Hi,
My current phone Samsung S4 SGHI1337 with software version ending MF3 is not eligible for unlock until the contract expires with AT&T. I was told that this phone with the IMEI number can be unlocked but I have to make sure once it's unlocked, AT&T will still service this unlocked phone.
I don't know what this all means. I need to take this phone with me abroad. I don't want to pay for expensive international roaming with a locked phone.
Also, has anyone used cellunlocker with positive experience?
Thank you.
I have used them, and it worked great on my i337m here in Canada. 25 bucks, got the code a couple hours later, threw it in with a non-Rogers SIM, and boom, it worked. HOWEVER, I am using the i337m from Canada, not the i337 from AT&T, so YMMV./
I unlocked my i337 by flashing the MDL modem file using the instructions for the dial codes then flashing current build modem back worked and did not trip knox
Thanks...but technically challenged.
gottech said:
I unlocked my i337 by flashing the MDL modem file using the instructions for the dial codes then flashing current build modem back worked and did not trip knox
Click to expand...
Click to collapse
For the technically challenged such as myself, how do you manage to do that step by step? Thanks.
http://forum.xda-developers.com/showthread.php?t=2597973
all the step by step I used
gottech said:
http://forum.xda-developers.com/showthread.php?t=2597973
all the step by step I used
Click to expand...
Click to collapse
Thank you so much. Yours truly here has turned brain dead looking at the steps. I don't even have a card reader..... I am afraid to try this.. I probably end up damaging my phone, LOL...
Have you tried regionlock away available through play store some people have luck with that but you need to be rooted
gottech said:
Have you tried regionlock away available through play store some people have luck with that but you need to be rooted
Click to expand...
Click to collapse
No, I have not. Not sure how to do that either. I read some of the posts here, but still have not a clear clue. If you could point me to a more step by step post, I'd very much appreciate it. :cyclops::cyclops::cyclops::cyclops:
FYI - my current phone does not have international roaming with AT&T. I have it disabled. Would this matter when it comes to regionlock? Can you region unlock EU Zone? I just want to be able to take the phone with me to Europe and insert the local SIM so that I don't get outrageous charge on international roaming. I do text a lot while abroad.
More Confused Than Ever
I am the OP in this thread. I am more confused than ever.
I just used the code *#12580*369# and found that the RF Cal is 20131114 Date of Manufacture
I then used *#1234# and found out that all the AP,CP,CS ended with MK2. But on the phone box, the S/W version ended in MF3. So I don't know if I have MF3 or MK2 firmware version.
When I use the code *#197328640#. I cannot see the #6 Network Unlock screen. So I guess it's hidden from me.
Sorry for all these questions. I am a newbie at this.
confused2014 said:
I am the OP in this thread. I am more confused than ever.
I just used the code *#12580*369# and found that the RF Cal is 20131114 Date of Manufacture
I then used *#1234# and found out that all the AP,CP,CS ended with MK2. But on the phone box, the S/W version ended in MF3. So I don't know if I have MF3 or MK2 firmware version.
When I use the code *#197328640#. I cannot see the #6 Network Unlock screen. So I guess it's hidden from me.
Sorry for all these questions. I am a newbie at this.
Click to expand...
Click to collapse
Looks like you have mk2 firmware. Your phone came with mf3 but you must have taken an ota update to mk2. That's pretty normal.
Related
I want to know what the best method is for unlocking my Galaxy S4 SGH-1337 MF3 build Currently running on the airvoice network. I do NOT have an AT&T account but should I still give them a call and ask for an unlock code? or use an unlocking service? also from my understanding there is no sim unlock method for the MF3 build currently.
Thanks in advance!
Drake9897 said:
I want to know what the best method is for unlocking my Galaxy S4 SGH-1337 MF3 build Currently running on the airvoice network. I do NOT have an AT&T account but should I still give them a call and ask for an unlock code? or use an unlocking service? also from my understanding there is no sim unlock method for the MF3 build currently.
Thanks in advance!
Click to expand...
Click to collapse
If you pay full price, give them a call and they might give you the code.
House M.D. said:
If you pay full price, give them a call and they might give you the code.
Click to expand...
Click to collapse
So I'm screwed essentially?
Drake9897 said:
So I'm screwed essentially?
Click to expand...
Click to collapse
First, unlocking the sim card is not related to the version of your phone.
So if you bought it from At&t with full price, some of them they will tell you to wait 90 days before asking for the unlocking code.
If you bought it from someone, ask the previous owner to call them and to ask for the unlocking code. Otherwise, use google, and try your luck.
House M.D. said:
First, unlocking the sim card is not related to the version of your phone.
