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[Q] Sim Card Compatablity

So heres a question. When i talked to the sales rep they said i would be getting a new sim card. So if thats the case is the new card compatable with my current Tilt 2 phone (HTC Rhodium) since the Inspire is not a world phone?

darkbluexplorer said:
So heres a question. When i talked to the sales rep they said i would be getting a new sim card. So if thats the case is the new card compatable with my current Tilt 2 phone (HTC Rhodium) since the Inspire is not a world phone?
Click to expand...
Click to collapse
A sim is a sim. As long as the phone is compatible with the network and not locked(or on its locked carrier) it should work fine. They reused my Captivate sim.
Sent from my Desire HD using XDA App

When I got my phone they gave me sim it looks different form the 3g sim. the pattern on the back is changed so you can get the 4g frequency

Yeah, they gave me a new sim, they said it was for the 4G

N!ghtgold said:
When I got my phone they gave me sim it looks different form the 3g sim. the pattern on the back is changed so you can get the 4g frequency
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Click to collapse
A new SIM is not required for HSPA+. Any change you see is purely coincidental.

Twenty4 said:
A new SIM is not required for HSPA+. Any change you see is purely coincidental.
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Click to collapse
This is absolutely correct you don't need new sims
Sent from my Desire HD using Tapatalk

heck, they put the 'cingular' sim in the inspire from my krazr and it works fine.

The sim card i am using is from my old tilt 2. They just moved it from my old phone into my new Inspire working great.

Sounds like the sales rep you dealt with was a confused. New sim cards have been released for LTE, but they are not supposed to be activating them until the old sim cards are depleted.

AT&T has released a new batch of SIM cards that will support HSPA+ and future LTE devices. I have attached a image of what the new SIM looks like. You will not notice any difference between the new SIM's until you begin using LTE devices in 2012.

darkbluexplorer said:
since the Inspire is not a world phone?
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Click to collapse
The Inspire is not a world phone? It won't roam overseas??

3g on 4g network

Can anyone tell me if you have a 3g phone will it work on 4g network at 3g speeds...i day this cause att is installing 4g in my area and all we have now is edge....
Sent from my SAMSUNG-SGH-I897 using XDA App

The 4g AT&T networks are usually rebranded 3g. So yes, 3g should work fine.

Hey thanks I've got a friend thats installing the circuits for 4g ....but didn't know if you could connect 3g through the 4g
Sent from my SAMSUNG-SGH-I897 using XDA App

my dad is on vacation and wasn't getting data signal.
he stopped in an att store and they thought his sim had failed.
they installed a 4g sim card in his captivate

bames said:
my dad is on vacation and wasn't getting data signal.
he stopped in an att store and they thought his sim had failed.
they installed a 4g sim card in his captivate
Click to expand...
Click to collapse
Oh cool my dad works for nintendo and he says their is a secret level in ocarina of time.

comdei said:
Oh cool my dad works for nintendo and he says their is a secret level in ocarina of time.
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Click to collapse
DUDE! My dad knows Link, tell me where that secret level is!

a sim card is a sim card. doesnt matter what it says on it.....

Pirateghost said:
a sim card is a sim card. doesnt matter what it says on it.....
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Damn, you had to burst his bubble, didn't you.
I got my 6g sim card from the Bieber. I'm getting mad speeds.

Yes, 3G will be around for awhile, just as EDGE is still around.

I got my 6g sim card from the Bieber. I'm getting mad speeds.
This has me currently crying from laughter
Sent from my SAMSUNG-SGH-I897 using XDA Premium App

Not true. SIM profiles will change and when you upgrade to a new data network the older SIM may not have the full profile and can't get it via SIM OTA.
Pirateghost said:
a sim card is a sim card. doesnt matter what it says on it.....
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Click to collapse
Sent from my SAMSUNG-SGH-I897 using XDA App

ianwood said:
Not true. SIM profiles will change and when you upgrade to a new data network the older SIM may not have the full profile and can't get it via SIM OTA.
Sent from my SAMSUNG-SGH-I897 using XDA App
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LOL. tell that to my CINGULAR SIM card then.

