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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
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
Is it possible to flash a t mobile modem to my ATT i337 with MK2 through safestrap?
1) questions go in the q&a section
2) if it's a flashable zip then it should work, but I don't know if the modem is compatible, and I actually doubt it a bit.
Sent from Black<3's I337 running Hyperdrive
Maybe I phrased it wrong there was a thread about unlocking the t mobile bands on a att s4 a while back I couldn't do it because of the locked boot loader I was wondering if there is a way to do this via safestrap
robk68 said:
Maybe I phrased it wrong there was a thread about unlocking the t mobile bands on a att s4 a while back I couldn't do it because of the locked boot loader I was wondering if there is a way to do this via safestrap
Click to expand...
Click to collapse
Definitely not though ss
robk68 said:
Maybe I phrased it wrong there was a thread about unlocking the t mobile bands on a att s4 a while back I couldn't do it because of the locked boot loader I was wondering if there is a way to do this via safestrap
Click to expand...
Click to collapse
Look in the general section, there's various threads about how to unlock the phone but the AWS mod seems to not work on 4.3 which i guess you need for LTE? Someone will have to confirm what that does. But you should still get H+ I believe.
DeadlySin9 said:
Look in the general section, there's various threads about how to unlock the phone but the AWS mod seems to not work on 4.3 which i guess you need for LTE? Someone will have to confirm what that does. But you should still get H+ I believe.
Click to expand...
Click to collapse
The phone is already unlocked i actually get the LTE but not the h plus which has more coverage in my area
robk68 said:
The phone is already unlocked i actually get the LTE but not the h plus which has more coverage in my area
Click to expand...
Click to collapse
Just search up the T-Mobile APN and see if there's another one that uses H+ or something.
Can someone tell me how to unlock bootloader samsung s4 at&T version 4.2.2 . I have been trying to look around and find answers but came up with nothing.This phone has a unpaid bill attached to it and I'm thinking this should not affect me from using this on another carrier like straight talk. So can someone point me in the right direction..thanks
Wrong place. This is the Samsung Galaxy S4 for Sprint, not ATT.
Sent from my SPH-L720 using Tapatalk
Moved to AT&T S4 Q&A.
Aquarius169 said:
Can someone tell me how to unlock bootloader samsung s4 at&T version 4.2.2 . I have been trying to look around and find answers but came up with nothing.This phone has a unpaid bill attached to it and I'm thinking this should not affect me from using this on another carrier like straight talk. So can someone point me in the right direction..thanks
Click to expand...
Click to collapse
You can't unlock the bootloader. If you mean SIM unlock, look in the General section for the various unlock threads. If you're on MDL, you can use the service menu, and if on MF3 use ReigonLockAway.
Hi, I've been reading a lot of posts and finally got courage to ask if there's a way to do a international unlock on Sprint Samsung Galaxy S4 running stock NG2, i already tried to downgrade to MF9 but couldn't pass in odin.
Any thoughts?
mbwprod said:
Hi, I've been reading a lot of posts and finally got courage to ask if there's a way to do a international unlock on Sprint Samsung Galaxy S4 running stock NG2, i already tried to downgrade to MF9 but couldn't pass in odin.
Any thoughts?
Click to expand...
Click to collapse
I would really like to know this as well I got caught up in the MF9 boot loop. Fixed that then tried to go MJA MDC MF9 and broke thing horribly. Just trying to get my Sprint Samsung S4 SPH-L720 over to T-mobile or at&t. Someone that could point us in the right direction with getting NG2 unlocked Internationally then domestically
mbwprod said:
Hi, I've been reading a lot of posts and finally got courage to ask if there's a way to do a international unlock on Sprint Samsung Galaxy S4 running stock NG2, i already tried to downgrade to MF9 but couldn't pass in odin.
Any thoughts?
Click to expand...
Click to collapse
Mozze3291 said:
I would really like to know this as well I got caught up in the MF9 boot loop. Fixed that then tried to go MJA MDC MF9 and broke thing horribly. Just trying to get my Sprint Samsung S4 SPH-L720 over to T-mobile or at&t. Someone that could point us in the right direction with getting NG2 unlocked Internationally then domestically
Click to expand...
Click to collapse
Looks like neither of ya'll read enough. Well follow this thread.
http://forum.xda-developers.com/showthread.php?t=2703955
There are other similar threads to search and read on.
Once we got the 4.3 MJA update. There was when out bootloader got locked by knox security from Samsung. We can't downgrade to any firmware by Odin but we can downgrade by ROMs just not the bootloader. You either need to use the firmware you are using to restore or update to a newer firmware.
Side comment. I still don't know why would you buy a specific phone for a carrier and use it for another carrier. Doesn't make sense.
Sent from my SPH-L720
ROMANTiC KiD said:
Looks like neither of ya'll read enough. Well follow this thread.
http://forum.xda-developers.com/showthread.php?t=2703955
There are other similar threads to search and read on.
Once we got the 4.3 MJA update. There was when out bootloader got locked by knox security from Samsung. We can't downgrade to any firmware by Odin but we can downgrade by ROMs just not the bootloader. You either need to use the firmware you are using to restore or update to a newer firmware.
Side comment. I still don't know why would you buy a specific phone for a carrier and use it for another carrier. Doesn't make sense.
Sent from my SPH-L720
Click to expand...
Click to collapse
It's all about pennies, here in Mexico it's almost 1/3 of retail price if you bring a smartphone from USA and unlock it
mbwprod said:
It's all about pennies, here in Mexico it's almost 1/3 of retail price if you bring a smartphone from USA and unlock it
Click to expand...
Click to collapse
But why use a CMDA phone with a GSM carrier?
Sent from my SPH-L720
ROMANTiC KiD said:
But why use a CMDA phone with a GSM carrier?
Sent from my SPH-L720
Click to expand...
Click to collapse
First of all thanks for the thread you provided, it helped me to get my phone unlocked and working on Telcel Mexico Carrier, but i can't make 3g service work, i think i screwed some ServiceMode Settings, is there any way to reset them to default and start over?
Thanks in advance
mbwprod said:
First of all thanks for the thread you provided, it helped me to get my phone unlocked and working on Telcel Mexico Carrier, but i can't make 3g service work, i think i screwed some ServiceMode Settings, is there any way to reset them to default and start over?
Thanks in advance
Click to expand...
Click to collapse
You might want to Odin back to stock ng2 and do a factory reset. Also have you change your apns? That could be why you aren't getting 3g.
Sent from my SPH-L720 using XDA Free mobile app
ROMANTiC KiD said:
You might want to Odin back to stock ng2 and do a factory reset. Also have you change your apns? That could be why you aren't getting 3g.
Sent from my SPH-L720 using XDA Free mobile app
Click to expand...
Click to collapse
I just did that and several apps (Internet, S Voice, S Wave) keep crashing after restart) also the ServiceMode Settings remain unchanged. Please help me here, I'm starting to panic!