Develop Bugs

[Q] Upgrading an Unlocked AT&T Samsung Galaxy SIII

I sincerely apologize if this has been asked before. However, after lots of searching, I have been unable to find an answer anywhere.
I am more experienced with iDevices as opposed to Android. With Apple products, as long as the device is not factory unlocked, every time the firmware is flashed, the unlock process will need to be redone.
So, I have an AT&T Samsung Galaxy S3 which is unlocked via an unlock code, and I use it in the Caribbean. I'd like to update to the latest firmware (4.0.4 > 4.1.1) using Samsung Kies, on my desktop. Before I do so, I'd like to know will the phone remain unlocked after flashing the new firmware? Or will I need to unlock once again?
I apologize if this is a stupid question, but I'd just like to be precautious. Thanks for any help in advance.
P.S. My device is rooted. Will this affect the update?

I don't think the update will effect the unblocking....
But why update thru kies when the stock/rooted rooms are found here too??
Kies will have issues updating if your device is rooted.... So just flash the stock rooted images, via Odin program, here on XDA.
Here are the stock/rooted 4.1.1 ROMs with Odin program as well:
http://forum.xda-developers.com/showthread.php?p=28019751
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

jayRokk said:
I don't think the update will effect the unblocking....
But why update thru kies when the stock/rooted rooms are found here too??
Kies will have issues updating if your device is rooted.... So just flash the stock rooted images, via Odin program, here on XDA.
Here are the stock/rooted 4.1.1 ROMs with Odin program as well:
http://forum.xda-developers.com/showthread.php?p=28019751
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
Click to expand...
Click to collapse
Alright, thanks. I'll use Odin instead. But can someone give me a definitive answer on whether the update/flashing will affect my unlock?

.Xanadu. said:
Alright, thanks. I'll use Odin instead. But can someone give me a definitive answer on whether the update/flashing will affect my unlock?
Click to expand...
Click to collapse
It won't effect it
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

jayRokk said:
It won't effect it
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
Click to expand...
Click to collapse
Thanks.

Unlock
.Xanadu. said:
Thanks.
Click to expand...
Click to collapse
Once a phone is Unlocked with Code it stays Unlocked!!!!!!

tailgunner9 said:
Once a phone is Unlocked with Code it stays Unlocked!!!!!!
Click to expand...
Click to collapse
+1 it will stil remains unlocked

Thanks a lot guys. Appreciate the answers.

Sorry for the double post. However, just updating that I just successfully updated to a fresh install of 4.1.1 from 4.0.4, and my unlock is indeed still intact. So, anyone else who is a n00b like myself, and is worried of the same thing when updating, don't be.

Hello. I am new to samsung. It came from At&t and i unlocked it here in the philippines. And as ive checked the software it is still 4.0 and since i want to update the software it only says communication failed. May i ask if is it possible to update my s3 to the latest version? Im really desperate Thank yooooou.

A phone can be relocked once an unlock code has been entered but this only happens if the phone undergoes a repair and the IMEI is changed.
Also, just to calrify as the original responder has mentioned "blocking". A blocked phone is very different to one that is locked. This might confuse people but just to confirm, if you have a blocked phone, unlocking it won't help. A block is done at network level and stops the phone connecting to any network to make or receive a phone call. A lock is at phone level and simply limits the phone to working on one network only. A lock can be switched from on to off to allow it to work on all networks but a block can only be removed by the networks.

Sim unlock for 4.1.2

Is there any way to unlock the sim on JB 4.1.2 without downgrading to 4.1.1? Thanks.

tsx2004 said:
Is there any way to unlock the sim on JB 4.1.2 without downgrading to 4.1.1? Thanks.
Click to expand...
Click to collapse
Does it matter what version OS you are on? Just get a sim card from AT&T and plop it in. Course you'll need the code to unlock it...

