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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
Hey everyone... so I have a problem and im not sure if anything will work... so I tried the free unlock method but it didnt work...but then my phone updated to the mf3 baseband... and when I got an unlock code it was denied.. I looked it up and its because I tried the free method... anyone know how I can get back onto mf3... would kies emergency recovery fix anything... quick replies would be appreciated since i just flew to england and need my phone
Afaik, if you try the free unlock too many times the phone permanently locks the ability to unlock it. There is no way to get that ability back.
I only tried the free unlock mode once, but now I can't get it to unlock with the unlock code I have. And I know there is a way if you have the old firmware to fix the problem, but I was wondering if Kies emergency restore would revert it back to the old firmware, or using Odin and a sammobile firmware would fix my issues
Donnyohs said:
I only tried the free unlock mode once, but now I can't get it to unlock with the unlock code I have. And I know there is a way if you have the old firmware to fix the problem, but I was wondering if Kies emergency restore would revert it back to the old firmware, or using Odin and a sammobile firmware would fix my issues
Click to expand...
Click to collapse
Your on mf3 firmware so you can't go back to an earlier firmware.
jd1639 said:
Your on mf3 firmware so you can't go back to an earlier firmware.
Click to expand...
Click to collapse
I thought there was a way, The forums are so confusing on mf3, I've heard you can't, and I've heard its possible... but never a way to do it... So I'm guessing I'm screwed....
Donnyohs said:
I thought there was a way, The forums are so confusing on mf3, I've heard you can't, and I've heard its possible... but never a way to do it... So I'm guessing I'm screwed....
Click to expand...
Click to collapse
Don't listen to other forums. Stick to the real deal Xda att s4 section. There is no way to Odin, kies restore, etc to an older firmware if you took the official MF3 update. As to unlock, you can try fastgsm. They charge $15 via remote PC. Many folks used it since using the free unlock method toasted their unlocked via code method.
Sent from my GT-I9505G using Tapatalk 2
Febby said:
Don't listen to other forums. Stick to the real deal Xda att s4 section. There is no way to Odin, kies restore, etc to an older firmware if you took the official MF3 update. As to unlock, you can try fastgsm. They charge $15 via remote PC. Many folks used it since using the free unlock method toasted their unlocked via code method.
Sent from my GT-I9505G using Tapatalk 2
Click to expand...
Click to collapse
Thanks I'll try that... Whats stupid is that I didn't update my phone, and I woke up one day looked at my phone and it said updating android software or something like that... and I ended up being stuck with MF3
Donnyohs said:
Thanks I'll try that... Whats stupid is that I didn't update my phone, and I woke up one day looked at my phone and it said updating android software or something like that... and I ended up being stuck with MF3
Click to expand...
Click to collapse
I seen a few people wake up to that. Its the sneaky OTA process that does it as we sleep. Its their way to snatch up the unaware
Sent from my GT-I9505G using Tapatalk 2
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
to use with straight talk, and I just have to bug you all with a few questions.
The basics: I have an active Straight Talk sim card that I want to put in my galaxy S4 that I just purchased (did not know it was Sprint until it was too late). Now, after hours of trying, bricking, unbricking, rooting and getting false hope from the [HOWTO] / [GUIDE] SPH-L720 Domestic SIM Unlock T-Mobile:AT&T:metroPCS:Straighttalk thread (which I assume would be my answer to my problem if not for the fact every attempt at flashing to mf9 bricks my phone because Odin fails everytime), I don't know what to do.
As of right now, my Sprint GS4 has been factory reset to Android V 4.3, baseband version L720VPUEMJA, with the model # SPH-L720. Can I even achieve what I want to do with these parameters and is there anyone out there willing to give me hand?
Thanks for any replies!
First you didn't completely read through the thread, secondly you can't go back so to unlock you need to flash a MDC modem and follow instructions
Sent from my SGH-M919 using Tapatalk
.
I mean. I read a lot. I'll be the first to admit I just may not have picked up on something in those 35 pages. Also, i believe I tried to flash my modem through the Odin one-click, but the process would hang when trying to establish the connection. I know the answer is on this forum somewhere, and I can usually follow these type of tech tutorial fairly well, but I'm just stuck. Do you have any specific advice?
If you are on the OTA MJA modem with MJA bootloader with Knox I do not think you can downgrade to any other previous modem without the issues you are describing with bricking and soft bricking.
Sent from my SPH-L720 using xda app-developers app
FanOfSkynyrd said:
If you are on the OTA MJA modem with MJA bootloader with Knox I do not think you can downgrade to any other previous modem without the issues you are describing with bricking and soft bricking.
Sent from my SPH-L720 using xda app-developers app
Click to expand...
Click to collapse
I took the ota update and got crappy Knox I just flashed it using Odin the modem file is only 30mb
Sent from my SGH-M919 using Tapatalk
nemofbaby2010 said:
I took the ota update and got crappy Knox I just flashed it using Odin the modem file is only 30mb
Sent from my SGH-M919 using Tapatalk
Click to expand...
Click to collapse
You wouldn't have a link to that modem file? Maybe I was trying to us the wrong one. I was using "SPH-L720_MDC_Modem.tar.md5", and the program would just stall.
5589396999
FanOfSkynyrd said:
If you are on the OTA MJA modem with MJA bootloader with Knox I do not think you can downgrade to any other previous modem without the issues you are describing with bricking and soft bricking.
Sent from my SPH-L720 using xda app-developers app
Click to expand...
Click to collapse
If this is true, am I S.O.L?
naw2n said:
If this is true, am I S.O.L?
Click to expand...
Click to collapse
You can downgrade let me find a link
First unlock for international use: http://forum.xda-developers.com/showthread.php?t=2415587 follow that guide then go over to domestic and get a unactivated sim card to make sure its working I used T-Mobile unlocked it then canceled my sprint contract. Only downside is for aosp ROMs you have to do a couple edits for them to work
And always run Odin as admin
Sent from my SGH-M919 using Tapatalk
nemofbaby2010 said:
You can downgrade let me find a link
First unlock for international use: http://forum.xda-developers.com/showthread.php?t=2415587 follow that guide then go over to domestic and get a unactivated sim card to make sure its working I used T-Mobile unlocked it then canceled my sprint contract. Only downside is for aosp ROMs you have to do a couple edits for them to work
And always run Odin as admin
Sent from my SGH-M919 using Tapatalk
Click to expand...
Click to collapse
It worked! ...kind of! I can now make calls, which is a HUGE step forward! Thank you so much!
The only thing is that I cannot send/receive multimedia messages, I have tried all the APNs listed at this page http://apn-settings.com/samsung-galaxy-s4-straight-talk-apn-settings/, but none work. Any ideas?
naw2n said:
It worked! ...kind of! I can now make calls, which is a HUGE step forward! Thank you so much!
The only thing is that I cannot send/receive multimedia messages, I have tried all the APNs listed at this page http://apn-settings.com/samsung-galaxy-s4-straight-talk-apn-settings/, but none work. Any ideas?
Click to expand...
Click to collapse
You're welcome and I Dont know much about straight talk ask in the unlock thread they can point you in the right direction
Sent from my SGH-M919 using Tapatalk
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!