Pirateghost said:
LOL. tell that to my CINGULAR SIM card then.
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Click to collapse
I think AT&T network kept the cingular Access Point.
Currently the APN for AT&T 3G is wap.cingular

amtrakcn said:
I think AT&T network kept the cingular Access Point.
Currently the APN for AT&T 3G is wap.cingular
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Click to collapse
you guys do realize that ATT is marketing their 4G, when its actually only HSPA+?
also, you seem to think that the SIM card is going to need to be changed for '4G' speeds? why? the only thing that needs to change for '4G' is the hardware has to support it.

SIMS cards do need to be changed from time to time because of types of services or network upgrades.
Older SIM cards may still work but that doesnt mean you will always get full network/sevice potential.
There is good reading outside of XDA about this if you search a little, and ignore the junk search results
Sent from my SAMSUNG-SGH-I897 using XDA Premium App

Pirateghost said:
LOL. tell that to my CINGULAR SIM card then.
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Click to collapse
What's this then:
http://www.bgr.com/2010/10/21/att-starts-switching-to-lte-compatible-sim-cards/
Cingular changed their UICC profile (SIM) in 2005 when they introduced ISIM and USIM profiles to support 3G. Now to support LTE, they've introduced... wait for it... a new SIM! OMG!!!!
BTW, LTE unlike HSPA+ uses a totally different core called EPC and thus has a different APN and several other new profile settings.
BTW, BTW, APN is typically a device driven setting and NOT a UICC setting. There's a difference.

groves226 said:
SIMS cards do need to be changed from time to time because of types of services or network upgrades.
Older SIM cards may still work but that doesnt mean you will always get full network/sevice potential.
There is good reading outside of XDA about this if you search a little, and ignore the junk search results
Sent from my SAMSUNG-SGH-I897 using XDA Premium App
Click to expand...
Click to collapse
ianwood said:
What's this then:
http://www.bgr.com/2010/10/21/att-starts-switching-to-lte-compatible-sim-cards/
Cingular changed their UICC profile (SIM) in 2005 when they introduced ISIM and USIM profiles to support 3G. Now to support LTE, they've introduced... wait for it... a new SIM! OMG!!!!
BTW, LTE unlike HSPA+ uses a totally different core called EPC and thus has a different APN and several other new profile settings.
BTW, BTW, APN is typically a device driven setting and NOT a UICC setting. There's a difference.
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HAHAHAH!!!!!!!!!!!
you think these devices are capable of LTE?!
seriously guys, ATT's 4G network is nothing more than 3.5G.....its not a real 4G network. All of the info I have found coming from ATT techs has been that there is no real difference between 4G and 3G SIM cards....

Pirateghost said:
you guys do realize that ATT is marketing their 4G, when its actually only HSPA+?
also, you seem to think that the SIM card is going to need to be changed for '4G' speeds? why? the only thing that needs to change for '4G' is the hardware has to support it.
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Click to collapse
I know what HSPA+ is...
Anyway, AT&T shipped me a new SIM when I received my Atrix 4G. Not really sure if it's necessary but AT&T did that.
BTW, as far as I know a GPRS/EDGE SIM cannot do WCDMA on a WCDMA network.

amtrakcn said:
I know what HSPA+ is...
Anyway, AT&T shipped me a new SIM when I received my Atrix 4G. Not really sure if it's necessary but AT&T did that.
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i have a new SIM with each of my Atrixes, and when I called in to get my account provisioned for my Atrix, i told them i had an old Cingular sim card. they said 'if you arent having any problems, then there isnt any need to change it'
so here i sit with 2 ACTIVE 4G sim cards and 2 ACTIVE '3G' sim cards and not a damn one of them is any different on any phone for any speeds....
my phone line up on ATT currently consists of:
2 captivates
2 atrixes
1 aria
PS. im not an idiot

Pirateghost said:
i have a new SIM with each of my Atrixes, and when I called in to get my account provisioned for my Atrix, i told them i had an old Cingular sim card. they said 'if you arent having any problems, then there isnt any need to change it'
so here i sit with 2 ACTIVE 4G sim cards and 2 ACTIVE '3G' sim cards and not a damn one of them is any different on any phone for any speeds....
my phone line up on ATT currently consists of:
2 captivates
2 atrixes
1 aria
PS. im not an idiot
Click to expand...
Click to collapse
Since you have practiced, you should be correct. I didn't get a chance to test my original SIM in Atrix.
However I still recall my China Mobile SIM didn't get 3G while roaming in US... Maybe just my problem.

