[Q] Will installing a custom ROM on a T-Mobile S4 unlock it - T-Mobile Samsung Galaxy S 4

I've just gotten a T-Mobile S4, I've already tried the easy unlocking instructions with no luck. If I install one of the custom ROMs on the phone will this automatically unlock it so that I can use it with another carrier's sim card?

No
There's places only that you can get unlock code for cheap. Like $5-$10

You don't need an unlock code. There are guides here to do it for free

faiyo said:
You don't need an unlock code. There are guides here to do it for free
Click to expand...
Click to collapse
He said "I've just gotten a T-Mobile S4, I've already tried the easy unlocking instructions with no luck."
Unfortunately, flashing a custom ROM will not unlock it.

Exel said:
He said "I've just gotten a T-Mobile S4, I've already tried the easy unlocking instructions with no luck."
Unfortunately, flashing a custom ROM will not unlock it.
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Click to collapse
Oh i missed that..
So the firmware menu doesn't say unlocked??? Are you sure it's not just an apn problem

baseballfanz said:
No
There's places only that you can get unlock code for cheap. Like $5-$10
Click to expand...
Click to collapse
Opppps ment to quote not thank you.lol
Unfortunately that method does not work for everyone.
☞Sent from here☜

didn't work for me either... did work on older sgs III... got sw and unlocked with cable.
Sent from my SGH-M919 using Tapatalk 2

Related

T-Mobile S4 - Bootloader Locked or Unlocked?

I'm on T-Mobile's website ready to order the S4 but I just want to know before I do if anyone knows for sure whether T-Mobile will lock the bootloader like AT&T.
Thanks!
sunilvarma said:
I'm on T-Mobile's website ready to order the S4 but I just want to know before I do if anyone knows for sure whether T-Mobile will lock the bootloader like AT&T.
Thanks!
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Click to collapse
yes it will , so basically no root soon
bikrame said:
yes it will , so basically no root soon
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Click to collapse
source for this info? most are saying ATT/Verizon are locked the same whereas Sprint/T-Mob are locked the same. Sprint already has CM10.1 alphas...
bikrame said:
yes it will , so basically no root soon
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Click to collapse
http://forum.xda-developers.com/showthread.php?t=2258068
Check post #3, he says his is unlocked using the motochopper.
Obtaining root is not related to the bootloader in any way.
According to this article - http://www.xda-developers.com/android/official-and-confirmed-att-galaxy-s-4-is-bootloader-locked/ - start of paragraph 3 - it's unlocked.
Still waiting for confirmation.
My bad. When I posted I read somewhere its locked lol
bikrame said:
My bad. When I posted I read somewhere its locked lol
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Click to collapse
Most likely that may have been in one of my posts.. at the time AT&T _did_ have a verifiable bootloader (I wouldn't call it locked, per se; it just checks the boot and recovery images to make sure it's AT&T approved and is good on their network. and if AT&T images aren't used (or otherwise fooled), it'll result in a brick).
and that's awesome that the motochopper can be used to unlock bootloaders now.. motorola xoom (IIRC) all over again...
adventure_of_link said:
and that's awesome that the motochopper can be used to unlock bootloaders now..
Click to expand...
Click to collapse
Motochopper is a root exploit. It does not unlock bootloaders.
Can anyone confirm this 100% one way or the other?
GNex // Toro // CodeX // AK exp // Hue

Help on unlocking!

