[Q]Help SIM unlocking Tmobile SGH-T999 for use in South America! - T-Mobile, Samsung Galaxy SIII

Hi all, I've been reading tons of threads and I am still having some difficulties with this phone. I am not in the US, I got this phone from a coworker that was going to throw it away and brought it with me to south america to give it to my friends mom who has no money, its and old phone but the one she has is even crappier ,I thought I would be able to just pop the SIM and get it going but nope.
If anyone could point me in the right direction I would really appreciate it, I have a few more days before I go back home and I would love to be able to leave this working for her.
Let me put you up to speed:
-Phone is running Android 4.3
-Phone was rooted using Odin, has SU and CWM
-Followed thread here to SIm unlock: https://forum.xda-developers.com/showthread.php?t=2023709 but #4 option is not present on 4.3
-I tried downgrading to 4.1.2 custom root666 to see if I could get #4 but to no avail since you cannot from this 4.3 version
-About to follow this thread :https://forum.xda-developers.com/showpost.php?p=48012926&postcount=8
but not sure if correct for what I want to do.
No more ideas, please help!

The phone can only be unlocked used an unlock code. Try contacting T-Mobile for a free unlock code or buy a code from eBay.

i'm with the same problem. i bought an sgh-i747 and after two months it bricked, so i replace the logical card (i don't remember how to say it in English, lol.) and boom!!! now i have a t999 and it doesn't work with movistar. (i'm from Venezuela)
but well, i've been reading posts about unlocking the phone and every one of them only works in JB 4.1.x. i don't know if i could unlock it by the downgrade process and i'm scared of getting the phone bricked again.

Related

Unlock phone, sim, root, odin, flash cwm, flash twrp, use your "unique key", wtf?

