[Q] Are LTE Sim card interchangeable between phones? - AT&T Samsung Galaxy S II Skyrocket SGH-I727

Hello,
Anybody knows if I can use my SIM card from Skyrocket in another LTE phone from ATT? Like can I put into Nitro HD and have LTE speeds? During activation ATT customer service asked me for IMEI number of my Skyrocket phone so I assume it's bound somehow to phone device?
Thanks,
G

artisticcheese said:
Hello,
Anybody knows if I can use my SIM card from Skyrocket in another LTE phone from ATT? Like can I put into Nitro HD and have LTE speeds? During activation ATT customer service asked me for IMEI number of my Skyrocket phone so I assume it's bound somehow to phone device?
Thanks,
G
Click to expand...
Click to collapse
Yes you can. I swapped between my vivid and skyrocket every day when I had it.
Sent from my HTC PH39100

And you still got LTE connection on both of them?

artisticcheese said:
And you still got LTE connection on both of them?
Click to expand...
Click to collapse
Of course. It doesn't tie lte to imei
Sent from my HTC PH39100

i put my skyrocket sim in the older htc inspire and it fired up fine. was only getting 3g on that though.

R4INS said:
i put my skyrocket sim in the older htc inspire and it fired up fine. was only getting 3g on that though.
Click to expand...
Click to collapse
Yea, but that's because the inspire isn't LTE, right? It's only hspa+, which is 3.5G. Am I wrong?
Sent from my iPad 2 3G using Tapatalk

Related

In a 4G area, but stuck on 2G. Phone is useless. Any ideas?

I've already rebooted, removed battery/sim, tried to switch network modes, etc. I can't get it to connect to 4g and I'm in a "4g very good" area. I contacted tmobile chat and they are not sure what is happening and suggest I swap for a different phone. Really? Is this a common problem?
Maybe you can check out one of the many threads concerning data issues instead of making a new one.
Sent from my HTC Sensation 4G using XDA Premium App
You probably got the wrong sensation. The one without the 1700 UMTS band
zahashingo123 said:
You probably got the wrong sensation. The one without the 1700 UMTS band
Click to expand...
Click to collapse
Where do I find this information?
Assuming you purchased the Sensation from T-Mobile it shoudl work as long as they placed a 4G capable SIM in your phone. Without it you won't be able to receive 4G service.
Is there a way to tell if I received a 4G capable sim? I ordered online, so I just got it in the mail today.
I went in today and Tmobile swapped out my sim card for a new one - I get the same issue to. And I was advsd they are not 4g cards - just updated cards
j3.cole said:
I went in today and Tmobile swapped out my sim card for a new one - I get the same issue to. And I was advsd they are not 4g cards - just updated cards
Click to expand...
Click to collapse
Did the new sim fix the problem?
http://forum.xda-developers.com/showthread.php?t=1128335
My issue with 4g in Texas. Seems like many others are having data outages as well and not just with the S4G.
The guy on chat said there are currently no 4G outages in my area.
brian85 said:
The guy on chat said there are currently no 4G outages in my area.
Click to expand...
Click to collapse
Chat dont know sh!t. I went through the same song and dance. Call up customer care or 611 on your phone and see if you get an automated response regarding data outages.
j3.cole said:
I went in today and Tmobile swapped out my sim card for a new one - I get the same issue to. And I was advsd they are not 4g cards - just updated cards
Click to expand...
Click to collapse
Where they able to replicate your issue on any of the handsets at the TMobile store? If its a coverage issue all of the phones at the store should experience the same problem. Unless it's something specifically wrong with your phone.
You tried switching the network to CDMA only? That should not let your phone connect to 2g
Sent from my HTC Sensation 4G using XDA App
Well guys, I went down to a t-mobile store and guess what?
4g isn't up yet in my area. They are currently working on it.
So that's kinda messed up...I mean, the coverage chart shows 4g up and running in my area already. I drove to the city next to mine (10 miles), and sure enough, 4G pops up.
the coverage map in green is not for 3G or 4G. its for the 2G network. try locking it on WCDMA ONLY if you don't get a signal you are outside of the 4G coverage area. I just use WiFi. what city is this?
I know the coverage map in green is voice, the purple/pink map is for 4g. That map shows my area covered under "4g very good."
Correct me if I'm wrong but doesn't it go to 3G if you don't have 4G? And if you don't have 3G it goes to 2G(EDGE)?
nitrogen618 said:
Correct me if I'm wrong but doesn't it go to 3G if you don't have 4G? And if you don't have 3G it goes to 2G(EDGE)?
Click to expand...
Click to collapse
Yes. But if your area has been updated to just hspa+ then if you leave that it'll go to edge
Sent from my HTC Sensation
xnifex said:
Yes. But if your area has been updated to just hspa+ then if you leave that it'll go to edge
Sent from my HTC Sensation
Click to expand...
Click to collapse
So basically, on a 4G phone you can't get 3G?
Let's say a 3G phone enters that area, it'll get 3G right?
From what I understand, 4g is basically 3g, so if you don't get 4g, you go to 2g.

