebody could tell me how to unlock my phone or just guide me to a link that works. Thanks
[AT&T Samsung Galaxy S 4 General] audit13:
I think you need to be running a stock ROM to use the free unlock method. I was on a custom ROM, flashed back to stock, and region unlock worked on a stock 4.4.2 ROM with 4.2.2 modem on i337m.
[AT&T Samsung Galaxy S 4 General] REDMILE4444:
hey guys! so for anyone having "not registered to network" issues i hope this might help.. I am posting this here as it is the closest thread i could find quick. I unlocked my phone through hidden menu as well. but a couple months after having working servicd through new carrier my phone disconected outta the blue.. figured it was a sim error ie. faulty.. TURNS OUT ONE OF MY SETTINGS I MISSED WAS WRONG. what a nightmare! anyways.... AFTER SELECTING THESE SETTINGS, PHONE REBOOTS AND "BOOM" NETWORK SERVICE UP N CONNECTED!!

once your in service menu via. *#0011#-back key - select imput Q000.

#1. UMTS

#6.COMMON

#4.DIAG CONFIG

(#2.DM/DUN OVER HSIC + #5.DBG MSG. "ON")

after selecting phone restaert n service good.. hope i help someone as one lil miss gave me a heck of a time.. take care

sent from my SGH-1773M
[AT&T Samsung Galaxy S 4 General] utsc:
The unlocking method specified by OP seems to work only in older versions of Android.

Any workaround for SGM-1337M running Anroid 5.01?
[AT&T Samsung Galaxy S 4 General] audit13:
For the i337m, downgrade via Odin using the most recent stock 4.4.2 rom, flash the 4.2.2 modem, root, run regionlockaway.apk, flash back to stock 5.01. I did this on a Telus i337m and a Rogers i337m.
[AT&T Samsung Galaxy S 4 General] utsc:
Thank you very much and I have hit the thank you button as well.

I have flashed other devices but not phones. I currently have a Fido Galaxy S4 SGH-1337M with Android 5.0.1 and I need to unlock it.

Can you please point me to an easy to follow detailed step by step instructions with links to the relevant files as I am a beginner?

Thank you in advance
[AT&T Samsung Galaxy S 4 General] utsc:
Thank you so much; you're extremely helpful. There is no hurry please upload the modem and region unlock app when you have time.
[AT&T Samsung Galaxy S 4 General] audit13:
I updated my post with more detail.
[AT&T Samsung Galaxy S 4 General] utsc:
You're the best, thank you so much for taking the time to write such a detailed guide and upload all the file.

I greatly appreciate your time and assistance.
[AT&T Samsung Galaxy S 4 General] audit13:
Let me know if you are successful. What I wrote was based on memory as the last phone I unlocked was a few months ago.
[AT&T Samsung Galaxy S 4 General] utsc:
I will try it in the next couple of days and update you. I have heard that some people de-brand the phone, do you recommend it?

My parents are travelling and will try to use phone in Europe, Asia & Australia with a local SIM; hence I would like to open up any hidden blocked frequency bands to connect with many 3G, HSPA+ & LTE networks as possible.

My initial research shows that only AWS frequencies can be added for I337M but I might be wrong.

Thank you in advance.
[AT&T Samsung Galaxy S 4 General] audit13:
Only AWS frequencies can be added, but they may disappear when rebooting the phone. I am on Bell so I am not sure how well enabling aws frequencies will work in Europe.

Edit: As a test, I took my i337m that was running a custom ROM and flashed stock Telus OH1 firmware and booted the phone stocl 5.01 with no problem. I then flashed stock Bell 4.4.2 NI2 to the same phone and 4.4.2 booted up with no problems. I then flashed back to stock Telus OH1 and the phone still booted 5.01 with no problems. I performed a full wipe in stock recovery before booting the newly-flashed ROM for the first time.
[AT&T Samsung Galaxy S 4 General] arasarn:
If you are on a custom ROM you need to flashback to 5.0.1 stock with odin 3.10.7 BEFORE you flash to 4.4.2 with odin 3.7
[AT&T Samsung Galaxy S 4 General] audit13:
I used 3.07 to flash 5.01 and 4.4.2. For the modem, I used 3.10 because it was recommend in another post.

My instructions were for an xda member that was running stock Fido 5.01 firmware.

Edit: I was able to flash stock 4.4.2 with Odin from a custom rom without any errors.
[AT&T Samsung Galaxy S 4 General] arasarn:
I guess the lesson is, if the exact thing you try first doesn't work, try using a different tool to get the same job done.