MT4GS on AT&T

What do folks know about the MT4GS on the AT&T network? I used the Sensation exploit to sim unlock the phone. Got the code, entered it and it says network unlock successful but I can't get it to connect to the AT&T network once I insert the AT&T sim. I attempted to add the AT&T apn settings to the MT4GS but they won't save. I have a network unlocked MT4GS and an AT&T sim card.
Can anyone offer any advice?

Is your sim card activated? And have the proper data plan?
You need to go to the att store and have it activated and then have the towers updated.
Thats what my brother in law just told me who works at att. He said you can call them as well.
I actually have an att sim he gave me thats active, but needs to be paid, so i couldnt test it. I used it to unlock the phone.
sent from my RuBiX infused MT4G Slide using xda premium

_atlien_ said:
What do folks know about the MT4GS on the AT&T network? I used the Sensation exploit to sim unlock the phone. Got the code, entered it and it says network unlock successful but I can't get it to connect to the AT&T network once I insert the AT&T sim. I attempted to add the AT&T apn settings to the MT4GS but they won't save. I have a network unlocked MT4GS and an AT&T sim card.
Can anyone offer any advice?
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When i had plenty of tmobile androids on att i never had to tell them, and i dont understand why they would update towers. Make sure you hit menu and select save in apn settings
Sent from my Sensation_ReMiX using Tapatalk

I have an idea. Go to settings, wireless and network, mobile network settings, then network operators, click search and select att.
sent from my RuBiX infused MT4G Slide using xda premium

Love you all are weighing in so quickly to help me think about this problem. XDA really is the best. I've tried all the things suggested and still no luck. I just had a thought that I'd like to run by you all. The phone is 4g. Do I need a 4g sim card from AT&T? The sim card is active. It's moving from an unlocked T-Mobile Vibrant to this unlocked T-Mobile MT4GS. So I know that the sim card works and can be used in an off-network device. But I don't know much about 3g/4g and sim cards. The current plan is 3g data on AT&T.
The problem is that the MT4GS behaves as if the sim isn't even there. I can put in a Simple Mobile sim and it fires right up. I can put the AT&T sim back into the Vibrant and it works right away. So how do plans work with sim cards?
If it is a 3g plan will the MT4GS not even see the sim card?
You guys rock.

It could be. make sure the sim is in right way and it isnt badly damaged. Since simple mobile works it leads me to think the sim is having an issue of some sort.
I would try getting a new sim from att with a 4g plan, see if that works. If im not mistaken, theyre free, if you get a paid plan.
sent from my RuBiX infused MT4G Slide using xda premium

_atlien_ said:
Love you all are weighing in so quickly to help me think about this problem. XDA really is the best. I've tried all the things suggested and still no luck. I just had a thought that I'd like to run by you all. The phone is 4g. Do I need a 4g sim card from AT&T? The sim card is active. It's moving from an unlocked T-Mobile Vibrant to this unlocked T-Mobile MT4GS. So I know that the sim card works and can be used in an off-network device. But I don't know much about 3g/4g and sim cards. The current plan is 3g data on AT&T.
The problem is that the MT4GS behaves as if the sim isn't even there. I can put in a Simple Mobile sim and it fires right up. I can put the AT&T sim back into the Vibrant and it works right away. So how do plans work with sim cards?
If it is a 3g plan will the MT4GS not even see the sim card?
You guys rock.
Click to expand...
Click to collapse
You will not get 4g on the slide, so you don't need a 4g card. Differing spectrums. Vibrant gets 3g on ATT but its the only one.
Sent from my Sensation_ReMiX using Tapatalk

sgtmedeiros said:
You will not get 4g on the slide, so you don't need a 4g card. Differing spectrums. Vibrant gets 3g on ATT but its the only one.
Sent from my Sensation_ReMiX using Tapatalk
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Click to collapse
Doesnt att and t mobile use hspa+ or ++? I was under the impression tmobile leases the same nodes att uses
sent from my RuBiX infused MT4G Slide using xda premium

After you enter the new AT&T APN settings make sure you hit the menu key to actually save the APN settings. Just hitting the back button well NOT save the settings at all. I'm using the MT4GS with my AT&T account and everything works great. Although you well NOT get 4g or even 3g, you well get 2g.