Hello, I have an S3 locked to Telus running 4.3. I want to factory unlock my phone but everywhere I go they mention that if my phone has been previously rooted then I can't unlock it? Please help!
Ali7000 said:
Hello, I have an S3 locked to Telus running 4.3. I want to factory unlock my phone but everywhere I go they mention that if my phone has been previously rooted then I can't unlock it? Please help!
Click to expand...
Click to collapse
You can only unlock the phone via code. You cannot use the free unlock method.
audit13 said:
You can only unlock the phone via code. You cannot use the free unlock method.
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Click to collapse
I am not talking about the free unlock method, I am looking for a cheap online website that I can get an unlock code from.
I would search ebay for cheap codes. Places like mobileincanada.com are very reliable and reputable but not cheap. Telus phones should be cheaper than Bell.
I've used fastgsm.com in the past to unlock Samsung phones for 15 USD. They unlock via software and it is permanent.
audit13 said:
I would search ebay for cheap codes. Places like mobileincanada.com are very reliable and reputable but not cheap. Telus phones should be cheaper than Bell.
I've used fastgsm.com in the past to unlock Samsung phones for 15 USD. They unlock via software and it is permanent.
Click to expand...
Click to collapse
Are you 100% sure that this will unlock my rooted S3 on Telus?
Ali7000 said:
Are you 100% sure that this will unlock my rooted S3 on Telus?
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Click to collapse
That I don't know. You may have to be completely stock to get the prompt to enter the unlock code.
audit13 said:
That I don't know. You may have to be completely stock to get the prompt to enter the unlock code.
Click to expand...
Click to collapse
I am on this stock rom: http://forum.xda-developers.com/showthread.php?t=1739426
The ROMs are stock other than being pre-rooted. I'm not sure if you will get prompted to enter the unlock code.
You could try a non-Telus sim to see what happens. Just don't enter a code so you retain all unlock attempts before hardlocking the phone.
audit13 said:
The ROMs are stock other than being pre-rooted. I'm not sure if you will get prompted to enter the unlock code.
You could try a non-Telus sim to see what happens. Just don't enter a code so you retain all unlock attempts before hardlocking the phone.
Click to expand...
Click to collapse
I tried the fido sim and the "enter unlock code screen" popped up.
Ali7000 said:
I tried the fido sim and the "enter unlock code screen" popped up.
Click to expand...
Click to collapse
That's a good sign. Would an unlock code directly from Telus be cheaper?
audit13 said:
That's a good sign. Would an unlock code directly from Telus be cheaper?
Click to expand...
Click to collapse
No, I have 2 S3's that I want to unlock and paying $100 in order to unlock both is not an option. Know any cheaper ways?
Ali7000 said:
No, I have 2 S3's that I want to unlock and paying $100 in order to unlock both is not an option. Know any cheaper ways?
Click to expand...
Click to collapse
Ouch. Are both phones on 4.3? Mobileincanada.com is very good and reliable. Type in your imei and it'll give you the cost to unlock via code.
audit13 said:
Ouch. Are both phones on 4.3? Mobileincanada.com is very good and reliable. Type in your imei and it'll give you the cost to unlock via code.
Click to expand...
Click to collapse
Cheaper method?
Ali7000 said:
Cheaper method?
Click to expand...
Click to collapse
I can only suggest eBay for possibly cheaper codes.
audit13 said:
I can only suggest eBay for possibly cheaper codes.
Click to expand...
Click to collapse
Thanks man, I was able to find a way to unlock my phone thanks to you. I'll be purchasing a code from an eBay top seller.

[Q] How do I unlock my phone on 4.3? Is there a rom I can install to unlock it?

