[Q] AT&T provided SIM unlock code not working - KNOX issue? - AT&T Samsung Galaxy Note II

I am selling my SGH-i317, but am unable to SIM unlock the phone with the unlock code that AT&T provided for the IMEI.
When pop in a T-Mobile SIM, the phone asks me for an unlock code. But it refuses to accept the code with message: "Network unlock request unsuccessful".
What could be causing this?
Here's a history of my phone:
1. I have used it with a custom ROM, so the KNOX counter is tripped.
2. I was on a rooted UCUBMK6 ROM with TWRP recovery.
3. I used Triangle Away and unrooted.
4. I then used Odin to flash back to UCALJ2 with Stock Recovery (unrooted), using this tar file: KIES_HOME_I317UCALJ2_I317ATTALJ2_215287_REV04_user_low_ship.tar.md5
5. This gave me stock recovery and stock ROM. KNOX still tripped, custom ROM counter=1
6. I then used Odin to flash the UCUCNE5-Stock-No recovery. I assumed that the stock recovery from the UCALJ2 ROM would work as a "match" (?).
7. Device now reports baseband version I317UCUCNE5, build number KOT49H.I317UCUCNE5. Kernel 3.0.31-1728680. KNOX still tripped, Custom ROM counter=1.
But the unlock is a no-go. What gives??

Have you tried the before method?
http://galaxynote2root.com/galaxy-note-2-tutorials/how-to-unlock-sim-for-free-on-gsm-galaxy-note-2/
Sent from my SGH-I317 using XDA Free mobile app

ShrekOpher said:
Have you tried the before method?
http://galaxynote2root.com/galaxy-note-2-tutorials/how-to-unlock-sim-for-free-on-gsm-galaxy-note-2/
Click to expand...
Click to collapse
No..thanks for the tip. My menu doesn't show that option, probably removed in later ROM versions. But I found this YouTube video that suggests flashing back to an older modem, then following that method, then flashing back. Worth a try...will give that a go.

This helped me unlock my device....
amfractal said:
It was probably mine. I had the same issue and I got my code from cellunlocker.net.
I was on SlimRom and it was not working. I finally went back to the official rom for one final try and it worked.
This is what I did. I'm not sure if just trying the unlock code would've worked but I did follow these steps (it's a bit weird since you don't actually change anything, maybe it forces the phone to refresh something.)
Just make sure you are on official ROM or it won't work (I tried only the code with the SlimROM and it did not work).
After unlocking I went back to SlimRom and then CM and it was always unlocked.
1. Make sure that the phone PROMPTS for the code with a NON accepted sim card and that your IMEI is correct by dialing *#06#
a. Go to the Dial pad and dial *#197328640#
b. Please click on number [1] UMTS > [1] Debugging screen > [8] Phone Control > [6] NETWORK LOCK
c. You will see 3 options
d. Please click on number [1] Perso Sha256 INFO, the screen will change slightly
e. Please hit the MENU button then when the menu pops up please carefully hit BACK to return to the previous screen
f. Next Please click on number [2] Perso Sha256 ON, the screen will change again to a one line message
g. Restart the phone on the screen by holding the power button and click RESTART
h. When the phone prompts for the unlock code simply enter the unlock code provided to you
i. Your phone is now permanently unlocked!
Click to expand...
Click to collapse
dubluv1 said:
This method worked for me.
FYI- my situation (maybe it'll help others): I bought a T-Mobile prepaid SIM card for my spare GS3 just to see if it would work. I contacted AT&T and they provided me a SIM unlock code (took about 2 days). However, it did not work! 5 days later, and they still haven't figured it out! I decided to take matters into my own hands. After many many hours of research and trying all sorts of methods I believe whats happening its that people are trying the dial pad method and setting their Perso Sha256 to "OFF". If you've done that then unlock codes will not register correctly... So get and unlock code, then set it back to ON following the steps above. Hopefully that helps others..
[Stock rooted 4.3 OTA I747 AT&T US]
Click to expand...
Click to collapse

mexigga said:
This helped me unlock my device....
Click to expand...
Click to collapse
Sweeeet. That did the trick. Thank you!!

mobidutch said:
Sweeeet. That did the trick. Thank you!!
Click to expand...
Click to collapse
Great to hear!