[Q] Can GS 4G do TMo & ATT 3G?

Hi, am leaving Sprint. Looking to get a used phone (no contract), that will work on monthly plans like TMo prepaid, Straight Talk (ATT)) w/out a contract. I'm reading good things about both the older Vibrant (SGH-T959), and the newer 4g (SGH-T959V). It's clear from my research that people are successuflly unlocking and able to go back and forth between TMo and ATT SIMs on the older Vibrant. What isn't clear to me is can this be done on the newer SGH-T959V?
Again, I don't care much about 4g. 3g on AT&T is fine. But while on TMo, the 4G would be nice.
Thanks!
diffdrummer said:
Hi, am leaving Sprint. Looking to get a used phone (no contract), that will work on monthly plans like TMo prepaid, Straight Talk (ATT)) w/out a contract. I'm reading good things about both the older Vibrant (SGH-T959), and the newer 4g (SGH-T959V). It's clear from my research that people are successuflly unlocking and able to go back and forth between TMo and ATT SIMs on the older Vibrant. What isn't clear to me is can this be done on the newer SGH-T959V?
Again, I don't care much about 4g. 3g on AT&T is fine. But while on TMo, the 4G would be nice.
Thanks!
Click to expand...
Click to collapse
U can use 4g on tmobile but on AT&T you can only use 2g/edge no 3g
Sent from my SGH-T959V using XDA App
Thanks Brandon. I will then pick up a used, older SGH-T959 (Vibrant), unlock it, and then enjoy the 3g flexibility of both ATT & TMo. It's strange, the T959V is supposed to support the same ATT 3g band as the regular T959, but I can't find proof of this anywhere.
diffdrummer said:
Thanks Brandon. I will then pick up a used, older SGH-T959 (Vibrant), unlock it, and then enjoy the 3g flexibility of both ATT & TMo. It's strange, the T959V is supposed to support the same ATT 3g band as the regular T959, but I can't find proof of this anywhere.
Click to expand...
Click to collapse
oh wait...i didn't know that the vibrant was able to get 3g on ATT ..maybe the sgs4g can support 3g on ATT too..i really don't know..i never knew the vibrant could
Both can use 3g
Sent from my SGH-T959V using XDA App
The captivate can only get edge on Tmobile
Sent from my SGH-T959V using Tapatalk
mbernusg said:
Both can use 3g
Sent from my SGH-T959V using XDA App
Click to expand...
Click to collapse
that's affirmative, i'm using it right now with 3G and is very fast
Yes, I also can confirm the 959V (T-Mobile 4g) is 3g on ATT and is very fast.
Not true...
brandond15 said:
U can use 4g on tmobile but on AT&T you can only use 2g/edge no 3g
Sent from my SGH-T959V using XDA App
Click to expand...
Click to collapse
I have SGS4G and am using ATT. I have 3G with no issues...
posted original question here by accident
I am using unlocked 4g on Cincinnati Bell wireless and the 3g works fine.
However I have not been able to get 4g at all on my phone. When I put a Tmobile sim in it works fine one 4g.
I get a little over 2 mbps download on Cincinnati Bell 3g.
You can just unlock it, I'm using mine on att right now. Only thing is you have a backup sync for T-Mobile instead of att.
Sent from my SGH-T959V using XDA App
Yes it can.
I tried my friend's AT&T sim card and it worked with 3G.
Hmm, has anybody gotten 4G on this phone with AT&T?
Does 4G work with an unlocked SGS 4G on AT&Ts network?
no.
Sent from my myTouch_4G_Slide using XDA App
3G on AT&T will only work one one of the two UMTS bands: 1900 MHz.
Note that the Vibrant 4G doesn't have the 850MHz band (the other band that AT&T uses for 3G data.)
I've seen a posting that there's a way to activate the 850MHz band, but I have not verified that this works. If anyone has got this working so you're working on both bands on AT&T with your Vibrant 4G, let me know.
As an addendum to my own post, looks like the consensus is that while the Vibrant has an option of selecting the 850MHz UMTS band, it actually doesn't enable anything:
forum.xda-developers.com/showthread.php?t=868478&page=2
Has anyone speed tested (w/ dual core tele) ST tmo?? Please share speed test results?? ..speed test (dual core) on Simple Mobile 4g plan appreciated too. I'm looking for these comparisons...Help please?
TIA!

