[Q] Unlock AT&T Galaxy S3 - AT&T, Rogers, Bell, Telus Samsung Galaxy S III

Hey guys,
I have an ATT Galaxy S3 but I recently switched to TMobile. I don't have the sim card yet, hopefully get it tomorrow, but my ATT sim card has been deactivated. Since I need to unlock my phone to use Tmobile, I was looking at some forums and I could do it using the dialpad and pressing *#197328640# and following some steps. But I read that this was possible in only a 4.1.1 ROM?
Right now I have MIUI v5. Do I have to downgrade in order to use the *#197328640# code and unlock?
Cheers!

You must be running stock 4.1.1 in order to have the necessary menu options.

Have you ever been on the 4.3 OTA? Or the 4.3 bootloader? If you haven't been on them you can use Odin to go back to 4.1.1 however if you have the 4.3 bootloaders and you try you will certainly have a hard bricked phone that might be recoverable via SD card or you will need a jtag.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

Related

[Q] [Solved] Unable to unlock Note II (SGH-i317m)

Hello XDA and Happy New Year!
I have a rooted Note II sgh-i317m locked to Bell Mobility. I would like to use it with another carrier. I have asked one source for an unlock code, and verified that he received the correct IMEI for the phone, but he said he was unable to get one. I have tried "00000000" but that doesn't work.
I rooted it to try GalaxSim Unlock from the Play store. GalaxSim says it is incompatible with this device. When I click "show details" I get "undefined" for IMEI, Sim Lock status, Product code, Serial Number, and all the rest of the fields. (I believe the app is using the android SDK to query the device for these settings and getting nulls.)
Rooting was a piece of cake with Odin, but how do I unlock my phone?
HB
edited to add details:
Android 4.1.1
Build number JRO03C.I317MVLALJ2
My root method was from galaxynote2root.com; it apparently doesn't touch the firmware.
try this method?
http://forum.xda-developers.com/showthread.php?t=2014982
Yes, this worked just fine! I am now happily using my Note 2 unlocked from Bell (AKA Hell) Mobility on Fido LTE.
Sent from my SGH-I317M using xda app-developers app
rogers sgh-i317m
HELP! I have a note 2 from rogers, i recently tried to do the service mode unlock. (#*197328640#) followed the instructions but i was missing the option 4 nv data. found out later that it was 4.1.1 i had 4.1.2. So got impatient took it to the local cell unlocker fella. He ran into trouble with entering the unlock code then attempted a process that reversed what i did and entered the code, this seemed to work the unlock with the code was successful. Or so it seemed until i inserted my telus sim card then my $780 dollar phone that i just paid cash 2 days ago wont accept the sim or any other including rogers. I tried rooting and i put 4.1.1 back on this got me to the point where it will accept a rogers sim but data will only run edge and call out if i set it to gsm only in network settings this is the only way it will accept a rogers sim only
unlocked
me too , i can not unlock my note 2 canada sgh-í7m
Does this method work if im on the latest 4.3 from Bell?
umirza85 said:
Does this method work if im on the latest 4.3 from Bell?
Click to expand...
Click to collapse
No.
i know it a little late but if there are still people reading this today, well... this worked for me, and you need to be on 4.1.x variant of the note 2 i317/m rom.
I was initially on a 4.4.2 Koodo variant and downgraded it to a 4.1.1 Bell variant before i was able to successfully unlock the phone, since anything after 4.1.x that method is blocked/unavailable/patched. After i was done, my Videotron sim card was accepted and LTE is working flawlessly. Flashing Bells 4.4.2 rom posed no issues and phone was back to normal. Software updates were being checked normally (even tho no official lollipop will ever come from Samsung... but just saying) and nothing was acting out of the ordinary.
only problem is (but shouldn't really be anymore) that your KNOX counter will trip and will stay stuck at 1 due to some hardware thingy being physically changed. This is because of the Security enhancements being violated when downgrading from 4.4.x to 4.1.x. (kitkat to jellybean is a big nono to the SE, but the other way around or kitkat to kitkat is fine)
if any issues or questing feel free to ask GL

[Q] Need some help unlocking at AT&T Note II

I was recently laid off from my job, but still have the Note 2 I had paid for when I started. The company refuses to pay the ETF on the line, so AT&T won't unlock it to let me use the phone on Straight Talk. I'm looking at rooting it, rolling it back to an earlier version, and unlocking it that way, but I'm unclear as to how to do it.
I know I can root, flash a 4.1.1 stock rom and unlock it that way, but I've also seen posts saying all I need to do is flash an old modem. Which is it? And if I'm just flashing back to 4.1.1 to unlock it, is the best course of action to do a nandroid backup of my current state and flash that after unlocking? Everything should stay unlocked, right?
It's the J2 modem, which is the first released..
Sent from my SAMSUNG-SGH-I317 using Tapatalk 4
It's the modem you change because the service menu you dial is for the modem settings.
Yes that is correct. I did that with my buddy's Att GN2 and it worked.