Related

Unlock t889 issue - SOLVED

SOLVED:::::::::: Thanks to Pirobo_Colmbino
I recently was issued an official unlock code for my t889 from tmo. I tried to unlock the device using an ATT sim and got the "network unlock unsuccessful" message. Apparently, I'm a dunce and didn't read AND follow the instructions properly and entered the wrong code more than once. Now I am told that my device is PERMANENTLY LOCKED and cannot be unlocked. Is this correct? Is there a way to fix it? HELLLP
guardm said:
I recently was issued an official unlock code for my t889 from tmo. I tried to unlock the device using an ATT sim and got the "network unlock unsuccessful" message. Apparently, I'm a dunce and didn't read AND follow the instructions properly and entered the wrong code more than once. Now I am told that my device is PERMANENTLY LOCKED and cannot be unlocked. Is this correct? Is there a way to fix it? HELLLP
Click to expand...
Click to collapse
Hi, im not sure if this is gonna help, but the way I unlock mine was with the help of a simple youtube search. Im new her so i cant post a link.
Steps: dial *#197328640#
step 1: umts
step 2: debug screen
step 3: phone control
step 4 network lock
step 5: perso sha256 off ( wait 30 seconds than hit the menu key and hit back)
step 6: nw lock nv data initialliz (wait about 1 minute and exit.
reboot and that should be it.
Try that out and if it does not work "meaning you dont see all of the options" all you have to do is downgrade to an older version of Stock " yes you will have to root again but it gets the job done.
If it helps dont forget to hit thanks.
Pirobo_Colombino said:
Hi, im not sure if this is gonna help, but the way I unlock mine was with the help of a simple youtube search. Im new her so i cant post a link.
Steps: dial *#197328640#
step 1: umts
step 2: debug screen
step 3: phone control
step 4 network lock
step 5: perso sha256 off ( wait 30 seconds than hit the menu key and hit back)
step 6: nw lock nv data initialliz (wait about 1 minute and exit.
reboot and that should be it.
Try that out and if it does not work "meaning you dont see all of the options" all you have to do is downgrade to an older version of Stock " yes you will have to root again but it gets the job done.
If it helps dont forget to hit thanks.
Click to expand...
Click to collapse
Thanks for your reply. I tried this before and all the worked until it comes to step 5. When I go back, the item "nw lock nv initialliz" (in your step 6), isn't there to select. Perhaps downgrading is the answer?
The part I don't seem to understand is that TMO says because I entered the wrong code multiple times, I lost the ability to unlock. Does this method overwrite or fix the permanent lock they spoke of?
guardm said:
Thanks for your reply. I tried this before and all the worked until it comes to step 5. When I go back, the item "nw lock nv initialliz" (in your step 6), isn't there to select. Perhaps downgrading is the answer?
The part I don't seem to understand is that TMO says because I entered the wrong code multiple times, I lost the ability to unlock. Does this method overwrite or fix the permanent lock they spoke of?
Click to expand...
Click to collapse
Yeah if u dont see it you must downgrade.
and as far as the overwrite im not sure. sorry
Pirobo_Colombino said:
Yeah if u dont see it you must downgrade.
and as far as the overwrite im not sure. sorry
Click to expand...
Click to collapse
Thanks I will try it. Just gotta go find the downgrade rom.
Pirobo_Colombino said:
Yeah if u dont see it you must downgrade.
and as far as the overwrite im not sure. sorry
Click to expand...
Click to collapse
You, sir are correct. I was able to downgrade via Odin, but I lost some functions (which didn't matter since it was only temporary). I performed the steps you provided and tested with an ATT sim. It worked. Then I updated to current stock ROM and rooted. Tested again with ATT sim and my device is still unlocked. Thanks for your help. I hope anyone else who runs into this issue, can find this post and learn like I did.
guardm said:
You, sir are correct. I was able to downgrade via Odin, but I lost some functions (which didn't matter since it was only temporary). I performed the steps you provided and tested with an ATT sim. It worked. Then I updated to current stock ROM and rooted. Tested again with ATT sim and my device is still unlocked. Thanks for your help. I hope anyone else who runs into this issue, can find this post and learn like I did.
Click to expand...
Click to collapse
What Version were you on when you could not unlock it. And what version did you flash?
guardm said:
You, sir are correct. I was able to downgrade via Odin, but I lost some functions (which didn't matter since it was only temporary). I performed the steps you provided and tested with an ATT sim. It worked. Then I updated to current stock ROM and rooted. Tested again with ATT sim and my device is still unlocked. Thanks for your help. I hope anyone else who runs into this issue, can find this post and learn like I did.
Click to expand...
Click to collapse
Im glad i could help. :good:
gedster314 said:
What Version were you on when you could not unlock it. And what version did you flash?
Click to expand...
Click to collapse
I'm not so sure it had much to do with the version, although I am no expert dev. Mind you, this happened in a short period of time.
TIMELINE:
I was on The stock (shipped) rom when I first bought my GN2. I got it new and broke the seal on the box. Upon opening and starting the device, I got an OTA update (don't remember the build but not the LL4 ota). I started doing some reading on XDA, since like most, I like tinkering and tweaking. Not long after that (Mid Jan 2013) I got the OTA from TMO that had "minor fixes and security changes". This is when I read somewhere on XDA that it is not recommended that we accept the OTA update. But it was too late; I had already done it. I came across the unlock instructions posted earlier in this thread but I couldn't get pass all the steps. A few days later I rooted via ROOT66_TMO_UVALL4 rom, which gave me access to SuperUser. [I have this ZIP saved if anyone wants it and wants to show me how share it.] Then I got an official unlock code from TMO.
I followed these instructions that TMO sent me with the unlock code
Thank you for taking the time to contact T-Mobile. Below you will see the Instructions for unlocking your Samsung device.
Please be advised a non T-Mobile SIM card MUST be used to unlock this device.
1. Insert a NON T-Mobile SIM & turn Device on
2. The Device will automatically prompt you to enter code into an empty field.
3. Click/Tap in the empty field above the "Unlock & Dismiss" options (this will display a key pad on the screen).
4. Using the key pad input the Unlock Code provided by T-Mobile.
5. Press the Back button to remove the keyboard from screen.
6. Click/Tap the "Unlock" option; handset should display "Network Unlock Successful".
Please note that if you are unlocking a flip device please use steps 1, 2, 3 and 6.
Click to expand...
Click to collapse
In my haste, I didn't follow the instruction EXACTLY as written. Somehow I managed to enter the unlock code while using my TMO sim and not the "NON TMO sim". When I did this, I got the message in step 6. I thought I was good from here. I tried an ATT sim a few days later to verify but it asked me again for the sim unlock code but the operation was unsuccessful. I tried entering the donor phone's screen unlock code a few times as well as zeros and 1234 and again failed. I tried again with another donor phone with the same result. TMO sent me a second unlock code which also failed. I did tell them that I had done the OTA update and the rep told me it shouldn't matter. I did not tell them I was rooted stock though. The rep told me that due to entering the wrong code multiple times, the device went into "security lockout" and could not be unlocked. I read into several threads and posts and could not find the answer, Thus my original post. I down graded my Rom to T889UVALJ1, successfully performed the unlock procedure posted above (NOT TMO official), and re-installed the ROOT66 rom. Everything is now working perfectly. I put in the ATT sim and it pops right up as ATT.
The real question now is, does the OTA issued by TMO block the unlock exploit and is that what they refer to when they mention "security features"?
Thank for Solving this issue goes to user Pirobo_Colombino see post 2
I encountered the same problem couple weeks ago. The problem is not caused by the TMO firmware update but rather the fact that you tried to unlock the phone using the hack you found on the internet. Per instruction on the free unlock hack online, you selected "PERSO SHA256 OFF", this step is what prevented the phone from being successfully unlocked with TMo unlock code. In order for the TMO unlock code to work, you have to select "PERSO SHA256 ON", then follow the instruction steps to unlock using TMO code. That is what I did and it worked for me. Hope this helps anyone who will run into this problem in the future. Cheers :good:
akdnj88 said:
I encountered the same problem couple weeks ago. The problem is not caused by the TMO firmware update but rather the fact that you tried to unlock the phone using the hack you found on the internet. Per instruction on the free unlock hack online, you selected "PERSO SHA256 OFF", this step is what prevented the phone from being successfully unlocked with TMo unlock code. In order for the TMO unlock code to work, you have to select "PERSO SHA256 ON", then follow the instruction steps to unlock using TMO code. That is what I did and it worked for me. Hope this helps anyone who will run into this problem in the future. Cheers :good:
Click to expand...
Click to collapse
Interesting....... This is the first I've heard of this. Not to say this info is not out there; I just never came across it. I do hope that this reaches the poster of those links (there are quite a few) as a cautionary note. Perhaps someone will post a how-to compiled with all these tidbits included.
After the sim unlock, sim card in HK still also can use it?
Yat_Fung said:
After the sim unlock, sim card in HK still also can use it?
Click to expand...
Click to collapse
I cannot say it will work with HK sim since I have NO experience with that card or even overseas. However, I can say that ATT&T sim works every time I put it in the phone. Have you ever used a HK sim in another phone? If you did and it worked, I don't see why it wouldn't work in this one.
Provide link?
Pirobo_Colombino said:
Hi, im not sure if this is gonna help, but the way I unlock mine was with the help of a simple youtube search. Im new her so i cant post a link.
Steps: dial *#197328640#
step 1: umts
step 2: debug screen
step 3: phone control
step 4 network lock
step 5: perso sha256 off ( wait 30 seconds than hit the menu key and hit back)
step 6: nw lock nv data initialliz (wait about 1 minute and exit.
reboot and that should be it.
Try that out and if it does not work "meaning you dont see all of the options" all you have to do is downgrade to an older version of Stock " yes you will have to root again but it gets the job done.