So if you bought it from At&t with full price, some of them they will tell you to wait 90 days before asking for the unlocking code.
If you bought it from someone, ask the previous owner to call them and to ask for the unlocking code. Otherwise, use google, and try your luck.
Click to expand...
Click to collapse
Yeah I'm screwed. Ugh this dang MF3 update ;-;
Drake9897 said:
Yeah I'm screwed. Ugh this dang MF3 update ;-;
Click to expand...
Click to collapse
are you talking about unlocking the phone to works with other carriers? yes you can on any version.
or unlocking the bootloader so you can use other custom roms? is yes, then you can't. only roots.
House M.D. said:
are you talking about unlocking the phone to works with other carriers? yes you can on any version.
or unlocking the bootloader so you can use other custom roms? is yes, then you can't. only roots.
Click to expand...
Click to collapse
I'm talking for other carriers. and I tried the *#0011# method and the other one witht the long string of numbers I cant remember but it never goes to the menu to let me choose [1]UMTS.
free unlock method has been known to screw people's phones up. There are several warnings throughout that thread the mention it.
Just go with the options that I mentioned, or use google, such as "Auction website" they do some kind of these service I guess.
Actually, on the AT&T MDL and MDB firmwares you were able to sim unlock it through service menu:
http://forum.xda-developers.com/showthread.php?t=2282683
http://gs4.wonderhowto.com/how-to/c...y-s4-so-you-can-use-another-sim-card-0148110/
MF3 blocked this, so the only way you can get your phone sim unlocked with the update is using ebay or cellunlocker but at a price.
haremmon said:
Actually, on the AT&T MDL and MDB firmwares you were able to sim unlock it through service menu:
http://forum.xda-developers.com/showthread.php?t=2282683
http://gs4.wonderhowto.com/how-to/c...y-s4-so-you-can-use-another-sim-card-0148110/
MF3 blocked this, so the only way you can get your phone sim unlocked with the update is using ebay or cellunlocker but at a price.
Click to expand...
Click to collapse
Yeah that's what I thought the case was. Oh well, back to trying to trade my At&t S4 for the Verizon version. Swappa is such a drag.
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
Hello all,
I've read this http://forum.xda-developers.com/showthread.php?t=2291589 inside and out, but I can't do it! I've asked questions, and even PMed members that were looking for the same solution, and nada.
My phone is brand new and I need it to work for Wind Mobile in Canada. It's running 4.3, with MK2 baseband.
I can't even root it properly, apparently this MK2 baseband is super locked down.
I'll be more than happy to pay 30 bucks via PayPal for anyone who can help me unlock the AWS on this phone.
I've already unlocked the actual phone, I just need the AWS.
MetaLRasaM said:
Hello all,
I've read this http://forum.xda-developers.com/showthread.php?t=2291589 inside and out, but I can't do it! I've asked questions, and even PMed members that were looking for the same solution, and nada.
My phone is brand new and I need it to work for Wind Mobile in Canada. It's running 4.3, with MK2 baseband.
I can't even root it properly, apparently this MK2 baseband is super locked down.
I'll be more than happy to pay 30 bucks via PayPal for anyone who can help me unlock the AWS on this phone.
I've already unlocked the actual phone, I just need the AWS.
Click to expand...
Click to collapse
First off, can you provide a little more information about your phone?
Your on the MK2 baseband but on what model? I337, I337M,etc?
Lastly, MK2 isn't "locked down" unless you mean the bootloader portion.
From here we might be able to form a solution.
NighthawkXL said:
First off, can you provide a little more information about your phone?
Your on the MK2 baseband but on what model? I337, I337M,etc?
Lastly, MK2 isn't "locked down" unless you mean the bootloader portion.
Click to expand...
Click to collapse
Hello,
Sorry, the model is ATT S4, which is SGH-I337.
Well, I tried three different methods to root it, and none of them worked properly. I'm not that technically gifted, especially with Android, but those rooting apps were pretty much plug and click, and still the phone wasn't rooted. My researched said I need to safetrap it, and with that downgrade the baseband, and then I can enable the AWS, but I honestly wasn't able to any of it.
If anyone is interested, I can even setup a TeamViewer or something. Just tell me which files to download, and should be set.
MetaLRasaM said:
Hello,
Sorry, the model is ATT S4, which is SGH-I337.
Well, I tried three different methods to root it, and none of them worked properly. I'm not that technically gifted, especially with Android, but those rooting apps were pretty much plug and click, and still the phone wasn't rooted. My researched said I need to safetrap it, and with that downgrade the baseband, and then I can enable the AWS, but I honestly wasn't able to any of it.
