[Q] What if.... - Xperia Z1 Q&A, Help & Troubleshooting

what if you put in t-mobile usa apn information with an at&t sim would it pick up tmobiles lte reception ?

teamHTC said:
what if you put in t-mobile usa apn information with an at&t sim would it pick up tmobiles lte reception ?
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huh? Don't you need a t-mobile sim card with a t-mobile account in order to pick up a t-mobile lte signal?
Basically it won't work.

teamHTC said:
what if you put in t-mobile usa apn information with an at&t sim would it pick up tmobiles lte reception ?
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Click to collapse
That is the dumbest question ever. No it isn't possible as people would free load on T-Mobile's LTE network while paying AT&T... You either move to T-Mobile for LTE or stick with AT&T and HSPA+ with the C6903 Z1 model... Or wait for C6906 which works on AT&T LTE!

The OP is an idiot. Obviously doesn't understand the concept of common sense. How can you use one carriers SIM and use anothers APN? Oh wait you CAN'T.

Related

Nexus One Question

Yes i did search and couldn't come up with nothing so im turning to my peers for help.
I wanted to know is there a way you can check and see if the nexus one is att branded or t-mobile? If you cannot does the att branded nexus one work with t-mobile 3g?
There's 2 GSM models. One that works with att 3g and one that works with T-Mobile 3g.
yes i know thanks for the information i was asking if there is a way to check which one is which?
AT&T has a different model number under the battery. I forget the beginning numbers but the last three numbers for T-Mobile is 100 for AT&T it is 110. Both models will work on either network's GSM networks but only AT&T's phone will get 3G on AT&T's network.
ok thanks would the att nexus one connect to 3g for t-mobile 3g i know t-mobile use different frequencies but on google they look the same
nevermind the att does not support aws please close
cdw9800 said:
yes i know thanks for the information i was asking if there is a way to check which one is which?
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Click to collapse
Sorry bout that.
cdw9800 said:
Yes i did search and couldn't come up with nothing so im turning to my peers for help.
I wanted to know is there a way you can check and see if the nexus one is att branded or t-mobile? If you cannot does the att branded nexus one work with t-mobile 3g?
Click to expand...
Click to collapse
Check this out:
http://forum.xda-developers.com/showthread.php?t=679119
if your phone is PB99110 (check underneath battery) then it is AT&T model with 850 MHz 3G freq
Click to expand...
Click to collapse
Here ya go.