Unlock phone, sim, root, odin, flash cwm, flash twrp, use your "unique key", wtf?
Excuse me. I do this a couple times every year or so and I'm still confused as to what's going on? And why do I have to keep doing it? I just got a new AIO sim card and it requires some code to unlock. Does that mean my phone unrooted itself when I flashed the latest stock rom in here, which btw finally a fully functional ROM, go figure... And what's the difference between using odin and this code sequence from the dialer method I found somewhere where you punch in a long *#blablabla# code which puts you in the matrix where you do a little dance here and there then viola your sim is unlocked? Anyway, if these are all unrelated, what is this unlocking my sim business and when the heck does rooting actually occur within the maze of steps Odin takes you. And why all this after I flashed the stock rom? It's supposed to retain your rooted state still no?
Sent from my SGH-T989 using Tapatalk
juntjoo said:
Excuse me. I do this a couple times every year or so and I'm still confused as to what's going on? And why do I have to keep doing it? I just got a new AIO sim card and it requires some code to unlock. Does that mean my phone unrooted itself when I flashed the latest stock rom in here, which btw finally a fully functional ROM, go figure... And what's the difference between using odin and this code sequence from the dialer method I found somewhere where you punch in a long *#blablabla# code which puts you in the matrix where you do a little dance here and there then viola your sim is unlocked? Anyway, if these are all unrelated, what is this unlocking my sim business and when the heck does rooting actually occur within the maze of steps Odin takes you. And why all this after I flashed the stock rom? It's supposed to retain your rooted state still no?
Sent from my SGH-T989 using Tapatalk
Click to expand...
Click to collapse
So let me see if I understand your statement. You flashed another ROM... and then got a new SIM for your phone, but when you turned it on it will ask you for an unlock code? Rooting and unlocking are two different things, you can be rooted and not unlocked... so what you need to do is follow the unlocking method. Or... I don't seem to understand what you mean, can you be a little more specific?
Sorry. It's confusing. I'm stuck at the sim unlocking part, where you can put in a code from the dialer as shown here: forum.xda-developers.com/showthread.php?t=2024514
Unless you know your unique code to unlock your sim whatever that means. So I should still be rooted but now somehow still locked or something? Or is it just the sim that is locked? I'm fine with my old tmobile sim/account in place as in as I'm writing this, but as soon as I pop in my aio sim, back to that thread but id need to install uvle1 but b4 I do all that I just want to know what and why I am doing. Should I continue? What exactly will I be doing? Thanks
Sent from my SGH-T989 using Tapatalk
Sounds like right now your phone is carrier-locked; i.e. your phone will not work with a sim card for a network other than T-mobile's. Rooting will not unlock your phone for use with another carrier's sim card, however, the instructions in the thread you linked in your post will. If you really want to use that AIO sim card without paying for an unlock code from T-mobile or some other source, then the instructions in that thread are probably the best way to make it work. UVLE1 identifies particular modem/radio firmware and stock ROM that needs to be installed on the T989 in order to have access to the menu items required for the unlocking process. You can switch to the most recent radio or any ROM of your choice afterward without losing the ability of an unlocked phone.
My friend, you have a lot of studying to do....I'm sorry, but you seem awfully confused. No insults intended.
Please read all the stickies and then some.... before you attempt anything on your device. Very bad things can happen if you don't understand what you are doing and exactly how to do it.
Good luck!
Sent from my N5, N7, Moto X, G Tab 3 or S2.....
---------- Post added at 10:34 PM ---------- Previous post was at 10:31 PM ----------
2 search terms for Google will answer everything too.
One: how unlock t989 free XDA
Two: how root t989 xda
Those will get you started. ?
Sent from my N5, N7, Moto X, G Tab 3 or S2.....
Okay in up to speed now on all this. I've known this stuff at different points in my PDA phone assisted life but due to my own RAM deficiency i easily forget this stuff. Especially since I only learn it over a few days of the year.
Anyway, I forgot I never unlocked my phone because I never even needed to till now. My phone had always been rooted as I've been swapping ROMs for a while now. Well I'll go work on that solution now. Thanks for the replies
Sent from my SGH-T989 using Tapatalk
unlocking a china phone
please i need help on how to sim unlock a china phone
name:mizhi
model number:mz6 note
YunOS version:3.0.1
firmware:3.0.1-F-20150421.9035L
Baseband:MTK6595
kernel:3.4.67 SMP PREEMPT
BUILD VERSION:T1786DN_XKCKJ_W1_ALIYUN_SEC_V1.0.4_USER_r16059
would be glad if someone can give me information on how to sim unlock this phone.i bought it in china and came to another country.its dual sim
Good day my phone is not connecting to any network. When I insert my sim card it just writes emergency calls only... it doesn't even prompt me for the sim unlock code....plz help