If it helps dont forget to hit thanks.
Click to expand...
Click to collapse
Could you provide the links to old versions of stock because Ive been having some trouble rooting back to a baseband before vall4
Spartan2x7 said:
Could you provide the links to old versions of stock because Ive been having some trouble rooting back to a baseband before vall4
Click to expand...
Click to collapse
A quick forums search shows this
http://forum.xda-developers.com/showthread.php?t=2102380
You should find what you need here. If it helps hit the thanks button.
akdnj88 said:
I encountered the same problem couple weeks ago. The problem is not caused by the TMO firmware update but rather the fact that you tried to unlock the phone using the hack you found on the internet. Per instruction on the free unlock hack online, you selected "PERSO SHA256 OFF", this step is what prevented the phone from being successfully unlocked with TMo unlock code. In order for the TMO unlock code to work, you have to select "PERSO SHA256 ON", then follow the instruction steps to unlock using TMO code. That is what I did and it worked for me. Hope this helps anyone who will run into this problem in the future. Cheers :good:
Click to expand...
Click to collapse
Thank you so much!! Tmobile sent me the code and I was having problems unlocking my note ll till I read this info.
Samsung Tmobile
handrade773 said:
Thank you so much!! Tmobile sent me the code and I was having problems unlocking my note ll till I read this info.
Click to expand...
Click to collapse
Need help Bad.
Have a tmobile sgh-t889. Tmobile sent me an network unlock pin and entered it. Says network unlock successfull. but still no signal. restarted the device and it again asked for a network pin. did the step again and stil the same..
What could be wrong? BTW its a 4.1.1.
Pls help.
junedar said:
Need help Bad.
Have a tmobile sgh-t889. Tmobile sent me an network unlock pin and entered it. Says network unlock successfull. but still no signal. restarted the device and it again asked for a network pin. did the step again and stil the same..
What could be wrong? BTW its a 4.1.1.
Pls help.
Click to expand...
Click to collapse
Latest OTA is 4.1.2
I'm not sure how you are trying to do your unlock. In order to use the unlock method detailed in post #2, I needed to downgrade my firmware. The method in post 2 WILL NOT work after the OTA update.
If you are using the instructions from your carrier, follow the instructions they emailed you EXACTLY. If you have issues with the carrier instructions, contact them; It's up to them to give you proper tech support on THEIR product.
As I understand, the "hack" method is for mostly intended those who have modded/altered/rooted/other-than-stock devices. Whichever method you use, be aware, YOU RUN THE RISK OF BRICKING YOUR DEVICE. That being said, research your steps BEFORE you end up with a dead device.
I AM NOT a developer nor claim to be an expert at any of these methods. However I have been modding my devices for years by reading and researching XDA. I have had success and failures and so will you. The best advice I can offer is to continue reading the posts CAREFULLY and be patient.
I hope this helps
guardm said:
Latest OTA is 4.1.2
I'm not sure how you are trying to do your unlock. In order to use the unlock method detailed in post #2, I needed to downgrade my firmware. The method in post 2 WILL NOT work after the OTA update.
If you are using the instructions from your carrier, follow the instructions they emailed you EXACTLY. If you have issues with the carrier instructions, contact them; It's up to them to give you proper tech support on THEIR product.
As I understand, the "hack" method is for mostly intended those who have modded/altered/rooted/other-than-stock devices. Whichever method you use, be aware, YOU RUN THE RISK OF BRICKING YOUR DEVICE. That being said, research your steps BEFORE you end up with a dead device.
I AM NOT a developer nor claim to be an expert at any of these methods. However I have been modding my devices for years by reading and researching XDA. I have had success and failures and so will you. The best advice I can offer is to continue reading the posts CAREFULLY and be patient.
I hope this helps
Click to expand...
Click to collapse
Yep I did in detail what has been said in post #2. ( By default my device is 4.1.1. )
When it didnt worked, I asked tmobile for the network pin. I also followed their instruction thoroughly, after i entered the pin they gave, it gave the message network unlock successfull. I noticed that there still was no signal so i restarted my device. However it still keep asking me for a network pin. When I asked them about this, they just said that they dont really know why.
I also did a factory reset.
Wonder what could be the issue. Any thoughts?
junedar said:
Yep I did in detail what has been said in post #2. ( By default my device is 4.1.1. )
When it didnt worked, I asked tmobile for the network pin. I also followed their instruction thoroughly, after i entered the pin they gave, it gave the message network unlock successfull. I noticed that there still was no signal so i restarted my device. However it still keep asking me for a network pin. When I asked them about this, they just said that they dont really know why.
I also did a factory reset.
Wonder what could be the issue. Any thoughts?
Click to expand...
Click to collapse
I would call Tmobile again and talk to someone else. Maybe ask for tier 2 support. Many times, the first person you get is a low level customer support person that only knows what the computer screen shows them unfortunately.