I did it a couple Days ago.
Went back one baseband to the one before UVALL. Something K8? Did the menu trick and then back to UVALL.
The baseband are flashable from CM. Didn't have to revert to 4.1.1
from tapatalk (Galaxy Note 2)

Call tmobile for an unlock code?
Hastily spouted for your befuddlement

Just curious, why u r on UVAL while there is MD1?
If I will unlock then I will have to stay on UVAL? I can't upgrade from k8 modem to MD1 modem?
Sent from my SGH-T889 using xda app-developers app

jamalkhaffaf said:
Just curious, why u r on UVAL while there is MD1?
If I will unlock then I will have to stay on UVAL? I can't upgrade from k8 modem to MD1 modem?
Sent from my SGH-T889 using xda app-developers app
Click to expand...
Click to collapse
This is what I want to know as well.
My note 2 was unlock using the menu trick.
Now im trying to update to MD1 modem.
Will I lose my unlock? or is the unlock permanent?
Need answersss.
Traveling to Asia in 6 days.
Edit:
well I already updated to MD1.
Now i need some other sim card to test what I fear.

chineboy359 said:
This is what I want to know as well.
My note 2 was unlock using the menu trick.
Now im trying to update to MD1 modem.
Will I lose my unlock? or is the unlock permanent?
Need answersss.
Traveling to Asia in 6 days.
Edit:
well I already updated to MD1.
Now i need some other sim card to test what I fear.
Click to expand...
Click to collapse
You messed up by upgrading!!! You lost your unlock and can't get it back!!!!!
Just kidding Once you unlock, you're unlocked for good. You can flash as many ROM's, kernels, or modems you want.
No need to fear, you're good to go :victory: Enjoy your trip!!

kozmo21 said:
You messed up by upgrading!!! You lost your unlock and can't get it back!!!!!
Just kidding Once you unlock, you're unlocked for good. You can flash as many ROM's, kernels, or modems you want.
No need to fear, you're good to go :victory: Enjoy your trip!!
Click to expand...
Click to collapse
I saw your "you messed up..." only top half in my email. Then I freaked out for like 2 sec. then I came on xda and saw the full message.
Well the moment of truth will reveal itself when I pop in that international sim card. (otherwise I have to use my iphone....)
edit: I test with att on my previous firmware and it was unlocked so anyway I will just have to wait til I travel and see.

chineboy359 said:
I saw your "you messed up..." only top half in my email. Then I freaked out for like 2 sec. then I came on xda and saw the full message.
Well the moment of truth will reveal itself when I pop in that international sim card. (otherwise I have to use my iphone....)
edit: I test with att on my previous firmware and it was unlocked so anyway I will just have to wait til I travel and see.
Click to expand...
Click to collapse
LOL :silly: Turned out better than I thought :victory:
If it worked before you flashed the new modem, it will work after... no worries!

Got the unlock code from tmobile! thanks.
All good here. thank you!

jamalkhaffaf said:
Just curious, why u r on UVAL while there is MD1?
Click to expand...
Click to collapse
Didnt know about MD1. Will check it out. Thanks.
from tapatalk (Galaxy Note 2)

tsx2004 said:
Got the unlock code from tmobile! thanks.
All good here. thank you!
Click to expand...
Click to collapse
Not so simple anymore. T-Mobile used to be very good about unlocking, but they recently changed their policy.
They require 18 months on the last contract before issuing a code. So you don't unlock and run, I suppose.
Personally, that's my signal to run.
Having been a loyal customer for over 13 years, and fulfilled half a dozen contracts despite unlocks, I'd appreciate a little trust.
But there is no loyalty in this world. So hack and root and run it is.
(I'll recoup the early termination fees in 3-4 months)

Brick problem (boot certification verify)

Ok so I have this issue with my phone.
I tried bringing it back by using the KDZ programm but everytime I try it I have a problem with the extraction of the file.
I tried the compatability issues but it doesn't seem to work.
Please could somebody say to me what to do?
I need the phone for tommorow and I made a fuss and trying to find a solution. If I hard reset it will it start?
Thank you in advance!
Ok so I tried to hard reset it but it pops out the same message.
What am I supposed to do please give me some feedback.

Ur phone bricked?if it is u could unbrick it just search the term in forums....only software brick can be unbricked not hardware
Sent from my A240 using XDA Premium 4 mobile app

Trustlover™ said:
Ur phone bricked?if it is u could unbrick it just search the term in forums....only software brick can be unbricked not hardware
Sent from my A240 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
It is software brick. I updated it today, it tryed to restart and it couldn't do it!