How to sim unlock the trac phone sgh-s970g galaxy s4...and possibly others

Ok so this is still a work in progress but it works, and lte works on my att and tmobile sims. Ill post as many screen shots and be detailed as I possibly can so bear with me.....
So i have a samsung galaxy s4 the sgh-s970g, and a customer needed it unlocked so I thought I would give it a try. Its been a fun phone to mess with. So I am on 4.2.2 and this is the only version I have tested on. I havent tested on 4.3 so let me know if it works for you.
So my baseband is MH3. I used saferoot to root the phone and then I used the twrp for the m919 version to get a custom recovery. after this i went into recovery and made a nandroid. I would advice you do the same if your going to try this, because I am in no way responsible for anything that happens to your phone it will trip your knox counter and your warranty is now void.
ok so I have a tmobile sim in the phone the whole time because it gives you a invalid sim message and when you get rid of that the phone is unlocked. Now I flashed the wicked v-8 4.2.2 custom m919 rom onto the phone. And after that i booted it up like normal and had no problems booting it. So when it finally boots up this is what I see....
know with the tmobile rom it is asking for a sim unlock code. This is where it gets a little tricky.. Youll need to download region lock.apk
you can get it from the play store or from the developer on xda, (great app by the way). So now is when i procedded to use spt box to unlock part of this but i believe you can do it without the spt. so just set your phone up and when your done your settings should look like this... youll still have straight talk radio but everything else including kernel is the tmobile m919.
Ok so now go ahead and open up the region unlock apk and instead of pressing unlock your going to lock it. when its done go ahead and reboot it and then its going to ask your for a password again but this time you know it.. Its going to be 00000000, or atleast it was for me but like I said i dont believe spt is needed to reset the efs i believe the region lock apk will do this and it shoould say unlock succesful like this...
the only kicker is anytime you reboot your phone your going to have to run region lock and lock your modem and then reboot and type in the 8 zeros to unlock if someone figures out a better way that would be awesome.. I also believe this method could be used to help unlock the s4 l720t and sm-n900p without the assisstance of sprint. Any feedback and help would be greatly appreciated and enjoy your unlocked phone....
hi bro
robhuffster said:
the only kicker is anytime you reboot your phone your going to have to run region lock and lock your modem and then reboot and type in the 8 zeros to unlock if someone figures out a better way that would be awesome.. I also believe this method could be used to help unlock the s4 l720t and sm-n900p without the assisstance of sprint. Any feedback and help would be greatly appreciated and enjoy your unlocked phone....
Click to expand...
Click to collapse
hi bro, my question is, i have one L720T for unlock this, i need root with m919 ? and unlock with SPT BOX ???
robhuffster said:
Ok so this is still a work in progress but it works, and lte works on my att and tmobile sims. Ill post as many screen shots and be detailed as I possibly can so bear with me.....
So i have a samsung galaxy s4 the sgh-s970g, and a customer needed it unlocked so I thought I would give it a try. Its been a fun phone to mess with. So I am on 4.2.2 and this is the only version I have tested on. I havent tested on 4.3 so let me know if it works for you.
So my baseband is MH3. I used saferoot to root the phone and then I used the twrp for the m919 version to get a custom recovery. after this i went into recovery and made a nandroid. I would advice you do the same if your going to try this, because I am in no way responsible for anything that happens to your phone it will trip your knox counter and your warranty is now void.
ok so I have a tmobile sim in the phone the whole time because it gives you a invalid sim message and when you get rid of that the phone is unlocked. Now I flashed the wicked v-8 4.2.2 custom m919 rom onto the phone. And after that i booted it up like normal and had no problems booting it. So when it finally boots up this is what I see....
know with the tmobile rom it is asking for a sim unlock code. This is where it gets a little tricky.. Youll need to download region lock.apk
you can get it from the play store or from the developer on xda, (great app by the way). So now is when i procedded to use spt box to unlock part of this but i believe you can do it without the spt. so just set your phone up and when your done your settings should look like this... youll still have straight talk radio but everything else including kernel is the tmobile m919.
Ok so now go ahead and open up the region unlock apk and instead of pressing unlock your going to lock it. when its done go ahead and reboot it and then its going to ask your for a password again but this time you know it.. Its going to be 00000000, or atleast it was for me but like I said i dont believe spt is needed to reset the efs i believe the region lock apk will do this and it shoould say unlock succesful like this...