getting no signals usng tmobile on hox

plas help me i just bought two htc one x and got the unlock codes and unlocked the both. now the thing is when i m inserting my tmobile micro sim card i m not getting signal on both phones can some help me on this..
T-Mobile uses 1700/2100mhz bands and the phone uses 850/1900
thedauntlessone said:
T-Mobile uses 1700/2100mhz bands and the phone uses 850/1900
Click to expand...
Click to collapse
He should still be getting a signal and be able to make calls and use edge for data.
Sent from my HTC One X using xda premium
are you getting a X in the signal bars or no data? Have you checked the APNS ?

Thunderbolt to New Cricket 4G LTE

There's is now 4G coverage in the Houston area.My thunderbolt is already fully flash 3G and stable. Want to enable 4G on this phone. Cricket says requires sim card to work. The only sim cards are with the new LG and Samsung S3 by cricket. I know this is possible by using a unlocked 4G cdma LTE phone with sim slot. Does anyone have a unlocked phone on 4G cricket successfully working!!!
willowtree001 said:
There's is now 4G coverage in the Houston area.My thunderbolt is already fully flash 3G and stable. Want to enable 4G on this phone. Cricket says requires sim card to work. The only sim cards are with the new LG and Samsung S3 by cricket. I know this is possible by using a unlocked 4G cdma LTE phone with sim slot. Does anyone have a unlocked phone on 4G cricket successfully working!!!
Click to expand...
Click to collapse
This is in the wrong thread. Verizon 4g will only work with Verizon. Verizon owns the entire 700mhz band that 4g functions off. This makes it so no other network can use Verizon's 4g
Sent from my ThunderBolt using Tapatalk 2
disconnecktie said:
This is in the wrong thread. Verizon 4g will only work with Verizon. Verizon owns the entire 700mhz band that 4g functions off. This makes it so no other network can use Verizon's 4g
Sent from my ThunderBolt using Tapatalk 2
Click to expand...
Click to collapse
I dont think this is true as verizon can still lease their spectrum to other carriers like Straight Talk to piggy back off their network. The biggest problem for him is going to get a non-approved 4g device on verizons network. Verizon does not want people taking flagship devices to other discount carriers. Networks like Cricket dont actually own any spectrum, they just lease it from the bigger carriers at a discount. But verizon only allows a select group of ESN's to connect to it, usually for crappier phones. Some people will go so far as to clone their ESN to get it to work, but that requires special tools developed for your phone and can be quite tricky.
RunNgun42 said:
I dont think this is true as verizon can still lease their spectrum to other carriers like Straight Talk to piggy back off their network. The biggest problem for him is going to get a non-approved 4g device on verizons network. Verizon does not want people taking flagship devices to other discount carriers. Networks like Cricket dont actually own any spectrum, they just lease it from the bigger carriers at a discount. But verizon only allows a select group of ESN's to connect to it, usually for crappier phones. Some people will go so far as to clone their ESN to get it to work, but that requires special tools developed for your phone and can be quite tricky.
Click to expand...
Click to collapse
Well its pretty obvious that Verizon isn't leasing any part of their lte spectrum since there isn't one single optional carrier that a Verizon 4g phone will work with.
Sent from my ThunderBolt using Tapatalk 2
Is it possible to unlock all GSM bands to but used with Cricket 4G LTE service?
A possible NV Edit is probably all that is required
If I installed any other Sim Card Tmobile for example you get sim card unknown error and no signal