I managed to unbrick my device but it seems that it doesn't have the root inside it.I tried to root it again and it says that the binary support is missing.Any ideas?
Sent from my LG-E975 using xda premium

wow,i'm still amazed. please,don't ask for support on PM. it's one thing i'll never do, at least not for free.
you have all the info you need here.if you can't find it,well, look further.
like i said, clicking on my signature will give you alot of answers. if you still can't fix it, it means you don't have the proper knowledge and it would be better to call someone who has it or start learning.
I always advice users to document themselves BEFORE,not after screwing up.

kimitza said:
wow,i'm still amazed. please,don't ask for support on PM. it's one thing i'll never do, at least not for free.
you have all the info you need here.if you can't find it,well, look further.
like i said, clicking on my signature will give you alot of answers. if you still can't fix it, it means you don't have the proper knowledge and it would be better to call someone who has it or start learning.
I always advice users to document themselves BEFORE,not after screwing up.
Click to expand...
Click to collapse
Ok we got your point.... You say some things, I tried some things and they didn't seem to work cause I didn't knew what the problem was... You know what... You can also block me from your pm and looking at my posts, and don't whine for it here like a baby.

I'm whining?If you only could see how many PM's i'm getting..you wouldn't say that. And most of those questions have been answered here,including by me.
Bottom line, use either kdz updater or lg mobile tool(for emergency firmware recovery) to get a clean phone,then start rooting and unlocking procedures.

kimitza said:
I'm whining?If you only could see how many PM's i'm getting..you wouldn't say that. And most of those questions have been answered here,including by me.
Bottom line, use either kdz updater or lg mobile tool(for emergency firmware recovery) to get a clean phone,then start rooting and unlocking procedures.
Click to expand...
Click to collapse
Ok I am sorry ok? But you seem to be the only one knowing things about this phone so expect pm's... If I update it through the LG tool will my stuff (apps etc) will also get erased? Cause I can't back up them.If I remember right titanium backup works only with rooted devices.
Sent from my LG-E975 using xda premium

You can try other methods to root. There are several ways. Again,my FAQ can help you.
I get you don't have a custom recovery,right?since you lost root and you didn't unlocked the bootloader.
And there is an app called hellium,developed by cm team if i'm not mistaking,which allows you to backup your apps without root.
Sent from Asylum via LG E975/smart phones,dumb people.

[Q] URGENT HELP!!!!! Unlocking T-Mobile S4 for International Use

I´ve followed several different threads, stating to use *#0011# and other variants, but none of them are currently working.
I´ve tried using *#0011#, Menu, Back, Menu, 1 and it just stays there. And trying to use *#27663368378# does nothing whatsoever. I´m really stumped and I´m currently back in Colombia so I need to be able to use this phone ASAP!!!
The phone IS rooted, but it has a stock ROM and I´m running 4.3.
Please help!

Have you tried RegionLockAway app? Outside of that you could try buying a code online.
☞ Sent from here☜???

baseballfanz said:
Have you tried RegionLockAway app? Outside of that you could try buying a code online.
☞ Sent from here☜???
Click to expand...
Click to collapse
I have never heard of it. I will try that for sure.
The thing with the online code is that my CC has no money because I withdrew everything since I won´t be needing to use it at all since I won´t be going back to the US.

PwnYourFace said:
I´ve followed several different threads, stating to use *#0011# and other variants, but none of them are currently working.
I´ve tried using *#0011#, Menu, Back, Menu, 1 and it just stays there. And trying to use *#27663368378# does nothing whatsoever. I´m really stumped and I´m currently back in Colombia so I need to be able to use this phone ASAP!!!
The phone IS rooted, but it has a stock ROM and I´m running 4.3.
Please help!
Click to expand...
Click to collapse
So, that didn't work. It still requires an online code and unfortunately I'm still unable to get a way to pay online for a code. Any help would be awesome!!!
Sent from my SGH-M919 using xda app-developers app

PwnYourFace said:
So, that didn't work. It still requires an online code and unfortunately I'm still unable to get a way to pay online for a code. Any help would be awesome!!!
Sent from my SGH-M919 using xda app-developers app
Click to expand...
Click to collapse
Most areas have private phone centers that can usually unlock phones for you.