[Q] Trouble with SIM unlocking T-Mobile Samsung Galaxy S III

Hello,
I've had a long saga of failures trying to unlock my T-Mobile Samsung Galaxy S III (aka sgh-t999). Firstly I started by trying to convince T-Mobile to give me the code but they gave be the bureaucratic cold shoulder for a year. After threatening to cancel they finally produced an incorrect SIM unlock code for me from Samsung. I tried it and it failed.
I then took my phone to one of those shady SIM unlock places in London and paid them to do it. After a day of waiting they sent me an email of the same, incorrect SIM unlock code which again failed to work.
I decided to try a common method I found all over tutorials that works as follows.
Go to the dialer
*#197328640#
[1] UMTS
[1] DEBUG SCREEN
[8] PHONE CONTROL
[6] NETWORK LOCK
[3] PERSO SHA256 OFF
Wait 30 seconds then press Menu and back
[4] NW Lock NV Data INITIALLIZ
Wait 60 seconds then reboot
Sadly no matter what I do that last menu option simply does not exist on my phone.
This fails on Android 4.1.2 which was on my phone when I started so I recently got a stock 4.1.1 ROM which the tutorials said was necessary. So I rooted my phone, installed ClockworkMod recovery so now when I go into recovery mode I get that CWM. I then used that to install a pre-rooted 4.1.1 build and tried to do the above SIM unlock method and it sadly it failed again in the exact same way. Option 4, NW Lock NV Data INITIALLIZ does not exist.
Does anyone know of anything I can do to SIM unlock my phone? Anyone know of any specific links to firmware and or OS ROM images that they know installs an OS that this works on? Are there apps one can run as root that will unlock? Remember I can't use anything that goes through Samsung because it ends up being incorrect.
Thanks for the help.
-mike
Your rom version has nothing to do with it. Your modem must be 4.1.1, but it wont work if youve ever updated to 4.3.
The code you got is not wrong. Especially if you got the same one from two sources. Its based on your imei so every decice has its own unique unlock code.
There's a thread in AT&T forums where someone posted a way to get it to work if having problems. Its at the end of an unlock thread in the General section I think. See if you can find and try that.
Hope it helps.
Sent from my SGH-T999 using Tapatalk
DocHoliday77 said:
Your rom version has nothing to do with it. Your modem must be 4.1.1, but it wont work if youve ever updated to 4.3.
Click to expand...
Click to collapse
Can anyone explain to me what the 4.3 update does that stops this unlock proceeding? Surely the update can be removed.

