[Q] Unlocking the S4. - AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin

Hi, I plan to switch over from att to tmobile's 30 dollar, unlimited plan (because i have 200 mb of data for 15 dollars a month on att) and my phone is running 4.2.2 UCUAMF3, should i revert back to an older version and unlock it via hidden menu options in phone menu or what?
please help! thank you!

You cannot downgrade, just buy an unlock code.
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You can also call up AT&T and see if they'll give you an unlock code. They gave me codes for my phone and my wife's phone before we went out of the country on vacation.

Is there a way to enter the code by entering # commands instead of putting another SIM in the phone?
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johnan2112 said:
You can also call up AT&T and see if they'll give you an unlock code. They gave me codes for my phone and my wife's phone before we went out of the country on vacation.
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hi, what number should i call?

Related

[Q] Switching Legend from Bell to Fido

Ok so here's a question.
I have a Rooted with Indigo Bean Legend on the Bell Network.
If I want to use that phone on the FIDO network, I put in my sim card and it asks for a password.
.I thought if it was rooted, then it was automatically "unlocked " to different carriers. I can buy a password and am willing to unlock it myself, but is that what I need to do, and will that mess up any of the rooting that's done?
Rooting doesn't unlock the phone. So yeah you'll have to use an unlock code.
Sent from my HTC Legend using XDA App
Using an unlock code will permanently unlock the phone to be used on any carrier. Rooting does not unlock the phone.
Sent from my Legend using XDA App
marclh1992 said:
Using an unlock code will permanently unlock the phone to be used on any carrier. Rooting does not unlock the phone.
Sent from my Legend using XDA App
Click to expand...
Click to collapse
I doubt it will mess with your rooting, I used cellunlock.net along with coupon code crackb50 to get my unlock code, cost me $10 (down from $20) but unfortunately, they increased it to $30, so now after 50% off, it's $15.

Activating a MicroSIM on tmobile prepaid

After buying the MicroSIM card and activation kit, I am a little stumped as to how I should activate it. Specifically, with the 100min/5GB $30 plan, which is "web only," only complicating the process further.
I have the activation code, and the SIM card serial #. Only problem is, I don't have an IMEI which is apparently required, but if I plan on using a GSM unlocked device (specifically the N4), what do I provide?
Also, would it be possible for me to call in and activate this plan, despite its web only status?
Since I bought the microSIM card + activation kit and not miniSIM (the standard size), does this mean I have to take extra steps? Or do I act as if the microSIM is just like a miniSIM?
I also need to port my number, do I do this during activation, and if so, is there an option during online activation? Or can I do it later (I prefer not to, I'm going all out for TMO and don't need to test out service)?
Sorry for all the questions, just want everything to do smoothly
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If it is micro just treat it the same. The IMEI is just to verify i think.
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MrObvious said:
If it is micro just treat it the same. The IMEI is just to verify i think.
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Alright, sounds good.
Any thoughts on number porting though? And if I don't have an IMEI what should I tell them?
Thanks
Sent from my DROID2 using xda premium
Wait until you get your phone then get the plan? You could probably give them any IMEI. If your D2 has GSM you could give them that IMEI probably.