This is being done on other Verizon 4G LTE phones where people doing NV SEEM edits and unlocking all GSM bands. Using with prepaid carriers like Simple Mobile
willowtree001 said:
Is it possible to unlock all GSM bands to but used with Cricket 4G LTE service?
A possible NV Edit is probably all that is required
If I installed any other Sim Card Tmobile for example you get sim card unknown error and no signal
This is being done on other Verizon 4G LTE phones where people doing NV SEEM edits and unlocking all GSM bands. Using with prepaid carriers like Simple Mobile
Click to expand...
Click to collapse
So far no one has managed to do this on the thunderbolt. Its not like other 4g phones and is the only one with svdo enabled.
Sent from my ADR6400L using Tapatalk 2
willowtree001 said:
Is it possible to unlock all GSM bands to but used with Cricket 4G LTE service?
A possible NV Edit is probably all that is required
If I installed any other Sim Card Tmobile for example you get sim card unknown error and no signal
This is being done on other Verizon 4G LTE phones where people doing NV SEEM edits and unlocking all GSM bands. Using with prepaid carriers like Simple Mobile
Click to expand...
Click to collapse
Can the bands the radio receives be changed by software? Isn't the radio physically limited to a range of frequencies?
Sent from my ThunderBolt using Tapatalk 2
I was pretty sure that the radio was locked in to stay at the 700mhz spectrum that Verizon owns. I wouldn't be the least but surprised if it were locked in using hardware as well.
Sent from my ADR6400L using Tapatalk 2
If memory serves, Cricket's LTE is courtesy of Verizon, I read it I think on Engadget a while back... Either way, it goes along with Verizon's Rural Coverage Plan to work with regional carriers to bring LTE to places where people would never expect it.
T-Mo works with AT&T phones because both are 1800Mhz or whatever for EDGE, so I would think if Sprint LTE is 700Mhz....
Sent from my Galaxy Nexus using xda app-developers app
jimmyco2008 said:
If memory serves, Cricket's LTE is courtesy of Verizon, I read it I think on Engadget a while back... Either way, it goes along with Verizon's Rural Coverage Plan to work with regional carriers to bring LTE to places where people would never expect it.
T-Mo works with AT&T phones because both are 1800Mhz or whatever for EDGE, so I would think if Sprint LTE is 700Mhz....
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
Verizon owns the upper c block of the 700mhz spectrum. Read this.
http://www.phonescoop.com/articles/article.php?a=187&p=230
Sent from my ADR6400L using Tapatalk 2
jimmyco2008 said:
If memory serves, Cricket's LTE is courtesy of Verizon, I read it I think on Engadget a while back... Either way, it goes along with Verizon's Rural Coverage Plan to work with regional carriers to bring LTE to places where people would never expect it.
T-Mo works with AT&T phones because both are 1800Mhz or whatever for EDGE, so I would think if Sprint LTE is 700Mhz....
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
I doubt Sprint is using 700 they are probably using spectrum they got from the nextel acquisition (not looking stupid now lol). And of Sprint was using 700 and the had an lte roaming agreement, which they don't, with Verizon..... sprint lte phones would be working in allot more places, which they aren't.
Sent from my ThunderBolt using Tapatalk 2
---------- Post added at 09:46 PM ---------- Previous post was at 09:31 PM ----------
http://m.networkworld.com/news/2012/012312-lte-spectrum-255122.html?page=2
If the info from the above article is correct you can see Sprint lte is not compatible with Verizon or ATT. In my searching I also found that apple made 3 different variants of the iPhone 5 with different lte frequency combinations.