sim unlock note 2 att (i317) any firmware (4.1.2-newer) w/o data loss

when updating past 4.3 you aquire the updated bootloader and can no longer "safely" downgrade to 4.1.1 to unlock this phone. however if you:
1) Root the phone and allow SU to disable knox
2) Install custom recovery (TWRP, CWM, OR OTHER)
3) Boot into recovery and flash the atti317ucalj2modemfixed.zip modem
4) After reboot you can use this method to unlock:
(From this thread http://forum.xda-developers.com/show....php?t=2014982)
Just dial the following keys *#197328640#
Main Menu > [1] UMTS > [1] Debug Screen > [8] Phone Control > [6] Network Lock > Options [3]Perso SHA256 OFF > (after choosing this option, wait about 30 seconds, then go back one step by pressing the Menu button then select Back, now you are in [6] Network Lock then choose [4] NW Lock NV Data INITIALLIZ ..... wait for a minute then reboot your phone... enjoy your unlocked phone!!!
5) Reboot recovery and flash the newest modem I317_ucucne5_modem.zip
6) Reboot again and enjoy your fully unlocked 4.4 note 2 att with out losing your data or bricking your phone
************* non at&t notes try using earlier versions of your own stock modems then updating after unlocking ************ @umaza has infomed me this method Seems to have worked for 4.4.2 i317m Koodo, just downgrade to the Rogers Modem,
Go here (http://forum.xda-developers.com/showthread.php?t=1987541) , go to Section 3, and go to Rogers, and get "I317MVLALJ2....uploaded by DAGr8 (Direct Link)"
tophkr (Jason Steedley)
With all due respect to OP and his lack of posts (like I have room to talk, right? ) can anyone else verify this as working before I attempt this? I need to unlock my phone and would rather do this than flash 4.1.1 (and trip Knox) and then reflash to a 4.4.2 ROM.
tophkr said:
when updating past 4.3 you aquire the updated bootloader and can no longer "safely" downgrade to 4.1.1 to unlock this phone. however if you:
1) Root the phone and allow SU to disable knox
2) Install custom recovery (TWRP, CWM, OR OTHER)
3) Boot into recovery and flash the atti317ucalj2modemfixed.zip modem
4) After reboot you can use this method to unlock:
(From this thread http://forum.xda-developers.com/show....php?t=2014982)
Just dial the following keys *#197328640#
Main Menu > [1] UMTS > [1] Debug Screen > [8] Phone Control > [6] Network Lock > Options [3]Perso SHA256 OFF > (after choosing this option, wait about 30 seconds, then go back one step by pressing the Menu button then select Back, now you are in [6] Network Lock then choose [4] NW Lock NV Data INITIALLIZ ..... wait for a minute then reboot your phone... enjoy your unlocked phone!!!
5) Reboot recovery and flash the newest modem I317_ucucne5_modem.zip
6) Reboot again and enjoy your fully unlocked 4.4 note 2 att with out losing your data or bricking your phone
tophkr (Jason Steedley)
Click to expand...
Click to collapse
Thanks! It worked perfectly on 4.1.2 to 4.3 DN3 ROM. ?
this method has now been tested personally on many att note 2's
Freshenstein said:
With all due respect to OP and his lack of posts (like I have room to talk, right? ) can anyone else verify this as working before I attempt this? I need to unlock my phone and would rather do this than flash 4.1.1 (and trip Knox) and then reflash to a 4.4.2 ROM.
Click to expand...
Click to collapse
i hope others will try this and post their progress, but just as a personal reference in my repair/modification store i have now successfully unlocked 16 note 2's that i have bought and customer's phones. hope this information helps.
The information helped a lot when the other guy figured it out and posted it a year ago.
ok that didnt work for me i get an error, nothing happens til I hit send on the dialpad, then I get this connection problem or invalid MMI code
rangercaptain said:
The information helped a lot when the other guy figured it out and posted it a year ago.
Click to expand...
Click to collapse
the other posted method works for previous software, the method has to be tweaked to work on 4.1.2 and above. im guessing people arn't reading that part of the post just assuming this is the same unlock method that use to work with out flashing the modem. they removed the #4 prompt in network lock on the newer modems so you cant manually unlock them.
jbach44 said:
ok that didnt work for me i get an error, nothing happens til I hit send on the dialpad, then I get this connection problem or invalid MMI code
Click to expand...
Click to collapse
send me your model, current version, baseband etc and i will help you figure it out. you shouldn't hit send in the dialpad to access the hidden menus. apon hitting the last # it directly loads the hidden menu.
I'm running an AT&T Note 2 (SGH-I317) running Ditto Rom 3 v2, baseband I317ucucne5
Hi I bought an att note 2 with 4.4.2 will this method work.
baseband
i317ucucnj1
kernel
3.0.31-1728680
build
kot49h.i317ucucnj1
works
I just tried this on my note 2 with 4.4.2 and it worked perfectly. Thank you.
Would this work on an Canadian sgh-i317m?
I am going to try this on my i317m (Koodo) Dn3 Rom, will post results soon
Edit:
Didn't work, when I put numbers on dialpad, it doesn't go right away, I then press the call button and it says "Mobile network not available"
Should I try going back to Stock Rom, then trying it? Will it stay Unlocked if I restore a previous EFS?
Edit2:
Went back to stock 4.4.2 Koodo, and did the following, but when I put numbers on dialpad, it goes through but everything is blank, like there is no menu to choose from
Did you downgrade the modem/baseband first before using the dial pad? This menu is only accessible in the older one. Also I'm not sure of the compatibility of the modem with a phone other than the I317 att. Other variants probably have a different modem and you'll have to find an older version of yours to flash then flash back to current.
tophkr said:
Did you downgrade the modem/baseband first before using the dial pad? This menu is only accessible in the older one. Also I'm not sure of the compatibility of the modem with a phone other than the I317 att. Other variants probably have a different modem and you'll have to find an older version of yours to flash then flash back to current.
Click to expand...
Click to collapse
Yes, I downgraded to the one you have provided, and surprisingly it was not accessible, but on my stock modem, the menu is accessible but doesn't work.
That was also my thought, time to modem hunt!
tophkr said:
Did you downgrade the modem/baseband first before using the dial pad? This menu is only accessible in the older one. Also I'm not sure of the compatibility of the modem with a phone other than the I317 att. Other variants probably have a different modem and you'll have to find an older version of yours to flash then flash back to current.
Click to expand...
Click to collapse
Seems to have worked for 4.4.2 i317m Koodo, just downgrade to the Rogers Modem,
Go here, go to Section 3, and go to Rogers, and get "I317MVLALJ2....uploaded by DAGr8 (Direct Link)"
Thanks @tophkr, @Bajanman, and @DAGr8
umaza said:
Seems to have worked for 4.4.2 i317m Koodo, just downgrade to the Rogers Modem,
Go here, go to Section 3, and go to Rogers, and get "I317MVLALJ2....uploaded by DAGr8 (Direct Link)"
Thanks @tophkr, @Bajanman, and @DAGr8
Click to expand...
Click to collapse
i'm glad you found a working modem that is compatible with your device and the process still works.
Worked !
Thanks for the instructions. I can confirm that they did work for me on 4.4.2 DS NE5 TW ROM
Will this work on any of the custom lollipop ROMs for the Canadian version note 2?
Sent from my GT-N7105 using XDA Free mobile app
Dumb question:
Do I need a SIM installed before attempting this?
Edit: The answer is no