Unlocked phone

Dumb question
When I look to buy HTC Vivid 4G LTE Some said unlocked. Will my at&t sim card (i am on infuse 4g) work with this even they are from same service AT&T?
Sent from my SGH-I997 using xda premium
I am not sure I understand what you are saying but you will have to get a new sim card, one that supports lte.
You can use the same SIM card. You just won't get LTE.
Aus_Azn said:
You can use the same SIM card. You just won't get LTE.
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Click to collapse
So I will have to go at&t store to replace card for lte?
Sent from my SGH-I997 using xda premium
cline2 said:
So I will have to go at&t store to replace card for lte?
Sent from my SGH-I997 using xda premium
Click to expand...
Click to collapse
If you have LTE in your area then yes. Go in and say you need a new sim card. They will probably charge u a nominal fee
ATT shouldn't charge for new sim - only if it is not a corporate store.
U do not need a diff sim if u have the 4g already ....I came from inspire and didn't have to change my card and my LTE works
randong said:
U do not need a diff sim if u have the 4g already ....I came from inspire and didn't have to change my card and my LTE works
Click to expand...
Click to collapse
Hm. I came from an Inspire and couldn't get any data til they gave me a new SIM...which confused me, but I didn't have data with my old SIM, then I had data with my new one...so I didn't ask too many questions
I came from an HTC Aria and had to get a new SIM, something about it being provisioned for LTE.
strose09 said:
I came from an HTC Aria and had to get a new SIM, something about it being provisioned for LTE.
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This. AFAIK, the new SIM card allows you to use the PTA APN, at which point they put you on the LTE "equivalent" of your current data plan.
homeslice976 said:
Hm. I came from an Inspire and couldn't get any data til they gave me a new SIM...which confused me, but I didn't have data with my old SIM, then I had data with my new one...so I didn't ask too many questions
Click to expand...
Click to collapse
I think it has something to do with how new Ur card is mine didn't have to be changed just he had to provision it that's it
Confirm need to switch sim or can you alter APN settings on phone to pick up LTE?
So, I went from a galaxy s2 with unlimited data plan, very expensive, but my SIM won't pick up LTE when put it in my new Htc Vivid....so are you saying I have to have a new LTE SIM?
Will AT&T give me one as I would think they want traffic to move over to the LTE service if I am already paying for an unlimited plan?
Anyone run into this?
I cannot change my plan to anything more expensive as it is a corp plan but it is already an unlimited voice data plan....
maddie01 said:
So, I went from a galaxy s2 with unlimited data plan, very expensive, but my SIM won't pick up LTE when put it in my new Htc Vivid....so are you saying I have to have a new LTE SIM?
Will AT&T give me one as I would think they want traffic to move over to the LTE service if I am already paying for an unlimited plan?
Anyone run into this?
I cannot change my plan to anything more expensive as it is a corp plan but it is already an unlimited voice data plan....
Click to expand...
Click to collapse
Is it unlimited data as well? I was under the impression that lte was for data and phones calls switch back to a lower network setting. If it is unlimited data you would need a new sim to take advantage of the lte. They should not charge you for the sim, I got it for free when I upgraded to the vivid from the captivate.
megatronisabeast said:
Is it unlimited data as well? I was under the impression that lte was for data and phones calls switch back to a lower network setting. If it is unlimited data you would need a new sim to take advantage of the lte. They should not charge you for the sim, I got it for free when I upgraded to the vivid from the captivate.
Click to expand...
Click to collapse
That is the case.
When they provision your plan, they put you on the LTE equivalent of what you already had. No change in price or terms or anything. You just have Smartphone Unlimited LTE instead of Smartphone Unlimited or whatever it's called.
Hi all, you were correct, ATT store gave me a new LTE capable SIM, the weird thing is that the only APN setting on the phone is called PTA....and won't give me any data connection at all, I am NOT in a LTE area now but I would think it would revert to the system that is available, 2g,3G or Hspa?
I added another APN but does this mean I have to manually switch back and forth when I get into an let area? This seems ridiculous?
Any advice I would appreciate?
Is there one APN setting that will do it all?
Other question. I am on infuse 4g (4g sim card in it) wonder iif I get other phone from Verizon or T-Mobile that has 4g and unlocked. Will I get 4g speed from them or what??
Thanks
Sent from my SAMSUNG-SGH-I997 using xda premium
hi, Infuse is a GSM phone so no Verizon....
As of now...tmobile sim might work but would only get you 2g...and you have to do a SIM unlock...tmobile 3g only works on 1700 band and Infuse has 3G bands of 850, 1900 and 2100 (UK band).....
Now, article today mentioned tmobile might open 1900 band on their hspa+ network but it is later this year and again you would have to SIM unlock...hspa+ is a pseudo 4g...it is not LTE but much faster than typical 3G,...that could work for ya...
Hope that helps.....
maddie01 said:
hi, Infuse is a GSM phone so no Verizon....
As of now...tmobile sim might work but would only get you 2g...and you have to do a SIM unlock...tmobile 3g only works on 1700 band and Infuse has 3G bands of 850, 1900 and 2100 (UK band).....
Now, article today mentioned tmobile might open 1900 band on their hspa+ network but it is later this year and again you would have to SIM unlock...hspa+ is a pseudo 4g...it is not LTE but much faster than typical 3G,...that could work for ya...
Hope that helps.....
Click to expand...
Click to collapse
Yea I guess to get phones by AT&T.
Sent from my SAMSUNG-SGH-I997 using xda premium

[Q] International HTC ONE, best option for USA?