the only kicker is anytime you reboot your phone your going to have to run region lock and lock your modem and then reboot and type in the 8 zeros to unlock if someone figures out a better way that would be awesome.. I also believe this method could be used to help unlock the s4 l720t and sm-n900p without the assisstance of sprint. Any feedback and help would be greatly appreciated and enjoy your unlocked phone....
Click to expand...
Click to collapse
Great news, i read your post on gsmforum and i was waiting for this post. will try the same on other model.
pl share the download link for tmobile rom.
Thanks a lot for your great work.
here
javed91214 said:
Great news, i read your post on gsmforum and i was waiting for this post. will try the same on other model.
pl share the download link for tmobile rom.
Thanks a lot for your great work.
Click to expand...
Click to collapse
its the wicked v8 if your on 4.2.2 or lower and and its v10 if your on 4.3 or higher just look on xda under the m919 youll find it
robhuffster said:
its the wicked v8 if your on 4.2.2 or lower and and its v10 if your on 4.3 or higher just look on xda under the m919 youll find it
Click to expand...
Click to collapse
i tried wicked v8 and v10 both on L720T , but i am getting Invalid sim card error.
javed91214 said:
i tried wicked v8 and v10 both on L720T , but i am getting Invalid sim card error.
Click to expand...
Click to collapse
Region away app works only up to 4.3, so I guess you need to downgrade the baseband to L720T's MK3 modem.
No harm in trying.
Ive tried that
bigbyte.me said:
Region away app works only up to 4.3, so I guess you need to downgrade the baseband to L720T's MK3 modem.
No harm in trying.
Click to expand...
Click to collapse
the l720t was actually shipped with a 4.2.2 rom and if you could find that modem for the 4.2.2 it was originally shipped with you can unlock it
robhuffster said:
the l720t was actually shipped with a 4.2.2 rom and if you could find that modem for the 4.2.2 it was originally shipped with you can unlock it
Click to expand...
Click to collapse
I can only find a 4.3 ROM for L720T not any version before it.
So, just to clarify, do we have to use the ROM or can we do this on stock? I have two of these LTE-T marked phones from Straight Talk that I'd like to use AT&T Straight Talk SIMs with.
tried this on a stock tmobile mdl firmware with the mh3 baseband with no go.. What am i doing wrong?
Has anyone been able to unlock these tracfone devices officially through a tracfone provided unlock code???
imzjustplayin said:
Has anyone been able to unlock these tracfone devices officially through a tracfone provided unlock code???
Click to expand...
Click to collapse
Yes i have, Tracfone will have to provide an update to fix the issue. Reason is that everytime you enter the code its accepted. But as soon as you reboot the phone it asks for the code again. So not sure how tracfone will handle this.
Well I returned my $250 Black Friday special as I just have no faith in getting an unlock code for these Galaxy S4s as I wanted to use it on AT&T and I had picked up the Tmobile version. I'll have to settled for a used item instead.
So will this phone work with a straight talk att Sim and a tmo Sim as long as its through ST?
After fallowing all the steps I get to the 8 0's hit enter and it just sits at the screen, and says unsuccessful. Sgh-s970g bb:mh3 av:4.2.2
Anyone know of a pay site to unlock this device. The one legit one was for over seas and I'm in US. I tried offering straight talk money and they said this phone needs to be active for 5 more months before they'll provide me the unlock code. I guess you need 12 months of active service to be eligible for the unlock program. The only thing is, is it will only work on a straight talk T-Mobile Sim until then. Tia.
It DOES work. I installed the wikid v8 rom on a SHG-S970G this morning, opened region lock, unlocked modem, relocked modem rebooted, and entered my unlock code and BAM, Successful unlock. Thanks a grand! By the way i bought the unlock code on a 3rd party site. Im now running ATT on the phone.
Straighttalk will only unlock phones purchased on or after Dec 2013, currently active on ST Service & have been active for 12 consecutive months, if you call the unlock department you will be transferred to their automated information center if your phone is not eligible for unlocking, this is just to inform you of the requirements to unlock your device.
ST unlock
I've had mine 6 months... Called them 5 times and they told me everytime they couldn't unlock my phone (sgh s970g). So.. I used CHIMURA to root for free. Installed the m919 twrp for recovery. Installed wikid v8 using twrp installed regionlockaway locked the modem rebooted, entered my unlock code and it gave me a successful unlock. As stated I'm running a Straighttalk AT&T sim on mine.
Extrapolate to S5?
james4117 said:
I've had mine 6 months... Called them 5 times and they told me everytime they couldn't unlock my phone (sgh s970g). So.. I used CHIMURA to root for free. Installed the m919 twrp for recovery. Installed wikid v8 using twrp installed regionlockaway locked the modem rebooted, entered my unlock code and it gave me a successful unlock. As stated I'm running a Straighttalk AT&T sim on mine.
Click to expand...
Click to collapse
Do you think a similar technique can be applied to a Galaxy S5 from Net10/TracFone? I tried to use a S902L with my (Canadian ) Rogers SIM card and unsurprisingly, it didn't accept it