Droidmoder said:
Doesnt att and t mobile use hspa+ or ++? I was under the impression tmobile leases the same nodes att uses
sent from my RuBiX infused MT4G Slide using xda premium
Click to expand...
Click to collapse
They use different frequencies
Sent from my Sensation_ReMiX using Tapatalk

Just wanted to confirm it's working here too. AT&T sim (it's a 4G sim, from my SGS2) in a sim-unlocked myTouch 4G Slide running Bulletproof 1.something. APN had to be entered manually, but I didn't have to manually tell it to use AT&T.

The issue was Cyanogenmod. I don't know why or how but once I flashed Bulletproof 1.1 it took the AT&T sim fine. I reflashed CM in order to verify and it wouldn't take the sim again. I don't know. After flashing Bulletproof 1.1, I used the Tweakker app (an app I wish could be included in every rom) to get my AT&T APN settings and everything worked from there. Thanks everyone for the troubleshooting help. I don't know why it seems to have issues with our CM rom and the AT&T sim card.
The phone is, as we all know, limited to the edge network while on AT&T. Thanks peeps.

Unlock sim Att HOX

I'm new so stick with me, I want to unlock
My One X to work on straight talk but here's the problem, bought on att but I no longer have service and my att account is in bad standing. They canceled my account for me. So does that mean that even if I unlock the phone it won't work or will it? I want to know before I pay for the micro sim.
Sent from my HTC One X using xda app-developers app

Its been reported by several folks on here that the phone does not need to be SIM unlocked to work on Straight Talk, as long as you pick the AT&T SIM when you sign up.

ChummyDays said:
Straight Talk uses the same towers as At&T, so the At&T SIM will definately work.
Click to expand...
Click to collapse
I second that. Just bought the att one x about to weeks ago, inserted my att straighttalk sim, changed my apn and voila!! my phone was working great, mms, internet and all. No need to sim unlock it.

Thanks guys!
Sent from my HTC One X using xda app-developers app

For Those looking to use the N5 On AT&T...

Just wanted to give you a heads up on my experience today based on the N5 and AT&T. I walked in and told them what phone i was waiting for and they pretty much set me up in 5 mins with a sim and a plan. They said when i get the phone i should be able to put the sim in and it will activate. He did say that i may have to come in to have the APN fixed if im not seeing the correct speeds. It was a lot easier then i expected, but if your interested in using the N5 with at&t just go in and they can have everything set up for you for the arrival of your N5. As of right now, I'm on their mobile share plan, But i can easily switch to prepaid if i want. I don't don't trust prepaid when it comes to speeds and coverage.

idk about prepaid but hopefully i will just take mine out of my One and throw it in the N5

Just a heads up, you will not have to go in to AT&T to have them make APN changes. You can find all of the different APN settings for AT&T here on XDA on many different threads. That being said, I have the HTC One Google Edition and did not have to change the APN settings at all when I stuck in my sim. I had LTE immediately.
If you do need to change the APN settings they are really easy to do in the settings of the phone, but hopefully the phone will read your sim and know automatically which APN to use.

bmolloy said:
Just a heads up, you will not have to go in to AT&T to have them make APN changes. You can find all of the different APN settings for AT&T here on XDA on many different threads. That being said, I have the HTC One Google Edition and did not have to change the APN settings at all when I stuck in my sim. I had LTE immediately.
If you do need to change the APN settings they are really easy to do in the settings of the phone, but hopefully the phone will read your sim and know automatically which APN to use.
Click to expand...
Click to collapse
Where can I find these apn settings? How would I know if I need to apply these settings?
Sent from my iPad using Tapatalk HD

Here is a post that has them: http://forum.xda-developers.com/showthread.php?p=26821716
To get there you go to Settings>More>Mobile networks>Access Point Names > the either select the AT&T PTA from the list or hit the plus button to add the APN settings in this post.
I will take a screen shot in a minute and post it, I have to switch my AT&T Sim card back into my phone to do it (I am using a TMobile sim for a while to see the differences).