Need help unlocking

I need to unlock my wife's S3 and I got the unlock code from AT&T but when I try to do it, it says unsuccessful. The phone is completely stock not even rooted. Can anyone help cause AT&T is useless?
Does the imei match the imei on the phone's printed label?
Yes it does
When you insert a non-ATT sim, you get the prompt to enter the unlock code? If you do and you enter the code provided by ATT based on the phone's imei, sounds like ATT may have given you the wrong code.
audit13 said:
When you insert a non-ATT sim, you get the prompt to enter the unlock code? If you do and you enter the code provided by ATT based on the phone's imei, sounds like ATT may have given you the wrong code.
Click to expand...
Click to collapse
Yes then it gives me and sim unlock unsuccessful. I am getting sick and tired of sitting on hold with them
I'm not sure if the s3 gives you a limited number of tries to unlock it but I would not attempt more than 2 attempts each day.
I assume you confirmed the imei # with ATT? Is it possible the phone is hard-locked to ATT? Did ATT give you any other codes such as unfreeze codes, PUKs, etc.?
i know you said stock , unrooted. dont you have to be on 4.1.1 to unlock? prob. are, just asking.
err on the side of kindness
What ROM is on your phone? If it is 4.1.1 or 4.1.2, you could try using the free unlock method.
I'm having the same problem here. Received a code from AT&T on Oct 26th and they're still trying to figure out why it doesn't work. Bought the locked phone at BestBuy and never touched it until I tried to use the code they gave me.
ninaviana said:
I'm having the same problem here. Received a code from AT&T on Oct 26th and they're still trying to figure out why it doesn't work. Bought the locked phone at BestBuy and never touched it until I tried to use the code they gave me.
Click to expand...
Click to collapse
What ROM version is on your phone?
audit13 said:
What ROM version is on your phone?
Click to expand...
Click to collapse
I have no idea what that is. The phone runs on Android 4.3 if that helps.
ninaviana said:
I have no idea what that is. The phone runs on Android 4.3 if that helps.
Click to expand...
Click to collapse
If you were on 4.1.1 or 4.1.2 and the code didn't work, you could revert back to stock 4.1.1 and unlock the phone for free. Since you're on 4.3, you can only unlock the phone with an unlock code. Seems strange that the unlock code doesn't work. Did you confirm you phone imei and the imei you submitted to ATT?
audit13 said:
If you were on 4.1.1 or 4.1.2 and the code didn't work, you could revert back to stock 4.1.1 and unlock the phone for free. Since you're on 4.3, you can only unlock the phone with an unlock code. Seems strange that the unlock code doesn't work. Did you confirm you phone imei and the imei you submitted to ATT?
Click to expand...
Click to collapse
Yes, I checked everything. Today I spent almost an hour on the phone with them trying to figure out the problem. They even called Samsung and they didn't know what was wrong either.
ninaviana said:
Yes, I checked everything. Today I spent almost an hour on the phone with them trying to figure out the problem. They even called Samsung and they didn't know what was wrong either.
Click to expand...
Click to collapse
Is it possible that the phone has become hard-locked to ATT due to too many unsuccessful unlocking attempts?
audit13 said:
Is it possible that the phone has become hard-locked to ATT due to too many unsuccessful unlocking attempts?
Click to expand...
Click to collapse
I read that the phone displays a message when that happens, and none has been presented so far... It always asks me for the network unlock code.
Problem solved
To whoever is going through the same trouble. This is not the "unlock it for free" method, for you will need to insert the unlock code
For Samsung Galaxy S3, S4 and Note 2. Device must be updated to the latest firmware.
Phone MUST prompt for the code. This is the "release method" on the phone(s).
a. Go to the Dial pad and dial *#197328640#
b. Click on number [1] UMTS > [1] Debugging screen > [8] Phone Control > [6] NETWORK LOCK
c. You will see 3 options. Click on number [1] Perso Sha256 INFO, the screen will change slightly
e. Hit the MENU button then when the menu pops up carefully hit BACK to return to the previous screen
f. Click on number [2] Perso Sha256 ON, the screen will change again to a one line message
g. Restart the phone on the screen by holding the power button and click RESTART
h. When the phone prompts for the unlock code simply enter the unlock code
END

