Need help SIM unlocking - T-Mobile LG G3

I searched the threads, I searched the google. I can't seem to get it to the point of prompting for a SIM unlock code.
The error I'm getting when I go to "Network Lock" or "Service Provider Lock" is "This phone is permanently locked and can not be unlocked."
Picture attached.

Are you on stock or a custom AOSP ROM?

Critical Detox said:
Are you on stock or a custom AOSP ROM?
Click to expand...
Click to collapse
I'm on a completely stock rom.

Is it a GSM model G3?

Yes. The D851

What sim are you trying to use? Did u purchase this phone brand new from the store?
Sent from my LG-D851 using XDA Free mobile app

Well, the phone sold, so it's no longer my problem. The guy who bought it is on T-Mobile, so whatever.

Related

Can't unlock my phone.

Hi all,
I tried to unlock my phone with the code provided by cellunlocker.net and no luck.
Method 1: when I insert my t mobile card, it doesn't ask for an unlock code( it should cuz this is a non art sim card right?)
Method 2: after punch in #7465625*638*(my unlock code)#. Nothing happens. (It should say something like unlock successful or not right?)
Heck even I can't check the lock status of my phone. I type in *#7465625# and didn't bring up anything.
Method 3: i type in #7465625*638*# and wait for it to ask the unlock code. It did nothing. Didnt ask for anything.
How can I enter my code if my phone doesn't ask for it. And it locked cuz i can't use t mobile sim.when I inserted t mobile sum it says no sim card.
Plz help. Any ideas or advice would be greatly appreciated.
My phone is att i747. 4.0.4. Baseband i747uclh9.
Sent from my SGH-T959 using Tapatalk 2
I used the following on my S2, when I did, I am pretty sure I saw an option for the S3 as well. Might be worth a shot.
http://forum.xda-developers.com/showthread.php?t=1289395
Also, are you on a stock or custom ROM? I've read that that can be a variable as well.
Sent from my SGH-I747 using xda app-developers app
cdjaney said:
I used the following on my S2, when I did, I am pretty sure I saw an option for the S3 as well. Might be worth a shot.
http://forum.xda-developers.com/showthread.php?t=1289395
Also, are you on a stock or custom ROM? I've read that that can be a variable as well.
Sent from my SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
Thanks for the response. My phone is running stock ICS.
THe thing that bugs me most is that it doesn't prompt the network unlock screen, hence I can't enter my code.
The link you sent me apparently works for the att s2 sadly.
wavestar92 said:
Hi all,
I tried to unlock my phone with the code provided by cellunlocker.net and no luck.
Method 1: when I insert my t mobile card, it doesn't ask for an unlock code( it should cuz this is a non art sim card right?)
Method 2: after punch in #7465625*638*(my unlock code)#. Nothing happens. (It should say something like unlock successful or not right?)
Heck even I can't check the lock status of my phone. I type in *#7465625# and didn't bring up anything.
Method 3: i type in #7465625*638*# and wait for it to ask the unlock code. It did nothing. Didnt ask for anything.
How can I enter my code if my phone doesn't ask for it. And it locked cuz i can't use t mobile sim.when I inserted t mobile sum it says no sim card.
Plz help. Any ideas or advice would be greatly appreciated.
My phone is att i747. 4.0.4. Baseband i747uclh9.
Sent from my SGH-T959 using Tapatalk 2
Click to expand...
Click to collapse
I wouldn't even waste my time with cellunlocker.net I bought an unlock code from them tried ALL the methods they gave you in the email and they didn't work I eventually took it to a cell repair guy locally and he unlocked it for me for 15 bucks and it was a factory unlock like it would be sim free
Galaxy SIII via XDA premium
I think I will root and put a rom only phone and try the unlock code again. Otherwise I am now having a paperweight.
Sent from my SGH-T959 using Tapatalk 2
I believe i went through them and everything worked just fine
Sent from my SGH-I747 using xda premium
wavestar92 said:
Thanks for the response. My phone is running stock ICS.
THe thing that bugs me most is that it doesn't prompt the network unlock screen, hence I can't enter my code.
The link you sent me apparently works for the att s2 sadly.
Click to expand...
Click to collapse
What I meant was....in the app itself, AFTER I downloaded it from the Play Store, there is a tab to select the S3....inside the app. Did you actually download it and look at it? Just checking.
cdjaney said:
What I meant was....in the app itself, AFTER I downloaded it from the Play Store, there is a tab to select the S3....inside the app. Did you actually download it and look at it? Just checking.
Click to expand...
Click to collapse
Doing a NAndroid and I am going to try this. What sucks is I don't know anyone with a micro sim from Tmobile here at work
EDIT
Didn't work, would not/could not save EFS folder from step 1.
I've run into the same issue here only I got my unlock code straight from ATT. SGSunlocker won't save the efs (even though it's in the save location it doesn't register as being saved) so it won't go to step 2. The unlock code entry sequence you mentioned doesn't work either (that's what ATT gave as well).
Haven't tried a tmobile sim yet though, just got the code yesterday.
nst6563 said:
I've run into the same issue here only I got my unlock code straight from ATT. SGSunlocker won't save the efs (even though it's in the save location it doesn't register as being saved) so it won't go to step 2. The unlock code entry sequence you mentioned doesn't work either (that's what ATT gave as well).
Haven't tried a tmobile sim yet though, just got the code yesterday.
Click to expand...
Click to collapse
Did you guys have any luck UNLOCKing the SG3 ATT version? I am having the same issue...
iali76 said:
Did you guys have any luck UNLOCKing the SG3 ATT version? I am having the same issue...
Click to expand...
Click to collapse
ithink you should try it on any diffrent rom....