Is there? Sorry for posting again. I just want to unlock my phone so badly.
MaknaeAJ said:
Is there? Sorry for posting again. I just want to unlock my phone so badly.
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I have seen a number of the more experienced forum members answer this by saying that once you are on 4.3 with the official MJB bootloader you will need to use one of the pay services to sim unlock your phone.
dawgdoc said:
I have seen a number of the more experienced forum members answer this by saying that once you are on 4.3 with the official MJB bootloader you will need to use one of the pay services to sim unlock your phone.
Click to expand...
Click to collapse
So there's nothing I can do then? ._.
MaknaeAJ said:
So there's nothing I can do then? ._.
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Click to collapse
Not without putting out the dollars.
I have read that some XDA members that are using the i747 with AT&T were able to get the unlock code for free directly from AT&T..
audit13 said:
I have read that some XDA members that are using the i747 with AT&T were able to get the unlock code for free directly from AT&T..
Click to expand...
Click to collapse
How do they do that? o.o
MaknaeAJ said:
How do they do that? o.o
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Click to collapse
You can request the unlock code via this URL ...https://www.att.com/deviceunlock/client/en_US/
I haven't had any luck with them though using this request form as each time I've tried it's been with a phone I purchased from the secondary market and then they reply that the details on record don't match mine. Congress recently approved a bill making it legal to unlock your phone and I understand the new bill also includes a provision allowing third-parties who obtain the phone legally to request the unlock code. So perhaps things will be easier for everyone when the new bill becomes law and takes full effect.
Larry2999 said:
You can request the unlock code via this URL ...https://www.att.com/deviceunlock/client/en_US/
I haven't had any luck with them though using this request form as each time I've tried it's been with a phone I purchased from the secondary market and then they reply that the details on record don't match mine. Congress recently approved a bill making it legal to unlock your phone and I understand the new bill also includes a provision allowing third-parties who obtain the phone legally to request the unlock code. So perhaps things will be easier for everyone when the new bill becomes law and takes full effect.
Click to expand...
Click to collapse
Oh, thanks, I'll try this out because I been googling stuff and I think I can get a code from At&t. Well hopefully.
MaknaeAJ said:
Oh, thanks, I'll try this out because I been googling stuff and I think I can get a code from At&t. Well hopefully.
Click to expand...
Click to collapse
I hope AT&T is cooperative. I am still able to go back to 4.1.1 on my SGS3 to unlock, but I never unlocked my Captivate - which is still functional. I keep it as a backup. It would be nice to have it unlocked.
dawgdoc said:
I hope AT&T is cooperative. I am still able to go back to 4.1.1 on my SGS3 to unlock, but I never unlocked my Captivate - which is still functional. I keep it as a backup. It would be nice to have it unlocked.
Click to expand...
Click to collapse
How were you able to go back to 4.1.1? Right now im on 4.3 and people are saying not to downgrade or it'll brick your phone. All I wanna do is go back to 4.1.1 to unlock my phone and upgrade to 4.3.
MaknaeAJ said:
How were you able to go back to 4.1.1? Right now im on 4.3 and people are saying not to downgrade or it'll brick your phone. All I wanna do is go back to 4.1.1 to unlock my phone and upgrade to 4.3.
Click to expand...
Click to collapse
I will be able to go back to 4.1.1 because I am still on 4.1.2. I never allowed my phone to take the 4.3 update.
dawgdoc said:
I will be able to go back to 4.1.1 because I am still on 4.1.2. I never allowed my phone to take the 4.3 update.
Click to expand...
Click to collapse
Oh I see, thanks anyway. Looks like im stuck on 4.3 :|
dawgdoc said:
I hope AT&T is cooperative. I am still able to go back to 4.1.1 on my SGS3 to unlock, but I never unlocked my Captivate - which is still functional. I keep it as a backup. It would be nice to have it unlocked.
Click to expand...
Click to collapse
Check out the captivate forum. You should be able to unlock it for free
audit13 said:
Check out the captivate forum. You should be able to unlock it for free
Click to expand...
Click to collapse
Been perusing them for a bit. Not having much luck implementing for the moment. I think that is because I didn't have a sim in the phone. It's not a big issue to me at the moment. As a backup phone I don't actually need to unlock if I go with AT&T or even if I switch it to Straight Talk. Of course, it would need to be unlocked to use other prepaid options. Anyway, I subscribed to the threads I will revisit when necessary.

Factory Unlocked?