http://www.wired.com/gadgetlab/2012/09/iphone5-lte-model/
Sent from my ThunderBolt using Tapatalk 2
willowtree001 said:
Is it possible to unlock all GSM bands to but used with Cricket 4G LTE service?
A possible NV Edit is probably all that is required
If I installed any other Sim Card Tmobile for example you get sim card unknown error and no signal
This is being done on other Verizon 4G LTE phones where people doing NV SEEM edits and unlocking all GSM bands. Using with prepaid carriers like Simple Mobile
Click to expand...
Click to collapse
those other Verizon 4g Lte phones, like the moto Bionic, have radios and antenna that support those GSM frequencies, and the engineering software tools to perform those tasks have been leaked.
Afaik, but I haven't looked in a while, after making those seem edits it unlocks Gsm/Edge for Att, T-Mobile and global roaming. I think it also enables hspa for Att but not T-Mobile due to frequencies the bionic's radio supports or doesn't support. It does not enable Lte for any other carrier.
its my understanding that the radio chips and antennas in the TB only support Cdma/Evdo and VZW's upper 700mhz block LTE
It also doesnt help that ril for the thunderbolt is closed source because of the svdo capabilities in it.
Sent from my ThunderBolt using Tapatalk 2
Anyone try getting/buying a sim card from cricket?
You would need a SIM for the phone to work at all, right, since it is needed for 3G and 1X on Verizon?
Sent from my Galaxy Nexus using xda app-developers app
jimmyco2008 said:
You would need a SIM for the phone to work at all, right, since it is needed for 3G and 1X on Verizon?
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
The sim would be needed for 4g to work. Cricket will provide you with a sim but you will still only get 3g because they can't get Verizon's 4g signal.
Sent from my ADR6400L using Tapatalk 2
But my phone doesn't work at all without a SIM, is it different for cricket?
Sent from my Galaxy Nexus using xda app-developers app
I think to use the phone with cricket you will have to have the sim but still won't be able to use 4g.
Sent from my ADR6400L using Tapatalk 2
Quick Question
"There's is now 4G coverage in the Houston area.My thunderbolt is already fully flash 3G and stable. Want to enable 4G on this phone. Cricket says requires sim card to work. The only sim cards are with the new LG and Samsung S3 by cricket. I know this is possible by using a unlocked 4G cdma LTE phone with sim slot. Does anyone have a unlocked phone on 4G cricket successfully working!!!"
If you don't mind, I was hoping you might be able to tell me how you flashed your thunderbolt to Cricket. I have tried many times unsuccessfully, and to be honest I'm absolutely stuck. I'd appreciate any and all help I can find. Thank you so much Have a wonderful day!
,
Dave

[Q] Anyone use StraightTalk?

Just got this phone and switched my straight talk sim over. I can't get a 3g connection though, only EDGE. My APN is correct based on the straight talk website, checked it multiple times, any suggestions? It's an AT&T based ST sim, think I need a T-Mobile sim instead?
You may of got a T-Mobile band nexus not the at&t banded one
Sent from my Desire HD using xda premium
i use a "att compatible" sim in a i9020a
and a att captivate
both will go thru the whole range of data speeds
up to 3G depending on signal strength...
FWIW
d3adbroke said:
You may of got a T-Mobile band nexus not the at&t banded one
Sent from my Desire HD using xda premium
Click to expand...
Click to collapse
Thinking so, would that be the i9020t?
wareju said:
Thinking so, would that be the i9020t?
Click to expand...
Click to collapse
yes
is that what it says under the battery?
or system/about/baseband?
Yes, and works perfect.
http://www.straighttalksim.com/support.php

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