[Solved] AT&T Sim Unlock

Hello, I was curious about something when it comes to doing a SIM unlock. I did some research and found that there are different ways to do sim unlocks depending on what type of phone you have (of course). In my case I'm running a GPE edition ROM on a i337. Would I use the i337 way or the GPE way? Or...would I have to flash a factory ROM to do it? Found a ton of troubleshooting for unlocking but never saw anything about using different ROMs. Thanks for your help!
I actually used this method. Read it carefully before attempting. I recommend printing it so you can have it to refer to. The *#0011# code is the one that I used. Remember that when instructed to hit the 'back' key, that doesn't mean on your device. It refers to the 'back' button you will see when you press your phone's menu button.
http://gs4.wonderhowto.com/how-to/c...y-s4-so-you-can-use-another-sim-card-0148110/
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So you had a custom ROM installed when you did it?
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Just ask at&t for the code. That service menu can cause trouble in the long run. Plus theres no known method of returning settings to stock.
Will they give it to me even though I'm still under contract?
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agent929 said:
Will they give it to me even though I'm still under contract?
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Click to collapse
Sometimes they will come times not. Never hurts to ask. And if the first try didn't work give them a call on another day. Sometimes it depends on who you get a hold of.
agent929 said:
Will they give it to me even though I'm still under contract?
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Click to collapse
What previous post said. But they have a policy some of their reps follow. Some are more nicer. They give it when youre 90 days in contract
j510 said:
What previous post said. But they have a policy some of their reps follow. Some are more nicer. They give it when youre 90 days in contract
Click to expand...
Click to collapse
I'm way past 90 days into my contract. You didn't mean 90 days from your contract expiring did you? By the way thanks for your help along with everybody else in this post that has helped me!
90 days into contract. So you should be good to go. Shouldnt be a problem once they see that you meet requirements.
Thanks guys!
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At&T will not allow me to unlock my phone since it is still under service until 2015 >.< It took 4 people to finally get someone who spoke real english and well this is the last straw with att, no longer buying phones through them. Hello nexus.
toxicpaulution said:
At&T will not allow me to unlock my phone since it is still under service until 2015 >.< It took 4 people to finally get someone who spoke real english and well this is the last straw with att, no longer buying phones through them. Hello nexus.
Click to expand...
Click to collapse
I guess you actually don't call them to do it. You can go to https://www.att.com/deviceunlock/client/en_US/ and do it there.
agent929 said:
I guess you actually don't call them to do it. You can go to https://www.att.com/deviceunlock/client/en_US/ and do it there.
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Click to collapse
Says it wont allow it.
Sent from my SGH-I337 using Tapatalk 2
Says right on the site...
Postpaid Smartphone Customers: Account has been active for at least ninety days and is in good standing (i.e., it has no past due amount or unpaid balance owed AT&T.
This doesn't apply to Apple products (not that you have one, but I thought it's good to know)
So I got the unlock codes from AT&T a few moments ago..and I'm a little unsure how to enter them into the phone..i thought you type it in the dialer but that didn't work. I just read that you need to insert a sim from another carrier...lol my intention was to sell an unlocked s4 so I could buy a different one. How do I unlock without a different carriers sim card...I have the unlock code
No suggestions?
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agent929 said:
No suggestions?
Sent from miPhone using XDA Premium HD app
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Don't think you can. Hopefully, i'm wrong because I can't enter the code due to the previous 'free' attempt and can't get back into service menu (CM rom)
agent929 said:
No suggestions?
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You need to pop in another carriers sim card or any older non att based sim card.
Sent from my GT-I9505 using Tapatalk 2
Some back info first... I had most of the high end AT&T androids and the iphone 5 in the past year. I tried numerous times to get unlock codes from customer service. Unlocked phones just have better resell value. Nothing works cause still under contract.
I currently have 3 smartphones with data share. $250/month is killing me. So recently traded my iPhone 5 for a S4. I didn't activate it on my line. I was looking towards the prepaid especially with Straight talk having ATT lte now and the nationwide release of Aio Wireless but T-Mobile $30 plan (100 min unlimited text and unlimited data up to 5gigs) is what I really wanted. This made me want to unlock the S4 since I live in a refarmed area. I can live with Hspa for $30.
I read on numerous forums that ppl may get a better chance of unlocking their device thru ATT international online chat. I tried so many times but they were always busy. Got lucky, finally spoke to a someone online. Gave them my ATT account info and etc. Was thinking I never got them to give me the codes before. This was just another time they would deny me. Another thing this s4 isn't even activated on my account. Gave them the imei, few minutes later I got directions and the unlock code for it. So damn excited but that's not the best part.
There's also an "Aws T-Mobile mod" for our ATT S4 to enable the Aws bands on the att s4. I'm like this is perfect. I can use the refarmed spectrum and the other hspa+ bands on the s4 and pay only $30/month. This is a no Brainer. Unfortunately. Couldn't get the Aws mod to work because you need a PC and I have a mac.
Took one of my old reg tmobile sim, using a sim template, I cut down the sim to a micro sim. Did the unlock procedure and it worked. Went to best buy to buy a tmobile prepaid kit and activated it with the $30 plan (only available to new activations). I'm thinking the 1900mHz refarmed band is reg but my phone showed 4g and was confused but I was getting 4-6mb down. Definitely could live with this. This is where I live. Driving to work, it showed full bars 4g lte. Got excited so I did a speed test. The highest I got was 12mb. I also looked it up just as I got home and one forum confirmed the same thing. Unlocked AT&T S4 works on T-Mobile Lte.
http://forums.androidcentral.com/samsung-galaxy-s4/292079-t-s4-unlocked-lte-t-mobile.html
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---------- Post added at 03:18 PM ---------- Previous post was at 03:13 PM ----------
Febby said:
You need to pop in another carriers sim card or any older non att based sim card.
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You have to shut off your phone, insert tmobile sim, restart, entunlockrr code and voila.
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Tmob network unlock?

I bought a tmob n3 yesterday. Putting my Att Sim in I get a Sim unlock password request. I thought I could just pop in my Att Sim.and go..any ideas? Do I have to call tmob to get the unlock..I bought it at full price
Sent from my GT-I9505G using XDA Premium 4 mobile app
I think I read somewhere that t-mobile will make you keep the phone on their service for at least one billing cycle before they unlock it.
You'd better just call them and ask, the store clerks will give you an answer, or 3 answers, probably all wrong.
Please update the thread when you know for sure.
Sent from my Nexus 10 using xda app-developers app
Its a 40 day wait for unlock, not sure if you could talk some manager into bypassing it. You could try this: http://forum.xda-developers.com/showthread.php?t=2471742
shaungregg said:
Its a 40 day wait for unlock, not sure if you could talk some manager into bypassing it. You could try this: http://forum.xda-developers.com/showthread.php?t=2471742
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That looks to work if you don't need a true unlock where you can use any sim without restricts. I had great results with cellunlocker.net. It's $25 but you never have to worry about it again.
+1 for cellunlocker.
Sent from my SM-N900T using Tapatalk 4