I read somewhere on google that the T-Mobile version was going to come factory unlocked. Can anyone comment?
When where ? Can you add the link
Sent from my LG-D851 using XDA Free mobile app
You mean the bootloader is factory unlocked? If so, then yes, it is.
blindguyinanorgy said:
I read somewhere on google that the T-Mobile version was going to come factory unlocked. Can anyone comment?
Click to expand...
Click to collapse
The bootloader is unlocked on T-Mobile
I find it odd that the key was already turned. Normally they have the door locked but give you the key to use if you so choose. Honestly the way this phone came out without any kind of safety for the boot partitions is asking for a malicious app/virus to brick phones. Unless purple Drake did the factory unlock but I don't think they stated that.
ThePagel said:
I find it odd that the key was already turned. Normally they have the door locked but give you the key to use if you so choose. Honestly the way this phone came out without any kind of safety for the boot partitions is asking for a malicious app/virus to brick phones. Unless purple Drake did the factory unlock but I don't think they stated that.
Click to expand...
Click to collapse
Sent from my LG-D851
No they stated that when they were exploring root and unlock methods they were surprised to find out that the Tmo version was already unlocked... I would think that raises the chances that LG releases a key to unlock other variants as well? ... other than at&t and Verizon that is...
Dog_Daze said:
Sent from my LG-D851
No they stated that when they were exploring root and unlock methods they were surprised to find out that the Tmo version was already unlocked... I would think that raises the chances that LG releases a key to unlock other variants as well? ... other than at&t and Verizon that is...
Click to expand...
Click to collapse
Yeah and you know this might sound silly but I wonder if anyone has tried the normal unlock commands in fastboot for the other phones. Development isn't booming like on samsung or htc phones so you never know. Pretty sure somebody out there has tried I mean somebody had to right? Maybe Ill try to lock my bootloader in fastboot and see what happens. I would like to have it locked when I'm not modding that's just good practice.
*Edit
locked bootloaders and encrypted bootloaders are different just wanted to make sure everyone reading this that didn't know that now knows.
As always people keep getting confused between sim unlock and bootloader unlock.
Sent from my D6503 using Tapatalk
Can confirm. Got T-mo G3 with out knowing. Feels like I won the lotto.
The D851 variant ships with an unlocked bootloader, but SIM-locked to T-Mobile. Just to make it 100% clear.
siraltus said:
The D851 variant ships with an unlocked bootloader, but SIM-locked to T-Mobile. Just to make it 100% clear.
Click to expand...
Click to collapse
I was able to sim unlock my G3 for like $3...there are several posts in the forums with similar success stories.
I used unlockcode247 and it worked like a charm. I got the code in under 15 minutes. $2. Can't go wrong.

Unlocking T-Mobile M9 phone?

