Database Users

[Q] How to Unlock the Sprint Galaxy S4

I did some searching but couldn't really make anything out... is it possible to unlock my Sprint Galaxy S4 for AT&T Use?

No, not yet anyways. The only thing possible at the moment is to have the SIM unlocked by Sprint for international SIM card usage while overseas.

It's already unlocked, I took my phone over seas and just popped my sim in there and everything was working fine
Sent from my SPH-L720 using Tapatalk 2

nas02302 said:
It's already unlocked, I took my phone over seas and just popped my sim in there and everything was working fine
Sent from my SPH-L720 using Tapatalk 2
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That's cool to hear. You're the first example I've read about whose S4 just worked out of the box with an international SIM without getting it unlocked first from Sprint. Did you buy the phone brand new from Sprint at a retail location?

optimummind said:
That's cool to hear. You're the first example I've read about whose S4 just worked out of the box with an international SIM without getting it unlocked first from Sprint. Did you buy the phone brand new from Sprint at a retail location?
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no actually you might be right, i went to a samsung event and won it there and im on employee line.

Converting Sprint S4 to ATT

I get my wife a used S4 today that was previously on the Sprint network. We are on ATT and i planned on rooting the phone any ways. What all do i need to change to get rid of the sprint phone number that is on the phone, and what do i need to flash to make it work with the att network?

Don't believe it's possible. ..Sprint is CDMA and dont use SIM cards ATT uses GSM and SIM cards
Sent from my SGH-I747 using xda premium
---------- Post added at 09:56 PM ---------- Previous post was at 09:55 PM ----------
Only other carrier that uses CDMA is VZW
Sent from my SGH-I747 using xda premium

it has a sim card slot on the phone. They said it was unlocked and would work with all carriers. When i put the sim card in, it says Invalid SIM card

Twiztidunreal said:
it has a sim card slot on the phone. They said it was unlocked and would work with all carriers. When i put the sim card in, it says Invalid SIM card
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Because its for international SIM cards. Your Sprint S4 WILL NOT WORK on any US carrier other than Sprint.

MattMJB0188 said:
Because its for international SIM cards. Your Sprint S4 WILL NOT WORK on any US carrier other than Sprint.
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I can confirm this. I work as a Sprint wireless consultant. A sim unlocked phone from Sprint is not compatible with any domestic carriers.
Sent from my SAMSUNG-SGH-I337 using xda premium

Its true.. Sprint is the only greedy company that goes out of their way to block gsm domestically within the USA.
Sent from my SGH-I337 using Tapatalk 2

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worthless sprint is sprint and sprint only...sorry, no ATT for you.

Febby said:
Its true.. Sprint is the only greedy company that goes out of their way to block gsm domestically within the USA.
Sent from my SGH-I337 using Tapatalk 2
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I'm sorry to have to disagree with this but I own a blackberry 9630 world phone from sprint and the sim slot works both with at&t as well as tmo. I understand ad long as contract is fulfilled and any etf's are paid Sprint will unlock sim slot and it will work with any carrier, gsm and CDMA alike. Check Sprint forums and speak with cs agents... :good:

onebenadams said:
I'm sorry to have to disagree with this but I own a blackberry 9630 world phone from sprint and the sim slot works both with at&t as well as tmo. I understand ad long as contract is fulfilled and any etf's are paid Sprint will unlock sim slot and it will work with any carrier, gsm and CDMA alike. Check Sprint forums and speak with cs agents... :good:
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Try using an Att/T-Mobile sim on an s4. It will be blocked even if the phone has been unlocked. Previous phones from sprint did not block USA native gsm but as of lately they do.
My good ol htc touch pro was a lucky one to work on USA gsm as of course your old black Berry.
You get it now? Its an accepted fact sprint has been going out of their way to block USA native gsm access on their latest phones. Perhaps some new ones aren't but the s4 is unless a work around is done but it doesn't work for everyone.
Sent from my SGH-I337 using Tapatalk 2

HTC One
This isn't entirely true. I unlocked my Sprint HTC One to run on aio wireless which is on the ATT network. I haven't unlocked my Galaxy S4 but I intend on giving it a shot.

