Database Users

Help switch USCC gs3 to Verizon gs3

So I US Cellular is done in Chicago and I refuse to purchase another phone if I can change over with my current one.
I am already rooted and wondering what I would need to do attempt to get the cmda to recognize Verizon. PLEASE HELP!
Sent from my SCH-R530U using xda app-developers app

Looks like you're in the wrong section. This is for the international GS 3 rather than any us variant so any help probably will either be a. Harmful to the device or b. Not helpful at all
Sent from my Nexus 7 using xda app-developers app

[Q] "Unlocking" AT&T S4 questions

Now I have had previous Samsung Galaxy phones that I have rooted and I'm very familiar with the whole process.
However, I have never used a phone that was bought for one carrier and used on another.
I'm planning to purchase an AT&T Galaxy S4 and using it on the T-Mobile network (wish me luck).
What would be the best way to unlock the AT&T phone to use a T-Mobile SIM?
http://forum.xda-developers.com/showthread.php?t=2285431​This is what I have found, but I heard something about a USB unlock being more successful.
Once the phone is "Unlocked", and I root the device, should I be using the AT&T ROMs section, or T-Mobile? I'm going to guess AT&T because they are somewhat hardware dependent?
Lastly, will this AT&T version limit my signal in anyway (not accounting for the already possibility of bad signal)?
Meaning the AT&T version only picks up the lesser of the T-Mobile bands or signals.
If I sound like an idiot, I apologize. I've done some research and cant seem to find the right keywords to search.
Thanks in advance for any information.

Questions and help issues go in Q&A and Help section
Thread moved
Thanks
FNM

I'd advise you buy a T-Mobile Galaxy s4. Our bootloader is locked and the newest updafe only has a root exploit and
Sent from my SAMSUNG-SGH-I337 using xda app-developers app

I am using i337 with tmobiles sim card. I get 4g at over 10mbs and even over 20mbs on some good dsys. I usually use att roms although I've found that i9505 and tmobile work too. Just have to stick with loki'ed kernels. Hope this helps.

It does, thank you.
So look for a ROM with Loki kernels?
And which unlock method did you use to get the T-Mobile SIM to work?
The one above or a different one
Thanks for the info
Sent from my SPH-L710 using XDA Premium 4 mobile app

Make sure you get one that is not MF3
Sent from my SAMSUNG-SGH-I337 using xda app-developers app

Unlocking my ATT S4

I really want to sell my phone. I know I can get more money for it if us unlocked. Ive already googled how to unlock it and it seems pretty simple. My question is should I unlock it before its sold? Never unlocked a phone lol so sorry for this question.
Sent from my SGH-i337 using Tapatalk 2

Unlocked always adds a little bit more value to a device.
Why not?

theexel said:
Unlocked always adds a little bit more value to a device.
Why not?
Click to expand...
Click to collapse
True lol. Ill read up on it a little more.
Sent from my SGH-i337 using Tapatalk 2

I just got an ATT S4 I was planning to end my postpaid account with ATT and using prepaid.
I read in a forum somewhere that says you have a better chance of getting your non-iPhone device unlocked thru ATT international chat.
I tried numerous times with all my devices thru ATT unlocking to no avail. This time i tried the international chat just for the hell of it. Gave her my info and etc and what do know? It worked, she gave me instructions and the unlocked code. Another shocker is that this phone isn't even registered under my account.
Sent from my SAMSUNG-SGH-I337 using xda app-developers app

Question. I went through the procedure of unlocking my phone. I dont have another sim card to test if it worked. Anyihe know another way?
Sent from my SAMSUNG-SGH-I337 using Tapatalk 2

Will the Bell S3 work on Rogers/fido network & Unlock?

Like the title says it all, I'm about to sell my Galaxy S3 from Bell Mobility network to someone on the Fido network.
I just want to confirm that it will work? Also, I'm looking to unlock it, is there a good place to buy an unlock code? Don't want to waste my time to try the methods on here as I don't have the time to downgrade.
Thanks,
JP

This is the galaxy s4 thread not s3
Sent from my SAMSUNG-SGH-I337 using xda app-developers app

can att unlock phone can be moved to t-moblie

Just wondering if it can be done?

Simple answer, yes.
Sent from my SAMSUNG SGH-I337 using XDA Premium 4 mobile app

graydiggy said:
Simple answer, yes.
Sent from my SAMSUNG SGH-I337 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
but the hard answer is how

There are a few threads about how. Search and ye shall find.
Sent from my SAMSUNG SGH-I337 using XDA Premium 4 mobile app

You just need to factory unlock it. If you can't get the unlock code from att there are YouTube videos of how to do it for free. I did it for free with the method of restoring the golden backup. Only took 5 mins.
sent from a Galaxy S4

Free methods don't work on newer firmwares. Only AT&T or a paid company can unlock it.
Sent from my SAMSUNG SGH-I337 using XDA Premium 4 mobile app

Yeah I was thinking about that as I was writing it to him. When I did it I was on 4.2 with the first build the phone came with. I think amdl. Either way you got options bud. You can buy a unlock code from amazon or eBay for really cheap
sent from a Galaxy S4

You can try this link https://www.att.com/deviceunlock/client/en_GB/

I did
I did it a month ago and it works well. Get an unlock doe from the website that costs $30 if you cant find a free way, i tried the one for $6 and they sent me my money back 2 days later because they couldn't do it. Once unlocked use the APN from these settings:
http://www.4gtricks.com/2013/04/t-mobile-4g-apn-t-mobile-4g-apn-settings.html
I tried all of the other ways for it and none of get the full LTE speeds like that one.