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Old June 3rd, 2013, 05:49 PM   #1 (permalink)
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Default Verizon's Galaxy S3 4G LTE - Carrier Unlock

I've been reading contradicting forums, one after another about "cant do it, can do it" for Carrier Unlocking this phone. So, I would greatly appreciate if someone could point me in the right direction for Carrier Unlocking my phone.

Verizon Samsung Galaxy S3 4G LTE
Model: SCH-I535
Android Version: 4.1.2

Is it possible to switch my carrier to Straight Talk, AT&T Network?

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Old June 3rd, 2013, 08:22 PM   #2 (permalink)
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If it's under a contract, it can't be unlocked legally.

As far as my knowledge goes, it can't be switched to a gsm carrier, even though verizon phones have sim slots, that's just for the 4g lte technology.
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Old June 3rd, 2013, 09:53 PM   #3 (permalink)
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I'm pretty sure this changed some months ago. I spoke to Verizon as I was traveling to England. They said the update required by the phone came out some time ago. I can tell you the SIM that came with the phone worked just fine in England on Voda Phone's GSM network.

I don't know if this would mean you could put an AT&T SIM in the phone and it would work.
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Old June 4th, 2013, 12:49 AM   #4 (permalink)
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I've read that there was an update with android v4.1.1 that would allow change over to GSM. Is this true?

I also called Straight Talk, and they said that it was possible. I just needed to unlock it first.
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Old June 4th, 2013, 01:06 AM   #5 (permalink)
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My apologies, I've always heard that the sim slot for Verizon phones was for the 4g technology only.

After some research though, it most definitely is gsm capable, need to have it unlocked as long as it's not under contract. And root to change apn (that's currently locked and can't be changed without root)
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Old June 4th, 2013, 07:06 AM   #6 (permalink)
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The phone is not under contract.

Anyone know of a thread around for the carrier unlocking process?
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Old June 4th, 2013, 09:13 AM   #7 (permalink)
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Quote:
Originally Posted by mtnviews3 View Post
I'm pretty sure this changed some months ago. I spoke to Verizon as I was traveling to England. They said the update required by the phone came out some time ago. I can tell you the SIM that came with the phone worked just fine in England on Voda Phone's GSM network.

I don't know if this would mean you could put an AT&T SIM in the phone and it would work.
I will be traveling to England and France sometime in Sept. Don't mean to hijack this thread but if u could point me to where I should be to get some info regarding the procedure, I would greatly appreciate.

JM
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Old June 5th, 2013, 03:59 AM   #8 (permalink)
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Update device to jellybean 4.1.2 and it is factory unlocked by default....peeps have been unlocking this device and using it in other countries for months just change APN settings..theres a tutorial on XDA that will walk u through it..u prob will not get great data speeds on most carriers but its doable for those that want/need it

http://androidrays.com/518/change-cdma-verizon-galaxy-s3-to-gsm-handset-by-hack/
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Old June 5th, 2013, 10:22 PM   #9 (permalink)
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I simply contacted Verizon and asked about use in England. I signed up for a "discount" plan which reduced phone calls from $1.30 to .99 per minute. They had me make one small config change on the phone related to roaming - which they said wasn't required but might improve roaming. The phone was already unlock from a previous SW update.

This kept my same phone number. If you don't care about that you can probably get a local SIM in Europe for cheaper calls.
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Old June 14th, 2013, 05:04 PM   #10 (permalink)
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Confused Sim Unlocking Galaxy S3

Hello,

I also have the same phone as this thread, i have rooted it. I am currently using the straight talk Sim in the galaxy and after changing the APN setting with apn manager I am able to get Edge signal for data, so i can text, call, and even send pics but it takes some time and full service. This morning i accessed the hidden menu and tried change the Network Lock Options, but once I get that far the options aren't there. I opened another option below the network lock that is called Network control, and found a few different options here and one was a GSM option, i was wondering if i selected it would it do anything? I really want to unlock it so I can get 4g or even 3g, edge is useless , especially with varying service amounts since i live in the northern California mountains. Please let me know if anyone has any suggestions. Thanks!
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Old June 15th, 2013, 09:34 PM   #11 (permalink)
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As of now the only legal way to unlock in the US is through the Carrier. Verizon will need to do it for you.
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Old June 15th, 2013, 09:40 PM   #12 (permalink)
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For the record: thats a crazy and unfair law