Help from the Comunity to Sim Unlock

SOLVED UNLOCK FOUND
THANK YOU VERY MUCH kmani.k78 & aalyatim AND ECS87, AND THE REST OF THE PEOPLE THAT PUT SO MUCH EFFORT INTO THIS!!!
I have experience doing sim unlocking (I found the sim unlock method for the LG Optimus 3D).
I bought one of this phones to try to unlock it.
What I have found so far:
-The uicc unlock is preformed by Sprint OTA (over the air) by sending a network message to the phone to init the unlocking function.
-This message can be sent by generating a fake message and using a software DFS CDMA to comunicate to the device modem and generate the secuence.
-This was done to the Sprint Galaxy S4 but now Samsung implemented a signed encrypted package for the S5.
-By default, domestic networks (Tmobile and ATT) are locked even though sprint unlocks the uicc
-This can be overriden easily once we unlock the uicc
What I need to continue my search:
-a EFS and NVRAM Backup of a phone that had the uicc unlocked
-a App Log for the uicc unlocking state (a phone that is eligible for unlocking by sprint and activate the application log to monitor the unlocking process)
INSTRUCTIONS for the App Log
Because we only have one chance and I don't want to let it go. Please please if you are eligible for a Sprint unlock contact me and we will set up a live meeting so we can setup your phone before hand (root, increase log buffer sizes, etc) and preform together the unlock process. Also because I have not seen the unlock process I don't know if the device will reboot or what happens and I don't want the logs to be overridden or deleted in the process.
INSTRUCTIONS for the EFS and NVRAM dump
If you already unlocked your phone and have an active sim slot, because you went through the process of calling Sprint and they agreed to unlock your phone.
Download the following tool:
http://forum.xda-developers.com/showthread.php?t=2705524
Select the option Backup partition for LTE device.
Any help would benefit the entire comunity.
Reserved
Reserved
That will be great
Sent from my SM-G900P using XDA Free mobile app
Since people are not that cooperative I will give a $100 reward for someone to send me the nvram and efs backup and a $200 reward for the app log.
When I get out from work let me see
Sent from my SM-G900P using XDA Free mobile app
I tried to get them to unlock my the gs5 and was told I have to have the phone on the account for 90 days making it impossible for anyone to get it unlocked as of now.
Sent from my SM-G900P using XDA Premium 4 mobile app
How can i get the log or just download a app from the play store?
How to get nvram I am ready to help you do inform how to get from mobile the info u need
Sent from my SM-G900P using XDA Free mobile app
i'll be donate for you if sim unlock work swear.
Thank you guys in advance for the help I updated the First post with detailed instructions.
If you are eligible from sprint to unlock your phone PLEASE CONTACT ME.
If you unlocked your phone PLEASE CONTACT ME.
WW3 said:
I tried to get them to unlock my the gs5 and was told I have to have the phone on the account for 90 days making it impossible for anyone to get it unlocked as of now.
Sent from my SM-G900P using XDA Premium 4 mobile app
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Well not exactly old Sprint customers are eligible for unlocking their handset.
josuelopezv said:
Well not exactly old Sprint customers are eligible for unlocking their handset.
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i have 10 lines on my account for past 6 years, was still told no, even bluffed to cancel all my lines, but all i got was we are sorry to see you go but we can't unlock it for 90 days. i guess its all about the rep you get.
My only problem is I don't have root and I don't feel like rooting because of the knox counter until their a solution to that
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verse187 said:
My only problem is I don't have root and I don't feel like rooting because of the knox counter until their a solution to that
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There won't be a solution for the Knox counter. ... there hasn't been one for 7 months for note 3
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A man I'll guess I'll root then
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verse187 said:
A man I'll guess I'll root then
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Actually root is not required for the logs and NVRam but it is highly recommended so we can get all the information possible.
Epix4G said:
There won't be a solution for the Knox counter. ... there hasn't been one for 7 months for note 3
Sent from my SM-G900P using Xparent BlueTapatalk 2
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They've figured it out on the Exynos Note 3.
verse187 said:
My only problem is I don't have root and I don't feel like rooting because of the knox counter until their a solution to that
Sent from my SM-G900P using XDA Free mobile app
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Hi Verse187:
Do you apply for the unlock?
http://www.sprint.com/legal/unlocking_policy.html
galaxy s5 sprint unlocked
josuelopezv said:
Thank you guys in advance for the help I updated the First post with detailed instructions.
If you are eligible from sprint to unlock your phone PLEASE CONTACT ME.
If you unlocked your phone PLEASE CONTACT ME.
Click to expand...
Click to collapse
I got my sprint galaxy s5 unlocked by sprint last week, i am going to travel outside of the country so they were able to unlock it. It took about 3 phone calls for them to accept my request after many denies.
Sprint unlocked my phone too. I'll help as soon as I can
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