Sim card permanently LOCK?

I got an unlock code for Galaxy S3 from TMO. I enter it and it didn't work. It said "network unlock request unsuccessful". I tried it for a couple times, wifi on, different carriers, the code still no good. Called TMO again and they said the code is correct verifying the IMEI. Anyone experience this? (It's on CM 10.2).
They also said my phone most likely permanently LOCKED the sim carrier!!! I was like WTF. I don't even know there's such thing. How is it possible the sim carrier being permanently locked.Now I'm stuck cuz they can only generate one code per IMEI (according to the rep). If I buy an unlock code online, will it work?
If you do too many unsuccessful attempts to unlock the sim then it can permanently lock it.. And did you try it with CM? With the s3 it would only work with touchwiz, try it with that
Sent from my SGH-T999 using Tapatalk
In the GENERAL section for our T999 there is a thread by "mrgodai" named "Sim Unlock".. I just did it last night and it worked. You WILL have to downgrade to 4.1.1 (I used the root66 4.1.1) via ODIN.. Then you follow the OPs instructions, then once it shows SUCCESSFUL you can go back to your backed up nandroid to whatever ROM.. I'm using CM11 4.4.2
Sent from my SGH-T999 using xda app-developers app

Already unlocked sgh-i747 need recover

Hi THERE ,
I have an unlocked AT&T S3 phone and it has been flashed with stock ROM and updates of 4.4.2 has been installed and everything was deleted .
so now , how could i restore or recover the unlock code to use it again to unlock the phone ?
thanks FOR YOUR TIME
ahmad83it said:
Hi THERE ,
I have an unlocked AT&T S3 phone and it has been flashed with stock ROM and updates of 4.4.2 has been installed and everything was deleted .
so now , how could i restore or recover the unlock code to use it again to unlock the phone ?
thanks FOR YOUR TIME
Click to expand...
Click to collapse
If the phone was properly unlocked in the first instance, it would be impossible to lock it back again as the unlocking process should survive any firmware upgrade. I'm somewhat puzzled by your question. Could you please clarify? The only way to test if it is still locked would be to put a non-standard SIM inside (i.e. any non AT&T sim). If it requests an unlock code, then it means it was not unlocked at first.
Yes I did this I put non-att Sim card and it requests an unlock code
Before flashing it was working 100% without att Sim but now NO
Sent from my HUAWEI Y511-U30 using XDA Free mobile app
Were able to use the phone with another carrier's sim card? After fixing your phone, it will only work with an AT&T sim card?
Yes it like this
I am wondering from where could I get back the unlock code.
Any way any idea
Sent from my HUAWEI Y511-U30 using XDA Free mobile app
Did you buy a code? If you did, the unlock code would not have changed as long as the imei did not change.
If it was unlocked when you received the phone, you'll have to buy another unlock code.
I'm surprised it became locked after it was bricked. I didn't think this would happen.
Are there any firmware for unlocked sgh-i747.
Sent from my HUAWEI Y511-U30 using XDA Free mobile app
If you are on a stock ROM that is 4.3 or higher, you must buy a code.