How to Unlock S3 t999 4.3?

Hi to all, im new on the forum, i was looking to find a way to unlock my S3 t999 which has the android 4.3 JB, i got a lot of info but it seems that i only Rooted my S3, i found out that there an easy way to do it whit the Service mode but since i have Stock 4.3 its impossible, was looking a way to downgrade to 4.1.1 but probably ill get a brick, so if there any way that i get some help unlocking my device i sure will appreciate it.
After 4.1.2 I think there is no free alternative available (unless your carrier gives unlock codes for free after a certain time period). The best way to unlock your phone would be by contacting your carrier for an unlock code which usually means paying a fee or using a pay service. I would recommend using your carrier because they will offer better support and this would reduce your risk of getting scammed by a online service.
Help please!
Hi! Where do I begin?! So I have a tmobile s3 T999LTE version. Previously I rooted it because I wanted custom rom on my phone. Then I wanted to sell it so I unrooted it. I had read somewhere that after unrooting I should revert to latest stock firmware which was 4.3...BIG MISTAKE! It's now running on 4.3...LUVUBOH1 and I CAN'T UNLOCK IT! Tmobile had sent me a code which did not work, then I switched to metro pcs and purchased a code off ebay,which was the SAME code tmobile had given me. I now have metro pcs on another phone and when I put in my current sim in s3 it doesn't prompt for code! And no key combos are working due to change in dialer. I am stuck and gave no idea how to fix it. Imei is valid and I'm pretty sure I'm running stock 4
3. Help anyone? Please? ???
Was the phone running a completely stock rom when you tried to enter the code? How many times did you try to enter the code?

I just want to unlock the sim of my T-mobile SGH-M919 to be able to us it outside US

Hello,
I tried everything to unlock SGH-M919 - M919TMBFOK3 , The most popular way I tried was to downgrade to 4.4.2 then root it with chainfire, downgrading the modemsto MDL then using regionlock away and the *#0011# sequence as in this thread:
http://forum.xda-developers.com/galaxy-s4-tmobile/general/unlock-method-m919-m919n-t3138503
However, I still can't get my phone to work with other sim cards. Even though I don't get the interface asking for a code to unlock it after I reboot, it still says invalid sim card.
Is there any definite way to solving my problem? I would be very grateful for your help!
Is there a reason you can't use an unlock code from TMo? The phone being this old, plus you explaining you're doing it to use it outside the US, I'm pretty sure TMo will hook you up with a code that works in stock.
The reason I ask is because I had the same issue a year ago when I travelled to the UK for work. I felt naked without Google Maps :crying:
Once the phone is running 4.3 or newer bootloader, you can't use the dialler method.
Yes, downgrade to stock 4.4.2, downgrade modem, root, run regionlockaway, flash stock rom, and phone should be network unlock.

How to unlock my phone SGH-I747M?

Hi i'm new, sorry if the post is in the wrong section or it has already been spoken on an other thread but i have a lot of trouble unlocking my SGH-I747M.
Ok so it all begins when my girlfriend wich is Canadian gave me the phone because mine broke.
She told me it was locked with the company koodo and it's starting to be kind of annoying.
I am from France so there is no way i can take a contract with koodo to unlock the phone.
I contacted them to ask if they could unlock it (even with money), they basicly told me that my girklfriend had to subscibe again to one of their offers to be able to unlock it.
They also told me that any company could unlock the phone if i offer them the price but none of them was able to unlock the phone, even with the EIM codes on the internet ...
so i am basicly here with a dead phone so i needed some of your guy's advice on how to be able to put a french sim card in this Canadian phone.
That would be a huge help!
Version of the phone: android 4.4.2
is it possible to downgrade it to a older version so i could try to unlock it?
Thanks for your time and have a nice day
ps: If the thread is in the wrong section, could you indicate me in what section i would need to post this?
You must be running a stock rom and you will have to buy a code to network unlock the phone.
I recommend looking on eBay for a seller with good feedback and a low price.
I have used this seller several times with no official: http://www.ebay.ca/itm/Telus-Koodo-...623642?hash=item211efa095a:g:gw0AAOSwnHZYg-5W
The Telus/Koodo forum is here: https://forum.xda-developers.com/galaxy-s3-att
Thread moved to proper forum

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