Call sprint and ask for a subsidy unlock code.
You'll need to provide the IMEI
*#06# on the keypad. After they give you the code, try a gsm sim. Hope this helps.
Sent from my SAMSUNG-SGH-I337 using Tapatalk

Or buy an unlock code from Amazon or ebay if they wont give it to you ofcourse

CuhThooLoo said:
This isn't entirely true. I unlocked my Sprint HTC One to run on aio wireless which is on the ATT network. I haven't unlocked my Galaxy S4 but I intend on giving it a shot.
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thinking of doing the same with my s4 on sprint and going to aio. Been with sprint over a decade and finally over it. In houston and lte sucks.

wow that sucks, because even Verizon who is the greediest of them all will let you use their phone on both AT&T and T-Mobile. I have the AT&T Galaxy S4 and I can use my phone on T Mobile as well.

sleekgreek said:
thinking of doing the same with my s4 on sprint and going to aio. Been with sprint over a decade and finally over it. In houston and lte sucks.
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I tried and tried to unlock my Sprint S4 for domestic SIM but I have failed time and time again. I got it unlocked for International but Sprint has somehow managed to block the S4 from working on a Domestic carrier. I'll let you know if I have any luck.

CuhThooLoo said:
I tried and tried to unlock my Sprint S4 for domestic SIM but I have failed time and time again. I got it unlocked for International but Sprint has somehow managed to block the S4 from working on a Domestic carrier. I'll let you know if I have any luck.
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I think I've read about people unlocking for use on metro pcs which is tmobile. Thanks for heads up though, probably gonna have to buy one when I switch.

I unlocked a Sprint s4 and I am able to make calls with a AT&T micro sim in but cannot get data and texts working. I had to downgrade the baseband to get into hidden menu, but I stopped there. In the hidden menu you have to make some changes but I was scared that if I got it to work on at&t I wouldnt be able to get it back working on Sprint. Everyone does say that Sprint doesnt allow anyone to use other domestic carriers.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app

sprint lost
cyrusalmighty said:
I unlocked a Sprint s4 and I am able to make calls with a AT&T micro sim in but cannot get data and texts working. I had to downgrade the baseband to get into hidden menu, but I stopped there. In the hidden menu you have to make some changes but I was scared that if I got it to work on at&t I wouldnt be able to get it back working on Sprint. Everyone does say that Sprint doesnt allow anyone to use other domestic carriers.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
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here is a video I made for on sprint 4g to att h+ back to sprint 4g with no problems no sound in the video tho and no need for root inless you want data then you need to edit apns no you should get on E or 3g maybe with this without apn.
tNoobYsYL8o <--- end of youtube link just made an acc so can't post the whole link

how you do it
eheilner said:
here is a video I made for on sprint 4g to att h+ back to sprint 4g with no problems no sound in the video tho and no need for root inless you want data then you need to edit apns no you should get on E or 3g maybe with this without apn.
tNoobYsYL8o <--- end of youtube link just made an acc so can't post the whole link
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can you provide how you do it to unlock the s4 sprint use in att
thanks in advance

For Those Running a Google Play Edition I9505G on AT&T

Hey everyone,
Did anyone register the IMEI for their I9505G with AT&T? If so, did you have any issues with your data plan changing to non-LTE? My GPE S4 will be here tomorrow and I'm worried that when I activate it, AT&T may not see it as an LTE-compatible device and thus limit my data plan to HSPA+ or something. I know when you're dealing with unlocked devices on AT&T, they will change your date plan speeds based on what their records show the device is capable of. So... did anyone have any issue with this or am I worrying over nothing?
Sent from my Xoom using Tapatalk 4

No. I never had any problems. I just asked for a new sim. Nothing more. I was coming from a skyrocket, took the larger sim. No questions were asked. They just got grabbed a new Sim card. Put it in and activated it. LTE workes great for me when I am in it.
Sent from my GT-I9505G using Tapatalk 4