N910P - I have MSL code but no prompt to unlock? please help

Hi All,
Please help.
Goal:
- unlock N910P for domestic US (I have MSL code from Sprint)
- do not want to root
Details:
- account and phone is paid
- Sprint gave me MSL saying it is my unlock code
- 5.1.1
- has been reset to factory and cleared cache
- I watched a few videos saying that I need to put a different carrier sim in and it will prompt for the MSL code to unlock
- I have tired 4 sim from T-Mobile and AT&T, 2 are working sim from working phone... none will prompt for code
- I tried ##3282# which get me to manual settings but I am not sure if I should mess with it
- invalid sim for T-Mobile and AT&T but works fine for Sprint
- I read that it may work with Kit Kat but I cannot downgrade without root
Thank you all in advance.
Please let us not get into the debate of carriers and GSM/CDMA. I just need help with the unlock portion. Thank you again. :highfive:
SA1GON said:
Hi All,
Please help.
Goal:
- unlock N910P for domestic US (I have MSL code from Sprint)
- do not want to root
Details:
- account and phone is paid
- Sprint gave me MSL saying it is my unlock code
- 5.1.1
- has been reset to factory and cleared cache
- I watched a few videos saying that I need to put a different carrier sim in and it will prompt for the MSL code to unlock
- I have tired 4 sim from T-Mobile and AT&T, 2 are working sim from working phone... none will prompt for code
- I tried ##3282# which get me to manual settings but I am not sure if I should mess with it
- invalid sim for T-Mobile and AT&T but works fine for Sprint
- I read that it may work with Kit Kat but I cannot downgrade without root
Thank you all in advance.
Please let us not get into the debate of carriers and GSM/CDMA. I just need help with the unlock portion. Thank you again. :highfive:
Click to expand...
Click to collapse
You couldnt downgrade to kitkat even if you were rooted. Youre on a locked bootloader.
yup, I concluded that after a few hours of testing... tried several rev of Odin3 and several OEM ROM... all fail to auth... was hoping as last option that root will work but didn't plan for that route...
Are there any options to get the prompt for domestic SIM/carrier unlock? Whether auto or manually?
The only paid unlock service I see for N910P that guarantee it is on eBay... are those trustworthy?
SA1GON said:
yup, I concluded that after a few hours of testing... tried several rev of Odin3 and several OEM ROM... all fail to auth... was hoping as last option that root will work but didn't plan for that route...
Are there any options to get the prompt for domestic SIM/carrier unlock? Whether auto or manually?
The only paid unlock service I see for N910P that guarantee it is on eBay... are those trustworthy?
Click to expand...
Click to collapse
Why not use GalaxyTools to Sim Unlock if you have MSL?
xxSTARBUCKSxx said:
Why not use GalaxyTools to Sim Unlock if you have MSL?
Click to expand...
Click to collapse
From my limited research, I believe it does not support 5.1.1 or requires root or both.
Please correct me if I am wrong.
SA1GON said:
From my limited research, I believe it does not support 5.1.1 or requires root or both.
Please correct me if I am wrong.
Click to expand...
Click to collapse
Requires root.
toenail_flicker said:
Requires root.
Click to expand...
Click to collapse
thank you for confirmation... I am trying to stay away from root as full tech support is more important to me at the moment.
SA1GON said:
thank you for confirmation... I am trying to stay away from root as full tech support is more important to me at the moment.
Click to expand...
Click to collapse
I get that. I am, otoh, straddling that fence atm. I prefer root, but I just got the Note 4 so I spend my day cursing at the ads and playing "I wish, I wish..." Soon, very soon. :fingers-crossed:
Only way to get it running is root and GT
Sent from my SM-N910P using Tapatalk
Andrew K. Sterling said:
Hi there,
Try these:
Method #1 Go to the dial screen on your phone as if you are going to make a call and press #7465625*638*# Once prompted for code, enter the 8 digit Unlock Code.
Method #2 Go to the dial screen on your phone as if you are going to make a call and press: #7465625*638*UNLOCKCODE# (you can try this method only if you already received the Network Unlock Code)
Method #3 Go to the dial screen on your phone as if you are going to make a call and press: #0111*UNLOCKCODE# (you can try this method only if you already received the Network Unlock Code)
Click to expand...
Click to collapse
I know it has been a whie since you posted this, but the first method prompted me for network unlock key but the key sprint provided me was only six digits. and they actually provided a second one after the first was unsucessful. the second had no better results. Any hints?
Andrew K. Sterling said:
Hi there,
Try these:
Method #1 Go to the dial screen on your phone as if you are going to make a call and press #7465625*638*# Once prompted for code, enter the 8 digit Unlock Code.
Method #2 Go to the dial screen on your phone as if you are going to make a call and press: #7465625*638*UNLOCKCODE# (you can try this method only if you already received the Network Unlock Code)
Method #3 Go to the dial screen on your phone as if you are going to make a call and press: #0111*UNLOCKCODE# (you can try this method only if you already received the Network Unlock Code)
Click to expand...
Click to collapse
Is the network unlock code the same as the MSL?
SA1GON said:
yup, I concluded that after a few hours of testing... tried several rev of Odin3 and several OEM ROM... all fail to auth... was hoping as last option that root will work but didn't plan for that route...
Are there any options to get the prompt for domestic SIM/carrier unlock? Whether auto or manually?
The only paid unlock service I see for N910P that guarantee it is on eBay... are those trustworthy?
Click to expand...
Click to collapse
I'm sure there's some way to use your msl to unlock, but I don't know how.
But if you give up, I used www.idoneapps.com
I used him and worked flawless. They have good support too.
I think you need to flash pc1 firmware or below to unlock but after you unlock you can flash anything else. As long as you don't disturb your efs partition you'll be unlocked. (But this requires root)
Hope you figure it out without having to pay, but if not, they're great.
Here , this will take all your problems away ?
#7465625*638*#
Unless ... for some weird aşş reason it doesn't work with your phone ? Then just look up on Google a secret dial code to force the network unlock code input for whatever phone you have

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