[Q] Unlock Samsung S3 SGH-i747M (possible???)

Hello everybody
I have a Samsung S3 SGH-i747M (from Canada) with 4.4.2 and version I747MVLUFNE6 which is locked. It asks for "SIM network unlock PIN".
Is there any way (I don't care for the warranty) to make it work with an other SIM? I am currently in Switzerland.
Thank you very much in advance!
No you'll have to either call the original carrier of the phone and request the code or pay for the unlock code.
pre4speed said:
No you'll have to either call the original carrier of the phone and request the code or pay for the unlock code.
Click to expand...
Click to collapse
Do you know a reliable site where I can ask for the code?
There's lots of them out there. Pretty sure eBay has some and you can judge by their feedback and ratings...can't think of any specific ones right now though.
Sent from my SAMSUNG-SGH-T999 using Tapatalk
pre4speed said:
No you'll have to either call the original carrier of the phone and request the code or pay for the unlock code.
Click to expand...
Click to collapse
The problem is that I don't know at which carrier belonged the phone and one page that I found,that doesn't require the carrier and I think read that is reliable (swiftunlock.com), does not include the i747m in the list.
Any ideas or any other sites?
Any that offer it for the I747M should work. Don't take my word for it though. Ask the vendor first.
Sent from my SAMSUNG-SGH-T999 using Tapatalk
All the sites that i found ask for the carrier which I don't know or to have the phone rooted and have a version lower than 4.1.1 which I don't .
Is there any way to find out at which carrier it belonged?
Or any other reliable solution?
Please... :crying:
Go yo swappa.com and check the imei. I think it shows the original carrier when it does the check.
Sent from my SAMSUNG-SGH-I747 using Tapatalk
grgkots said:
Hello everybody
I have a Samsung S3 SGH-i747M (from Canada) with 4.4.2 and version I747MVLUFNE6 which is locked. It asks for "SIM network unlock PIN".
Is there any way (I don't care for the warranty) to make it work with an other SIM? I am currently in Switzerland.
Thank you very much in advance!
Click to expand...
Click to collapse
I just unlocked my SGH-I747M(canada Rogers/Fido) by down-grading to 4.11 and using the info from this thread "How to Unlock Your Samsung Galaxy S3 & Note 2 (No Rooting)"
found this in t-mobile thread. might be worth a check
err on the side of kindness
mrmike7 said:
I just unlocked my SGH-I747M(canada Rogers/Fido) by down-grading to 4.11 and using the info from this thread "How to Unlock Your Samsung Galaxy S3 & Note 2 (No Rooting)"
Click to expand...
Click to collapse
Free method will not work unless the bootloader is from 4.1.2 or lower.
audit13 said:
Free method will not work unless the bootloader is from 4.1.2 or lower.
Click to expand...
Click to collapse
That maybe true.....but I do know it doesn't work with ICS or JB 4.1.2 because [4] NW Lock NV Data INITIALLIZ does not show in menu.
mrmike7 said:
That maybe true.....but I do know it doesn't work with ICS or JB 4.1.2 because [4] NW Lock NV Data INITIALLIZ does not show in menu.
Click to expand...
Click to collapse
Once you are on the 4.3 ot 4.4.2 bootloader, you cannot downgrade the bootloader and the 4.1.1 modem will not work on the 4.3 or 4.4.2 bootloader.
You must be on at least the 4.1.1 dialler and modem.
mrmike7 said:
I just unlocked my SGH-I747M(canada Rogers/Fido) by down-grading to 4.11 and using the info from this thread "How to Unlock Your Samsung Galaxy S3 & Note 2 (No Rooting)"
Click to expand...
Click to collapse
Hey, I also have a I747 on Rogers on 4.4.2. Im looking to downgrade it to 4.1.1 like you did so I can sim unlock it. What process did you use to downgrade? Was it this: http://www.sammobile.com/firmwares/download/8565/I747MVLDLK4_I747MOYADLK4_RWC.zip/
THanks.
---------- Post added at 01:54 PM ---------- Previous post was at 01:53 PM ----------
audit13 said:
Once you are on the 4.3 ot 4.4.2 bootloader, you cannot downgrade the bootloader and the 4.1.1 modem will not work on the 4.3 or 4.4.2 bootloader.
You must be on at least the 4.1.1 dialler and modem.
Click to expand...
Click to collapse
damnit, just saw this. Is there any way to downgrade to unlock the SIM? What about if im on a different ROM?
There is no free way to sim unlock your phone once you have the 4.3 or 4.4.2 bootloader on your phone.
How to know on which bootloader ( bootloader 4.4.2 or 4.3) I am coz I was able to install a custom rom on my SGH-I747M The rom is dirty unicorn android 5.1.1 lolipop rom so Can I downgrade coz if I remember correctly I upgraded from stock 4.1.1 so can I downgrade to stock 4.1.1 by downloading and injecting it via odin is it possible or will it hard brick my phone and can you give me way to confirm what bootloader I have ???
Boot into download mode and look at the screen. If you see anything about knox, it likely the bootloader can't be downgraded to 4.1.1.
audit13 said:
There is no free way to sim unlock your phone once you have the 4.3 or 4.4.2 bootloader on your phone.
Click to expand...
Click to collapse
Can you guide me that how to know which bootloader do you have i.e. do I have a 4.3 or 4.4.2 bootloader how would I know that? and also I do have a custom dirtyunicorn rom with 5.1.1 so is it possible for me to flash the 4.1.1 stock SGH-I747M rom to it and then unlock it and then again add my current rom and use it???
Download and install the Samsung phone info app from the play store, run it, and look at the last three characters of the bootloader. If it is mk3 or higher, the bootloader can't be downgraded.
sim unlock for sgh-i747m 4.4.2 working need confirmation
audit13 said:
There is no free way to sim unlock your phone once you have the 4.3 or 4.4.2 bootloader on your phone.
Click to expand...
Click to collapse
Not quite sure where to put this but I have just successfully sim unlocked a samsung galaxy s3 sgh-i747m on 4.4.2 .This is only prelimary but upon unlocking and inserting a Public Mobile sim I was able to text on a Canadian Rogers S3. No further testing has been done. I first rooted the phone using Kingoroot and then downloaded the phoneinfo app from play store. I then used the app to get to service menu.At first service menu is blank but I used menu ,then key input Q, then back, then key input 0000,then back and then service menu appears. Now I am doing this from memory and no longer have the phone or another one at the moment to confirm this and will update this as soon as I can. But to the best of my knowledge I first went to UMTS(1) ,thenDEBUG(1), then Phone Control(?), then Network Lock.. Perso-SHA256 was on(1) I set it to off (0). I then backed out of the menu and shut down phone.I inserted PM SIM in phone and booted up .Phone didnt ask for unlock code and shortly I had texting service with Public Mobile. I dont have voice or data to check those but cant seewhy they wouldnt work. Anyway can someone confirm this working.My steps may not be exact but if it worked for me it should work for others.