EDIT: this is the view of me and me only. It does not in any way reflect nor express the views of androidforums.com and/or owners/members of therein
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Old September 25th, 2013, 01:54 AM   #13 (permalink)
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it is not only possible it is very doable i am currently using walmarts family mobile (GSM)on my verizon razr xt926 if i can do it on mine it can most definately be done on close to if not all verizon lte sim enabled droids it is simply a matter of editing a couple of build properties and switching the network mode as is applicable
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Old September 29th, 2013, 07:17 PM   #14 (permalink)
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The Verizon S3 is already unlocked. Just like the iPhone 5. Put your Tmobile or ATT SIM in and after a few seconds it should ask if you want to enable Global Mode or something similar. Say yes. Then go into settings and Mobile Networks.. if it doesn't ask you then somewhere in setting> mobile network is a way to change to Global mode. You will then be able to use the phone on Tmobile or ATT. The data may NOT work though. To get the data to work before 4.3 you must root the phone and download APN Manager from the app store to create the APN needed to work. For some reason you cannot create a new APN in the stock rom of the verizon S3 below 4.3. Or upgrade it to 4.3 and root is not required.

Easiest way to upgrade is to download Samsung Kies on your pc and hook your phone to it.

Hope this helps.
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Old November 9th, 2013, 11:05 PM   #15 (permalink)
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Quote:
Originally Posted by lilc420 View Post
The Verizon S3 is already unlocked. Just like the iPhone 5. Put your Tmobile or ATT SIM in and after a few seconds it should ask if you want to enable Global Mode or something similar. Say yes. Then go into settings and Mobile Networks.. somewhere in there is a setting to change from Global Mode to CDMA Mode to GSM Mode. Choose GSM Mode. You will then be able to use the phone on Tmobile or ATT. The data may NOT work though. To get the data to work you must root the phone and download APN Manager from the app store to create the APN needed to work. For some reason you cannot create a new APN in the stock rom of the verizon S3.

Hope this helps.


do you know a link to instruct me on how to root this phone!?! so I can use this technique!! or if any one else does!!??!! I would greatly appreciate it!!
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Old November 10th, 2013, 08:49 AM   #16 (permalink)
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Quote:
Originally Posted by lilc420 View Post
The Verizon S3 is already unlocked. Just like the iPhone 5. Put your Tmobile or ATT SIM in and after a few seconds it should ask if you want to enable Global Mode or something similar. Say yes. Then go into settings and Mobile Networks.. somewhere in there is a setting to change from Global Mode to CDMA Mode to GSM Mode. Choose GSM Mode. You will then be able to use the phone on Tmobile or ATT. The data may NOT work though. To get the data to work you must root the phone and download APN Manager from the app store to create the APN needed to work. For some reason you cannot create a new APN in the stock rom of the verizon S3.

Hope this helps.
So true. Went to England and switched Sims: could make phone calls and use texts, but no Data. Annoying, but still useful and worth the 20 pounds it cost for the month on Vodaphone.

JM
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Old April 9th, 2014, 06:27 PM   #17 (permalink)
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Quote:
Originally Posted by lilc420 View Post
The Verizon S3 is already unlocked. Just like the iPhone 5. Put your Tmobile or ATT SIM in and after a few seconds it should ask if you want to enable Global Mode or something similar. Say yes. Then go into settings and Mobile Networks.. somewhere in there is a setting to change from Global Mode to CDMA Mode to GSM Mode. Choose GSM Mode. You will then be able to use the phone on Tmobile or ATT. The data may NOT work though. To get the data to work you must root the phone and download APN Manager from the app store to create the APN needed to work. For some reason you cannot create a new APN in the stock rom of the verizon S3.

Hope this helps.
The s3 I have is not unlocked, when I put in the att sim, it says non Verizon sim, turn off and remove. I have tried using the unlock code to the hidden menu *#197.... that works for jellybean 4.1.1, but won't work for 4.3

I have tried "tricking" the phone by changing from global mode to gsm and then inserting the att sim.

I called three Verizon stores today and then the 800 number and they won't unlock the phone.
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Old April 9th, 2014, 07:04 PM   #18 (permalink)
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Upgrade the phone to 4.3 and you no longer have to root it. Just insert your SIM card. Go to settings and put in global mode. Then go to apn settings and set your carrier apn settings. ALL Verizon galaxy S3 and newer are factory unlocked right out of the box.

Easiest way to upgrade to 4.3 is to download Samsung Kies on your pc and hook your phone to it.

I run a cell phone shop and we see these phones daily.
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