LG G3 SIM unlock problem

My LG G3 is running on stock Android 6 Marshmallow, version V30b-EUR-XX, using custom recovery (TWRP), rooted.
The phone is network locked to my carrier. I got a network unlock code (NCK), however, when I enter the unlock menu (2945#*855#) and go to network unlock option, enter the code I get a "SIM network unlock request unsuccessful" error and the attempt counter does NOT go up (always staying on 1/10).
From that I concluded that the phone isn't even trying to unlock the SIM.
Anyone got an idea on how to proceed?
lg g3
Palaryel said:
My LG G3 is running on stock Android 6 Marshmallow, version V30b-EUR-XX, using custom recovery (TWRP), rooted.
The phone is network locked to my carrier. I got a network unlock code (NCK), however, when I enter the unlock menu (2945#*855#) and go to network unlock option, enter the code I get a "SIM network unlock request unsuccessful" error and the attempt counter does NOT go up (always staying on 1/10).
From that I concluded that the phone isn't even trying to unlock the SIM.
Anyone got an idea on how to proceed?
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Click to collapse
whta is the exact model no of ur lg g3
kalpesh patil said:
whta is the exact model no of ur lg g3
Click to expand...
Click to collapse
LG-D855
lg g3
Palaryel said:
LG-D855
Click to expand...
Click to collapse
before updating 6.0 network was working or not??
or it was locked before purchase
kalpesh patil said:
before updating 6.0 network was working or not??
or it was locked before purchase
Click to expand...
Click to collapse
Bought it on contract from carrier, was locked when I got it. Note that I got my unlock code from the carrier, its valid. I also went ahead a bought a key online from a website selling unlock keys. Got the same key as the one from carrier (wanted to confirm the key is indeed the correct one).
lg g3
Palaryel said:
Bought it on contract from carrier, was locked when I got it.
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bro i will solve ur issue through teamviewer just msg me on my whatsapp no +917744894155
Msging you now
Sent from my LG-D855 using Tapatalk
Solved issue myself now, reflashed clean stock .kdz, it worked after (the issue was probably the custom recovery or the permissive kernel I think)!

UICC Unlock

Hi!
I'm in Brazil and I received a SM-G920P (Sprint Galaxy S6), but I think it is blocked.
When I use the local SIM (Vivo) the "invalid sim" message appears.
I can't use the UICC Unlock function.
The question is: if I flash a custom ROM it will unlock the phone?
Thanks.
No, flashing roms will not unlock the phone. It can be done at most phone shops that provide unlocking or via the idone app/service.
Or, since it is a Sprint variant, call up Sprint, and have them unlock it.
Sent from my SM-G920P using XDA Labs
ewso76 said:
Hi!
I'm in Brazil and I received a SM-G920P (Sprint Galaxy S6), but I think it is blocked.
When I use the local SIM (Vivo) the "invalid sim" message appears.
I can't use the UICC Unlock function.
The question is: if I flash a custom ROM it will unlock the phone?
Thanks.
Click to expand...
Click to collapse
you can do it for free i made tutorialhttps://forum.xda-developers.com/sprint-galaxy-s6/general/sim-unlock-g920p-nougat-supported-t3749416/post75662143#post75662143

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