If anyone is interested, I can even setup a TeamViewer or something. Just tell me which files to download, and should be set.
Click to expand...
Click to collapse
Do you have Skype? From what I've read your need to root, install Safestrap, downgrade your modem (not baseband) to MF3. I can walk you through the process relatively simple.
NighthawkXL said:
Do you have Skype? From what I've read your need to root, install Safestrap, downgrade your modem (not baseband) to MF3. I can walk you through the process relatively simple.
Click to expand...
Click to collapse
I do have Skype. PM me your ID please. Let's do this!
MetaLRasaM said:
I do have Skype. PM me your ID please. Let's do this!
Click to expand...
Click to collapse
PM sent, awaiting invite.
NighthawkXL said:
PM sent, awaiting invite.
Click to expand...
Click to collapse
He helped me to get it to work!! Paid and all. Worth every dollar.
Thanks again!
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!
OK, I just come across an S4 SGH-i337M running 5.0.1 locked to Bell. Searching Google is fairly mind boggling as everyone has their own method. In my situation, I'm pretty sure I have come to this solid conclusion. Two options only,,
1. Buy unlock code or
2. Downgrade to at least 4.4.2 and use the hidden codes method.
Can #2 be done safely? Some sites say if you do try downgrade from Lollipop to KK, it will brick. What would a safe procedure be if possible.
Thanks
http://forum.xda-developers.com/showpost.php?p=64978235&postcount=713
Substitute Bell firmware for Fido firmware.
audit13 said:
http://forum.xda-developers.com/showpost.php?p=64978235&postcount=713
Substitute Bell firmware for Fido firmware.
Click to expand...
Click to collapse
Thanks, seen this but wasn't sure. I assume that flashing back to Lollipop isn't necessary if one chooses to stay at 4.4.2 for a while. Heard some comments about increased battery drainage etc. on Lollipop.
Will try this once the new charge port shows up and I can replace.
The hidden codes method won't work, unfortunately. Let me know if you are successful.
Thanks.
audit13 said:
http://forum.xda-developers.com/showpost.php?p=64978235&postcount=713
Substitute Bell firmware for Fido firmware.
Click to expand...
Click to collapse
audit13 said:
The hidden codes method won't work, unfortunately. Let me know if you are successful.
Thanks.
Click to expand...
Click to collapse
Thanks, will do. Hopefully will be getting to it tonight. Here's one of the confusing things I was talking about. Been doing alot of reading, and in your instructions, you install TWRP to flash SuperSU and such. Then, reading elsewhere, I see this "SAFESTRAP IS THE ONLY RECOVERY WE CAN USE!
Don't even try flashing another one.", posted in a thread about AT&T SGH-I337 model. Well, here it is, halfway down in the second post, bolded in red. http://forum.xda-developers.com/showthread.php?t=2616221 Just trying to get things figured out, it's been a couple years since I last played with the Galaxy, just getting back into it now.
The AT&T version of the s4 is the Sgh-i337 and, if it was running stock 5.01, the bootloader would be locked and twrp cannot be used.
The Canadian version of the s4 has the letter "m" at the end of the model number and the bootloader is not locked which allows the installation of twrp and custom ROMs that are not based on a tw kernel.
audit13 said:
The hidden codes method won't work, unfortunately. Let me know if you are successful.
Thanks.
Click to expand...
Click to collapse
Thanks, this method seemed to work,,just one problem I overlooked, but I just assumed this phone would work on AWS1700,,wrong lol. I was reading the 141 page thread and there seems to be a few different methods for doing this. With my S3, I only had to flash the NV and run a script on every boot as the nv rewrite would not stick. Is this so as well with the s4 too,,or is there a method to make it a permanent stay. I didn't plan on updating to 5.0.1 quite yet,,but will do if needed. Do you no of a recommended/preferred method for this?
Did you test the phone with another sim card? Hopefully, you will not be prompted to enter a network unlock code.
For AWS, I'm not sure what needs to be done as I am using a Telus s4 on Bell.
audit13 said:
Did you test the phone with another sim card? Hopefully, you will not be prompted to enter a network unlock code.
For AWS, I'm not sure what needs to be done as I am using a Telus s4 on Bell.
Click to expand...
Click to collapse
It was locked with Bell, my provider is Eastlink,,I finally got the AWS1700 band working, but kept losing it when the phone went to sleep. Updated to the NE1 modem, then had to flash the AWS again and all seems to be working fine. Hopefully it holds up. Thanks for everything.
Glad it is all working. We're all here to help and learn from each other.