PwnYourFace said:
So, that didn't work. It still requires an online code and unfortunately I'm still unable to get a way to pay online for a code. Any help would be awesome!!!
Sent from my SGH-M919 using xda app-developers app
Click to expand...
Click to collapse
Are you on MDL or MK2 bootloader?
If you're still on MDL bl, Odin back to MDL firmware, root abd run Region LockAway.
☞ Sent from here☜???

baseballfanz said:
Are you on MDL or MK2 bootloader?
If you're still on MDL bl, Odin back to MDL firmware, root abd run Region LockAway.
☞ Sent from here☜???
Click to expand...
Click to collapse
I'm on MK2.
How can I get back onto 4.2.2? Can I odin flash it?

grncherry said:
Most areas have private phone centers that can usually unlock phones for you.
Click to expand...
Click to collapse
I looked around everywhere and right now what I'm being told is that I need to downgrade to 4.2.2
Any help with that?

PwnYourFace said:
I looked around everywhere and right now what I'm being told is that I need to downgrade to 4.2.2
Any help with that?
Click to expand...
Click to collapse
If your phone came with 4.3 already installed from T-Mobile or you took the official ota then you are out of luck as far as downgrading is concerned. Are yu any of tthose? if so, you will have to buy an unlock code from an online unlocker like FastGSM

grncherry said:
If your phone came with 4.3 already installed from T-Mobile or you took the official ota then you are out of luck as far as downgrading is concerned. Are yu any of tthose? if so, you will have to buy an unlock code from an online unlocker like FastGSM
Click to expand...
Click to collapse
Long story short, I did the OTA, it didn't work, so I had to Odin flash 4.3 from samsung updates and then root it. Am I in luck?!?!

PwnYourFace said:
Long story short, I did the OTA, it didn't work, so I had to Odin flash 4.3 from samsung updates and then root it. Am I in luck?!?!
Click to expand...
Click to collapse
Nope, your goose is cooked, sorry.

grncherry said:
Nope, your goose is cooked, sorry.
Click to expand...
Click to collapse
****.....

[How to] Sim Unlock the Galaxy S4 Without the Hidden Menu

HOW TO SIM UNLOCK THE SGH-M919, no unlock code necessary.
This thread is for all of you that have tried this method and have failed: How to SIM unlock Samsung Galaxy S4 SGH-M919 (tested - works) - Updated: 7/2/13
EDIT: I'm sorry to say that after testing this method out on a replacement s4 running stock 4.3 with the MK2 bootloader, this method DOES NOT WORK ON 4.3 OTA OR MK2 BOOTLOADER
The previous method worked on Samsung devices running the old firmware and was patched by T-Mobile and Samsung in the M919UVUAMDL release. Many new (purchased in the last few months) devices have been known to have this release pre-installed.
This is not my work, it is chainfire's genius. You must, at the very least, go and give him the "Thanks". If you can, donate a beer.
His app "RegionLockAway" was intended to de-regionlock devices that Samsung had marketed as "unlocked" (i9505, N9005, etc).
However, a common side-effect for other carrier-branded variants was that it unlocked their devices as well. I tried it and it worked on my SGH-M919 that I bought from T-Mobile.
TO UNLOCK THE M919,
1. Make sure that you are on the completely stock touchwiz setup that came with the phone (bootloader, kernel, and stock touchwiz rom). You can restore via kies/odin here: http://forum.xda-developers.com/showthread.php?t=2258628. Again, thank the developer if you used it.
2. Install RegionLockAway Thread: http://forum.xda-developers.com/showthread.php?t=2470551
3. Thank the developer, even if it doesn't work.
4. Run the RegionLockAway app and click "Region Unlock"
5. Follow all onscreen instructions carefully.
6. Reboot and test it out with preferably a non-North American SIM. This ensures that not only is it unlocked, but also region unlocked. If it asks you for a code, it failed.
As a standard disclaimer:
If you bricked it, it's your fault. I tried it on my own and it worked for me.
As always, I highly recommend donating to the developers who helped you.

First time first! Thanks for this info. I themed chain fire as well
Sent from my SGH-M919 using XDA Premium 4 mobile app
---------- Post added at 09:21 PM ---------- Previous post was at 09:20 PM ----------
DigitalHeretic said:
First time first! Thanks for this info. I thanked Chainfire as well
Sent from my SGH-M919 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Sent from my SGH-M919 using XDA Premium 4 mobile app

region unlock and sim unlock aren't the same as far as I know.
You can use sims outside of your region (country) but you can't slap an at&t sim card in there and use it.