Here is a screen shot of the APN selection screen and then the settings held within the PTA APN (which is the LTE APN for AT&T). Just a note this is 4.3 but I am sure it will be very similar on 4.4. Good luck. Mine won't be here until the 7th, after that I will know for sure if it has the pre-programmed APN's.
Sent from my HTC One using XDA Premium 4 mobile app

Try again here.
View attachment 2367253
ATTACH]2367255[/ATTACH]
Sent from my HTC One using XDA Premium 4 mobile app

This phone will not be coming to at&t with a contract correct? Or will it be coming later on, because I know T-mobile said is going to have it in the "coming weeks."

Wow. This sucks doing this from the mobile app! Last try.
Sent from my HTC One using XDA Premium 4 mobile app

Marco Munoz said:
This phone will not be coming to at&t with a contract correct? Or will it be coming later on, because I know T-mobile said is going to have it in the "coming weeks."
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Click to collapse
I would not expect to see this on AT&T at all. The nexus 4 never made it there, but it was at T-Mobile. That does not mean that it will not work on AT&T though. I have been using nexus phones on AT&T's network since the Nexus One without any problem. You do have to make sure you have an LTE enabled plan to get LTE however. You should be able to do that online.

I too have an HTC One on AT&T. I converted it to a GPe though and receive OTAs. That said, I never had to change APNs either with that device. My N5 should be here before the 7th and I can tell everyone if it's a simple sim swap or changing of APNs
sent from my Nexus 7✌

Yeah, I have the mobile share plan w/ 4GB and unlimited talk/txt. So LTE should be enabled.

littleguevara said:
I too have an HTC One on AT&T. I converted it to a GPe though and receive OTAs. That said, I never had to change APNs either with that device. My N5 should be here before the 7th and I can tell everyone if it's a simple sim swap or changing of APNs
sent from my Nexus 7✌
Click to expand...
Click to collapse
Awesome, let us know when you get a chance. I should have mine by the 9th.
Sent from my iPad using Tapatalk HD

I'm on AT&T, going to switch the sim from my Note 3. Not expecting any issues. I'm gonna have it on Monday :victory:

918273645ams said:
I'm on AT&T, going to switch the sim from my Note 3. Not expecting any issues. I'm gonna have it on Monday :victory:
Click to expand...
Click to collapse
Me to same boat here in Iowa
Sent from my SAMSUNG-SM-N900A using Tapatalk

Sim swap worked fine coming from HTC One.
Service is much better up the street but clearly it works, no APN changes.
Sent from my Nexus 5 using Tapatalk

bmolloy said:
Wow. This sucks doing this from the mobile app! Last try.
Sent from my HTC One using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Thanks for posting the screencaps. Does the APN have to be this ATT PTA? Because I see ATT Phone is a choice and that is the APN I use on my HTC One with Google Play Edition rom flashed, and I have an ATT LTE sim which works fine, I get normal LTE speeds.

kayone73 said:
Thanks for posting the screencaps. Does the APN have to be this ATT PTA? Because I see ATT Phone is a choice and that is the APN I use on my HTC One with Google Play Edition rom flashed, and I have an ATT LTE sim which works fine, I get normal LTE speeds.
Click to expand...
Click to collapse
I think both work for LTE now. I just checked and seem to come up with the same results with LTE speeds. Something else you might want to check is if MMS works on both APN's. Sometimes this is another area that gets messed up when switching APN's.

I didn't have any problems switching my sim from my S3. Though AT&T still seems to think I have an HTC One X+.

spotdog14 said:
I didn't have any problems switching my sim from my S3. Though AT&T still seems to think I have an HTC One X+.
Click to expand...
Click to collapse
That's because AT&T only has your One X+ IMEI on file with your account
Sent from my Nexus 7 using Tapatalk