No major problems. It was pretty straightforward. Only problem I had was that the S4 uses a micro SIM card and my old phone used a normal sized one so it didn't fit. One trip into an AT&T store and I was all set.
If you don't want to get a new micro SIM card, I guess there are some ways to trim down a normal card so that it works. Seemed easier to just go down to the store and get a new one and handle the activation in one stop.

occupational_hazard said:
No. I never had any problems. I just asked for a new sim. Nothing more. I was coming from a skyrocket, took the larger sim. No questions were asked. They just got grabbed a new Sim card. Put it in and activated it. LTE workes great for me when I am in it.
Sent from my GT-I9505G using Tapatalk 4
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Ah. So when you got the new SIM card, did you provide your new IMEI number? Or does AT&T still think you have a Skyrocket?
I have an AT&T GS4 right now, so I currently have an LTE data plan. I know I can just swap the SIM and LTE will work just fine. But say I called AT&T and said "Hey, I don't have that phone anymore and here is the IMEI of my new phone...", that's my question.
Does AT&T see the GPE GS4s as LTE capable in their database? I prefer to keep my IMEIs up to date with my carriers, but I won't update it if it means there's a chance I could lose an LTE data plan due to incorrect info on the I9505G in AT&T's database.
That's why I'm asking if anyone actually has an I9505G IMEI number registered with AT&T and if they had any LTE issues after doing so.
Sent from my Xoom using Tapatalk 4

irishpadres said:
No major problems. It was pretty straightforward. Only problem I had was that the S4 uses a micro SIM card and my old phone used a normal sized one so it didn't fit. One trip into an AT&T store and I was all set.
If you don't want to get a new micro SIM card, I guess there are some ways to trim down a normal card so that it works. Seemed easier to just go down to the store and get a new one and handle the activation in one stop.
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When you got the SIM, did you give them your I9505G IMEI number or do they think you still have your old phone?
Sent from my Xoom using Tapatalk 4

oldblue910 said:
When you got the SIM, did you give them your I9505G IMEI number or do they think you still have your old phone?
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I gave them the new IMEI number.

After your two year contract is up, and you unlock your phone, do they turn off LTE? No. Plenty of people bring LTE capable phones to att network. If there is a problem. Make a phone call. They want your money more than they want a lost customer.
Sent from my GT-I9505G using Tapatalk 4

occupational_hazard said:
After your two year contract is up, and you unlock your phone, do they turn off LTE? No. Plenty of people bring LTE capable phones to att network. If there is a problem. Make a phone call. They want your money more than they want a lost customer.
Sent from my GT-I9505G using Tapatalk 4
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I understand that, but when it comes to unlocked devices that AT&T doesn't sell or support, like Nexus devices and, in this case, and I9505G, they sometimes have incorrect information about the phone's capabilities in their IMEI database. That it can lead to problems. But IrishPadres said he gave them the new IMEI and he still had LTE so that answers my entire question. That means that, even though they don't sell the I9505G, they still see it as an LTE capable device. :thumbup:
Sent from my Nexus 10 using Tapatalk 4

I just popped my SIM in and was fine. Never called ATT. I was already provisioned for LTE etc. You will only need to worry if you currently do not have a ATT account provisioned for LTE and a SIM. If you need to get a new account and SIM you may need to let them know the IMEI.

perfect
I swapped my sim out of my crappy iPhone 5 with a sim card adapter and no issues ever.

[Q] Isis 3g 4g issue - SOLVED - at least in my case

I'm having issues with Isis. I have an enhanced SIM, I've installed rootcloak with Isis added. But I keep getting the message "Your phone can't connect to the 3G or 4G mobile network right now. Please try again later." I've tested my mobile connection and it works... Any ideas? I've searched this issue and can't seem to find a solution. I'm currently running the leaked 4.4.2 (BeansTown106) version with Isis 2.01.00-build.15.30

Same issue here
Sent from my SM-N900V using Tapatalk

Isis tells me I don't have an enhanced SIM, even though I was running it fine on 4.3 and I do. I think it's just not compatible yet and they are really slow. I emailed their support a few days ago asking when they would be compatible with KK and got no response whatsoever yet.
Sent from my SM-N900V using Tapatalk