I have a question and could find an answer, well maybe a few... First if you have an unlocked version of the m9 directly brought from HTC all updates come from them not any carriers? With that being said if you by a T-Mobile version and get an unlock code from them will updates still come from them or HTC?
madskills843 said:
I have a question and could find an answer, well maybe a few... First if you have an unlocked version of the m9 directly brought from HTC all updates come from them not any carriers? With that being said if you by a T-Mobile version and get an unlock code from them will updates still come from them or HTC?
Click to expand...
Click to collapse
HTC updates the phones sold through HTC. Any phone with carrier branding has HTC submitting their software to the carrier, and then it's released after carrier approval. It makes no difference if the phone is locked, unlocked, used on a different network, etc.
The only way you can go about getting updates directly from HTC in the past is through S-Off and a CID change, effectively changing your device ID, but A: I'm not sure if this is still the case and B: If you're asking the question that you asked, this is going to be a bit too complicated for me to explain at the moment. So the simple answer is No.
madskills843 said:
I have a question and could find an answer, well maybe a few... First if you have an unlocked version of the m9 directly brought from HTC all updates come from them not any carriers? With that being said if you by a T-Mobile version and get an unlock code from them will updates still come from them or HTC?
Click to expand...
Click to collapse
If you unlock the phone you will have to manually update the phone. If you stay stock you will get updates from T-Mobile, although they will lag the official (and XDA unofficial) releases by a substantial time.
Most folks unlock because they want to flash a custom ROM anyway, and will get updates on that ROM, rather than HTC or T-Mobile.
stevedebi said:
If you unlock the phone you will have to manually update the phone. If you stay stock you will get updates from T-Mobile, although they will lag the official (and XDA unofficial) releases by a substantial time.
Most folks unlock because they want to flash a custom ROM anyway, and will get updates on that ROM, rather than HTC or T-Mobile.
Click to expand...
Click to collapse
hmmmmm actually depends on which UNLOCK. If he meant unlocking it to make it carrier free but leaving everything stock then it'll update automatically. If he unlocks the bootloader but still remains stock without changing anything then it'll be auto still. I believe the only time you need to manually update is when you alter the recovery partition of the phone (installing custom recovery CWM/TWRP/etc) which means you'll probably run a custom rom, which also prevents automatic updates.
Teo032 said:
hmmmmm actually depends on which UNLOCK. If he meant unlocking it to make it carrier free but leaving everything stock then it'll update automatically. If he unlocks the bootloader but still remains stock without changing anything then it'll be auto still. I believe the only time you need to manually update is when you alter the recovery partition of the phone (installing custom recovery CWM/TWRP/etc) which means you'll probably run a custom rom, which also prevents automatic updates.
Click to expand...
Click to collapse
I'm assuming he meant unlock the bootloader, not the carrier. But I personally would not go to the trouble of unlocking the bootloader unless I was going to go custom ROM.
stevedebi said:
I'm assuming he meant unlock the bootloader, not the carrier. But I personally would not go to the trouble of unlocking the bootloader unless I was going to go custom ROM.
Click to expand...
Click to collapse
yeah I got that, but he said unlock code and from T-mobile so I deduced it to carrier unlocking lol.
Well I actually already unlocked the boot loader and using custom ROMs so not that be of a deal more so for my understanding. So if everything was stock and just got an unlock code from T-Mobile to unlock the device and say used the phone on AT&T or Verizon where would the updates come from ? The carrier you are on at the time or HTC?
By the way that's for the help and responses guys!
madskills843 said:
Well I actually already unlocked the boot loader and using custom ROMs so not that be of a deal more so for my understanding. So if everything was stock and just got an unlock code from T-Mobile to unlock the device and say used the phone on AT&T or Verizon where would the updates come from ? The carrier you are on at the time or HTC?
By the way that's for the help and responses guys!
Click to expand...
Click to collapse
You are not going to get updates for a T-Mobile phone while on an AT&T network, even if you stayed stock. I don't think the download would work, and even if it did the ROM would not work with your variant. I think they will detect that your phone is not AT&T and not even offer the update.
It sounds like you have installed a custom ROM. In that case you won't get OTA at all, from anywhere; you simply update the ROM when the developer releases a new version.
stevedebi said:
You are not going to get updates for a T-Mobile phone while on an AT&T network, even if you stayed stock. I don't think the download would work, and even if it did the ROM would not work with your variant. I think they will detect that your phone is not AT&T and not even offer the update.
It sounds like you have installed a custom ROM. In that case you won't get OTA at all, from anywhere; you simply update the ROM when the developer releases a new version.
Click to expand...
Click to collapse
Yea I got that part was more just to understand how that process works thanks for the help
LOck again?
madskills843 said:
Yea I got that part was more just to understand how that process works thanks for the help
Click to expand...
Click to collapse
sorry for my bad English , I unlocked my htc m9 tmobile changing the original rom, then I could enter the unlock code and it works with other networks , my question is , if I ever install the original version of tmobile is it blocked again ?
chamosolano said:
sorry for my bad English , I unlocked my htc m9 tmobile changing the original rom, then I could enter the unlock code and it works with other networks , my question is , if I ever install the original version of tmobile is it blocked again ?
Click to expand...
Click to collapse
Who did you buy your unlock code from?and how much did it cost. Thanks
Sent from my SM-G920T using XDA Free mobile app
18 dolar but your need change original software
You can get an unlock code from T-Mobile if you meet their requirements
Who did you buy your unlock code from?Do you have a link? Thanks
Sent from my HTC One M9 using XDA Free mobile app
chamosolano said:
sorry for my bad English , I unlocked my htc m9 tmobile changing the original rom, then I could enter the unlock code and it works with other networks , my question is , if I ever install the original version of tmobile is it blocked again ?
Click to expand...
Click to collapse
SO did you have to root your m9 before you could enter your unlock code?please explain how you did it.I have the unlock code for my m9.I just can't get it to come up on the key pad to say enter unlock code.I put a Att sim card in my device.please explain what I need to do. Thanks
Sent from my SM-G920T using XDA Free mobile app
chamosolano said:
sorry for my bad English , I unlocked my htc m9 tmobile changing the original rom, then I could enter the unlock code and it works with other networks , my question is , if I ever install the original version of tmobile is it blocked again ?
Click to expand...
Click to collapse
Yes did the same and still unlocked after restoring my stock rooted T-Mobile nandroid

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