Downgrading from 4.4.2 to 4.1.1 to SIM unlock, possible yet?

Hi, I'm thinking about buying a note 2 that is locked to a carrier that isnt mine, I've had a note 2 previously before the 4.4.2 update and successfully unlocked it by flashing 4.1.1 and using the service menu, from my understanding this isn't possible now because of the 4.4.2 bootloader. Is there a work around for this yet? I'd like to save $20 on unlocking it if possible.
Nvm! Phone has 4.3 on it, I'm in the clear!

[Q] AtT NOte 2 unlocked, now using Tmobile, Can't upgrade firmware

MY sister called ATt to unlock her phone when she went abroad, they did. Now she no longer has ATT and is with tmobile. Using the Tmobile sim card, she can't seem to upgrade her OS using the firmware update option in settings. How can she go about upgrading? she currently has android 4.1.2 with the NOte 2?
also if i flash aokp on her phone, but she don't like it, then flash back the original 4.1.2 firmware, would i lose the unlock that ATT did for her and she can't use Tmobile anymore?
jinjin12 said:
MY sister called ATt to unlock her phone when she went abroad, they did. Now she no longer has ATT and is with tmobile. Using the Tmobile sim card, she can't seem to upgrade her OS using the firmware update option in settings. How can she go about upgrading? she currently has android 4.1.2 with the NOte 2?
also if i flash aokp on her phone, but she don't like it, then flash back the original 4.1.2 firmware, would i lose the unlock that ATT did for her and she can't use Tmobile anymore?
Click to expand...
Click to collapse
Unlock is permanent ok.
Ota updates come from AT&T servers, meaning you'll need to be on AT&T network.
Btw plenty of stock 4.4.2 Roms in the development section you can flash for her.
Aosp is to buggy and isn't official 4.4.2.
Check here>> http://forum.xda-developers.com/galaxy-note-2-att/development
And good luck..

Categories

Resources