The phone needs to be on 4.4.2 rom with 4.2.2 modem to run the regionlockaway.apk is what it boils down to. Thanks for creating the guide, it made it way easier for me to stick handle through the process
[AT&T Samsung Galaxy S 4 General] audit13:
[MENTION=1310815]arasarn[/MENTION], Thank you for the kind words but I cannot take any credit for the guide as I just added some details to the original guide.

It's very true in that a method that works for one person may not work for everyone.
[AT&T Samsung Galaxy S 4 General] Zeus2008:
Step 3 below, doesn't work for me - I hit the menu, then "BACK", then "KEY INPUT" then entered "1" - hit menu again, then "BACK" but did not get the ServiceMode menu

Mobile Device = Samsung Galaxy S4 Model # SGH-1337M

Network = Rogers

--------------------------------------------------------------------------------------

Step 1: Launch the Phone app on your Galaxy S4, and dial in: *#0011#

Step 2: Press the Menu button followed by the Back key. Then, hit the Menu button again and select KEY INPUT. Enter 1 and press the OK button to enter ServiceMode.

Step 3: Press Menu one more time and tap back again. This will pull up the Main Menu for ServiceMode. Tap [1] UMTS.

Step 4: Now select [1]DEBUG SCREEN, followed by [6] PHONE CONTROL.

Step 5: From the next screen, pick [6] NETWORK LOCK.

Step 6: You’ll get three options. Hit the one that says [3] PERSO SHA256 OFF.

Step 7: Now, you need to get back to Main Menu. To do this, hit the Menu button followed by the Back key. In Main Menu, now pick [6]COMMON, and then [6] NV REBUILD.

Step 8: The phone will tell you that a Golden Backup exists. Tap [4] Restore Back-up.

Your device will now go through a series of “conditions”, where it will first freeze, then get on a black screen with Blue LED on and both capacitive buttons on, after which it will reboot automatically. The whole cycle might take a couple of minutes, so be patient. Once it powers back on, it’s network unlocked, permanently. Enjoy Folks ...[/QUOTE]
[AT&T Samsung Galaxy S 4 General] audit13:
If the phone is running a 4.4.2 or newer ROM, the menu method can't sim unlock the phone.

THis may help: http://xdaforums.com/showpost.php?p=64978235&postcount=713
[AT&T Samsung Galaxy S 4 General] utsc:
:rolleyes:

I have completed upto the above step. When I put a another SIM it says Invalid SIM and is asking for the unlock Key.

I think I must have made a small mistake somewhere but I am not sure where?

My Fido S4 SGH-I337M is currently on Android on Android 4.4.2.

I have installed the TWRP

Then I installed the UPDATE-SuperSU-v2.46.zip (that is what I get when I click the download Link).

I have installed the Modem BIN file using ODIN 3.10.7 and I got a message in Green saying "PASS"

I have installed the regionlockaway.apk and I have opened it. However when I open it I don't get any unlock confirmation message but only get a message saying to support them by purchasing the app at GooglePlay

Can someone help me to identify / trouble shoot any possible mistakes?

Thank you in advance
[AT&T Samsung Galaxy S 4 General] audit13:
Did you test the sim with the 4.2.2 modem? You need to flash back to stock 4.4.2 or 5.01, then try the sim.

There is no confirmation the phone is sim unlocked.

If you put in a foreign sim, you should not be prompted to enter a network unlock code.
[AT&T Samsung Galaxy S 4 General] utsc:
Although I "opened" RegionLockAway App and I did NOT TAP on the Region Lock Away Button.

I tap the region lock away section and my phone is unlocked now.

Thank you audit13 for compiling such a detailed guide and support.

My Fido S4 SGH-I337M is currently on Android on Android 4.4.2 should I upgrade it to 5.01 or any other ROM. Is it possible to flash this with an Internation Version Firmware as I am planning to gift this phone to be used in India. A
[AT&T Samsung Galaxy S 4 General] audit13:
I recommend flashing back to 5.01. Check the frequencies for the carrier before sending the phone away.
[AT&T Samsung Galaxy S 4 General] utsc:
Anyone tried installing the Android 6.0 Marshmallow ROM by the JDC Team (Jflte DevConnection Team) for the Galaxy S4. Apparently it is compatible with ALL US & Canadian Models

I hate the bloatware. What alternatives do I have instead of flashing back to Fido 5.01 ROM.

Any other stable / reliable alternative to Fido 5.01 ROM

Thank you in advance
[AT&T Samsung Galaxy S 4 General] utsc:
If i flash back to Fido 5.01 will I still keep the Root ?