I dont have a enhanced SIM (nor do I know what it does/is) but I have installed the leaked 4.4.2 rom and the nc2 firmware. I lost data connection as well. I have the 3g/4g icon pop up but the arrows are not there and it will not connect to the internet. I have tried using mje. m19, nc4, nc2 modems to no avail. I have also tried using Hyperdrive ROM and the 4g icon wont even show up. It was working fine on my stock rom yesterday before I upgraded to KK.
Anybody with some insight on this topic, help would be greatly appreciated.
Thanks.
PS I searched through several forums and have not found any solid answers.

adoublearonn said:
Isis tells me I don't have an enhanced SIM, even though I was running it fine on 4.3 and I do. I think it's just not compatible yet and they are really slow. I emailed their support a few days ago asking when they would be compatible with KK and got no response whatsoever yet.
Sent from my SM-N900V using Tapatalk
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To the best of my limited knowledge, the enhanced SIM is really just the SIM that comes with the new phones. I had an old SIM that I transferred to my N3 and it didn't have the secure element that is required to run Isis. It's interesting that it works on 4.3 but not 4.4 after my discussion with the Verizon rep the other day (when he almost busted me for being rooted). He asked me what version I was on and I told him 4.4.2 and he seemed to think it should work.

Oatswesow said:
To the best of my limited knowledge, the enhanced SIM is really just the SIM that comes with the new phones. I had an old SIM that I transferred to my N3 and it didn't have the secure element that is required to run Isis. It's interesting that it works on 4.3 but not 4.4 after my discussion with the Verizon rep the other day (when he almost busted me for being rooted). He asked me what version I was on and I told him 4.4.2 and he seemed to think it should work.
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Click to collapse
Thanks for the explanation.

Solved - at least in my case
The issue in my case seemed to be the theme I had installed. I had to restore a nandroid that I had made prior to installing the All Backs Black theme. After the restore I was able to open and complete the Isis set-up...

No calls on Verizon

I have flashed 2 different images downloaded from Google and have even tried to install CleanRom. My issue is I get LTE data and can even receive messages, but absolutely no calls in or out. *#*#4636#*#* shows emergency calls only. This same sim works on my old phone still. My APN is exactly the same as my wife's Note 3 so that isn't the problem either. Can anybody help me figure out what is going on and how to fix it. Thanks

CDMA/LTE checked in the cellular network settings under preferred mobile type?
Sent from my Nexus 5 using Tapatalk

archaleus said:
I have flashed 2 different images downloaded from Google and have even tried to install CleanRom. My issue is I get LTE data and can even receive messages, but absolutely no calls in or out. *#*#4636#*#* shows emergency calls only. This same sim works on my old phone still. My APN is exactly the same as my wife's Note 3 so that isn't the problem either. Can anybody help me figure out what is going on and how to fix it. Thanks
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i thought the new nexus phones required a different sim? nano sim?
my buddy got the 5x on vzw he said he had to go to the store to get a certain type of sim card for it to work
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elliwigy said:
i thought the new nexus phones required a different sim? nano sim?
my buddy got the 5x on vzw he said he had to go to the store to get a certain type of sim card for it to work
Sent from my SM-G925V using XDA Free mobile app
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Click to collapse
You can cut your sim down to nano... They even sell sim cutters that punch out the different sizes.
Sent from my Nexus 5 using Tapatalk

I put my verizon nano sim card from my s6 and it just worked for me. Stock unrooted.

Yeah, I have CDMA/LTE checked and have a nano sim in.

With no solution in sight, i contacted Huawei customer service and am supposed to be getting an RMA label today. They said it will ship back for repairs and be gone 10-14 days.

archaleus said:
With no solution in sight, i contacted Huawei customer service and am supposed to be getting an RMA label today. They said it will ship back for repairs and be gone 10-14 days.
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Archaleus,
Did you get your phone back yet? Did it work out of the box?

Andrew_Aj1 said:
Archaleus,
Did you get your phone back yet? Did it work out of the box?
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Are you curious if Verizon works on the 6P? Because I am on Verizon and everything works as it should. Just pop in an active nano sim.