HTCMDA said:
region unlock and sim unlock aren't the same as far as I know.
You can use sims outside of your region (country) but you can't slap an at&t sim card in there and use it.
Click to expand...
Click to collapse
No they are not BUT they're closely related that doing one usually result in the other. RegionLockAway will SIM unlock when use correctly. I used it a few months ago to SIM unlock my GS4. After it was done I put in an AT&T SIM and made a few calls plus try a few websites.
☞ Sent from here☜???

Like I said, SIM unlock is usually a side effect of Region-unlocking.
BTW: @baseballfanz Sugarland, TX is a nice place to live. (The astros still suck).

superbowlmania said:
BTW: @baseballfanz Sugarland, TX is a nice place to live. (The astros still suck).
Click to expand...
Click to collapse
Haha can't argue with you there.
There's some talks about Nolan Ryan joining the Astros in some capacity soon. Hopefully he can get them in the right directions.
☞ Sent from here☜

superbowlmania said:
Like I said, SIM unlock is usually a side effect of Region-unlocking.
BTW: @baseballfanz Sugarland, TX is a nice place to live. (The astros still suck).
Click to expand...
Click to collapse
Was you rooted when tried the program? I tried it and it said that wasn't able to gain root access and bumped me to homescreen... I am not rooted and on Stock 4.3.3

villeban said:
Was you rooted when tried the program? I tried it and it said that wasn't able to gain root access and bumped me to homescreen... I am not rooted and on Stock 4.3.3
Click to expand...
Click to collapse
Yes you need root for the app to work.
☞ Sent from here☜

HTCMDA said:
region unlock and sim unlock aren't the same as far as I know.
You can use sims outside of your region (country) but you can't slap an at&t sim card in there and use it.
Click to expand...
Click to collapse
T-Mo gave me an "Unlock code" and it was from Sammy, and it would not work. After 3 tries, each with a different code, it still would not work, so I gave up.
Today using chainfire's app, it works, and I insert an At&T sim card, and it doesn't ask for the code anymore! it's UNLOCKED, and it recieves a signal and connects to the internet via my wireless router. All's good and after placing my T-Mo sim back in, it's all good!
All the connections still like it used to be.
Awesome!

I just called tmobile they provide me with unlock code.
Sent from my C6916 using Tapatalk 2

epsix said:
I just called tmobile they provide me with unlock code.
Sent from my C6916 using Tapatalk 2
Click to expand...
Click to collapse
Why go off topic with this kind of post?
Anyways... This has worked for mee at least for 3 devices I have used it, S4 and S3.
Sent from my SGH-M919 using XDA Premium 4 mobile app

didnt work for me,.... looks like ill have to pay for one. Any recommendations?

osugsxr said:
didnt work for me,.... looks like ill have to pay for one. Any recommendations?
Click to expand...
Click to collapse
This method worked and my m919 is working on att! =D Is this a permanent solution?

osugsxr said:
didnt work for me,.... looks like ill have to pay for one. Any recommendations?
Click to expand...
Click to collapse
A little more info would help. "It didn't work for me" doesn't tell us much. Why didn't it work? Any reason given? Firmware, rooted non rooted?
Faint333 said:
This method worked and my m919 is working on att! =D Is this a permanent solution?
Click to expand...
Click to collapse
Yes should be permanent.
☞ Sent from here☜

baseballfanz said:
A little more info would help. "It didn't work for me" doesn't tell us much. Why didn't it work? Any reason given? Firmware, rooted non rooted?
Yes should be permanent.
☞ Sent from here☜
Click to expand...
Click to collapse
4.3
baseband: mk2
build: jss15j.m919uvuemk2
rooted
try a different version?

I unlocked my SGH-I337 using a similar method, only I flashed an older modem that has the service menu unlocked. Is that method possible on this phone also?
Sent from my Hyperdriven S4

I had updated to the 4.3 firmware before unlocking and T-Mobile's unlock code didn't work on my phone. This was my only recourse and it worked. Thanks, OP!

davebegue said:
Howdy _ i was thinking about trying this method for an sgh-m919 so I could use it on AT&T? Any thoughts or suggestions please. Do you think I would need a t mobile sim card to do the unlocking process?
Click to expand...
Click to collapse
You do not need a T-Mobile sim card but the phone must be rooted.
☞ Sent from here☜

Worked well today, just tried it. Thank you

Is it absolutely necessary to be on stock firmware? I gave it a try running VirginRom and it seems to have worked, but I don't have a sim from another carrier to test with.