Sorry for my ignorance
[AT&T Samsung Galaxy S 4 General] audit13:
Flashing back to stock will not keep root. If you want a rooted stock rom, use Odin to flash stock, perform a factory wipe before booting 5.01 for the first time, quickly run through the setup routine, flash twrp, flash supersu, reboot, update supersu binaries, and you'll be rooted. If you want root with stock recovery, flash cfautoroot for the sgh-i337m from chainfire website.
[AT&T Samsung Galaxy S 4 General] utsc:
Thank you. I am planing to go stock 5.01.

Do you recommend flashing with [SGH-I337M] Lollipop Official Firmware + Modem? What are the benefits?

Since I have Fido SGH-I337M I should be going with the Rogers version.

http://xdaforums.com/galaxy-s4-att/general/sgh-i337m-canadian-stock-official-t3082758
[AT&T Samsung Galaxy S 4 General] audit13:
I always run the latest bootloader and modem and many custom ROMs require both to be up to date.

You can flash any of the stock 5.01 ROMs from Telus, Koodo, bell, virgin, Rogers, or Fido.
[AT&T Samsung Galaxy S 4 General] sahed01:
what about the wifi??? how can I use my wifi?? :)
[AT&T Samsung Galaxy S 4 General] flyologist:
Thank you for this Audit, I have question though I did this and it's not asking me for the code anymore and I see (wind away) when i try to to look up the network manually and when i try to connect to it, it says unable to register with network and whenever I try to make a call I get a not registered sim error,

Did I do something wrong ?
[AT&T Samsung Galaxy S 4 General] audit13:
If you are not prompted for a code anymore with your Wind sim in the phone, the phone is unlocked. The i337m does not natively support Wind's aws frequencies. You need to enable it via software hack and this may help: http://xdaforums.com/showthread.php?t=2291589

I use Bell as my carrier so I am not able to confirm if the linked thread is still relevant.
[AT&T Samsung Galaxy S 4 General] ocd_amp:
do not do this. This guy provides no proof how or why. This is diagnostic mode and should be set to 1 - USB (Incase you take it to a Certified shop that unlocks phones, they will use USB first, and then any other boxes incase it is required) and the star means what is currently selected. It has nothing what so ever to do with network unlock.

Edit : DM/DUN over HSIC means its over High speed Internet Connection as opposed to USB. This is generally used by Samsung tools or related servers to provide the unlock mechanism over an internet connection.
[AT&T Samsung Galaxy S 4 General] ammour444:
Man you are genious!! Thanks bro I appreciate it a lot
[AT&T Samsung Galaxy S 4 General] ShawnWiosna:
should mention that metropcs requires you to call and give the new phones imei number to put in the system
[AT&T Samsung Galaxy S 4 General] drust89:
Hi guys,

let me tell some story first before asking :)

My sister bought me s4 Mini i-337 AT&T since 2013 and that year I've my phone work nice (diff type of samsung) and I dont use S4. Now my phone got big damage and can't repair so I now I want to use s4 Mini i-337 AT&T from my sister. also got batre dead "maybe 4years I never touch that phone" so I bought new power from samsung retail. When I turn on my S4, it say Invalid SIM Card and need to unlock the sim. So I found this thread, readed from page 1 to 35 and trying to unlock guide in first page and got strees until I deciede to write this.

Step 1: Launch the Phone app on your Galaxy S4, and dial in: *#0011#

Step 2: Press the Menu button followed by the Back key. Then, hit the Menu button again and select KEY INPUT. Enter 1 and press the OK button to enter ServiceMode.

Step 3: Press Menu one more time and tap back again. This will pull up the Main Menu for ServiceMode. Tap [1] UMTS.

Step 4: Now select [1]DEBUG SCREEN, followed by [6] PHONE CONTROL.

Step 5: From the next screen, pick [6] NETWORK LOCK.

Step 6: You’ll get three options. Hit the one that says [3] PERSO SHA256 OFF.

Theres no three options on my phone, Ive only two options

[1] PERSO SHA256 Info

<<< inside this menu is >>> SHA256_ENABLE_FLAG[1] "when I click this menu always bring me back to Main Menu"

[2] RAT_FREE_SUPPORITING ON

<<< inside this meny is >>> NOW RAT FREE SUPPORTING

Im stuck in here.

FYI :

Android version : 4.3

baseband version : I337UCUFNB1

Buildnumber : JSS15J.I1337UCUEMK2

Please help me, I dont have money for buying some new phone.. :(
[AT&T Samsung Galaxy S 4 General] audit13:
If the phone is running a 4.3 ROM or higher, the free unlock method using the dialler will not work as that method needs a stock 4.1.1 dialler.

Contact AT&T through their website and try to get the unlock code for free.
[AT&T Samsung Galaxy S 4 General] drust89:
ok I will try to reflash stock rom 4.2.2.

thanks for your information! :)