Hi,
I have an unlocked GSM international HTC One, bought from Handtec (UK).
I'm going to USA next week, and wanted to buy a prepaid sim card with a 3g plan. So far the best option that i found is T-mobile. But i have doubts about compatibility.
Will i be able to have LTE with my current internatonal One with a T-mobile network ? Or at least 3G/H ? or is it going to be limited only to Edge, as i've read somewhere ? I think T-mobile only uses 1700 and 2100 UMTS bands, which i think my phone is not compatible with...please correct me if im wrong.
Which US GSM network would be the best (compatibility wise) option for my phone ?
Thanks
Please, someone answer me...
I just need to know if i'll be able to have something more than Edge speed with my current phone under a t-mobile network ? Or my only option is At&T ?
Thanks
Benfran said:
Hi,
I have an unlocked GSM international HTC One, bought from Handtec (UK).
I'm going to USA next week, and wanted to buy a prepaid sim card with a 3g plan. So far the best option that i found is T-mobile. But i have doubts about compatibility.
Will i be able to have LTE with my current internatonal One with a T-mobile network ? Or at least 3G/H ? or is it going to be limited only to Edge, as i've read somewhere ? I think T-mobile only uses 1700 and 2100 UMTS bands, which i think my phone is not compatible with...please correct me if im wrong.
Which US GSM network would be the best (compatibility wise) option for my phone ?
Thanks
Click to expand...
Click to collapse
I may be wrong (so you may want to cross check the info).
T-Mobile uses AWS bands for LTE; International HTC One doesn't support the AWS required by T-Mobile. You MIGHT be able to use 3G/H.
Sprint is CDMA so that's off the table.
I think AT&T will be your best. You might wanna check the coverage in the intended area of use of any carrier you choose.
Get a straight talk att SIM. 45 and att network... We don't really offer the traveler SIM options other countries do... In fact, because of "terrorism" you would be better off buying a Tracfone at Wal-Mart because most services require you to register your phone to a US address to even activate the SIM
Sent from my HTC One using Tapatalk 4 Beta
---------- Post added at 05:31 PM ---------- Previous post was at 05:30 PM ----------
Unfortunately that means calls only. I don't particularly like att but it's almost guaranteed that you will get support if you get their GoPhone service
Sent from my HTC One using Tapatalk 4 Beta

Verizon HTC 1 to T-mobile

Hey everyone. So i have a question that i can't find on here so im going to ask it. I have a Verizon HTC one unlocked. The sim car works fine and i can do everything on the phone with the T-mobile sim card. The issue is its always Edge data. Is there a specfic APN i have to use? something im not seeing? Does anyone else have this issue? It is a stock factory HTC One, nothing custom.
super-6-1 said:
Hey everyone. So i have a question that i can't find on here so im going to ask it. I have a Verizon HTC one unlocked. The sim car works fine and i can do everything on the phone with the T-mobile sim card. The issue is its always Edge data. Is there a specfic APN i have to use? something im not seeing? Does anyone else have this issue? It is a stock factory HTC One, nothing custom.
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Click to collapse
I don't think the Verizon model will have the correct radio frequencies to use T-Mo's LTE or HSPA+ network, hence you're stuck on Edge. If you're staying with T-Mo, I'd suggest selling your current One and buying a T-Mo specific HTC One.
LBN1 said:
I don't think the Verizon model will have the correct radio frequencies to use T-Mo's LTE or HSPA+ network, hence you're stuck on Edge. If you're staying with T-Mo, I'd suggest selling your current One and buying a T-Mo specific HTC One.
Click to expand...
Click to collapse
This is pulled from Verizons website
Network: LTE, CDMA/1xEVDO Rev. A (800/1900 MHz)
Global Network: EDGE/GSM (850/900/1800/1900), HSPA/UMTS(1900/2100) aGPS capable for E911 emergency location, aGPS (assisted), sGPS (simultaneous), Standalone GPS, eCompass, GLONASS
T-mobile uses the 1900 Mhz base band and the HSPA as well. So i don't see the issue in that one.
super-6-1 said:
This is pulled from Verizons website
Network: LTE, CDMA/1xEVDO Rev. A (800/1900 MHz)
Global Network: EDGE/GSM (850/900/1800/1900), HSPA/UMTS(1900/2100) aGPS capable for E911 emergency location, aGPS (assisted), sGPS (simultaneous), Standalone GPS, eCompass, GLONASS
T-mobile uses the 1900 Mhz base band and the HSPA as well. So i don't see the issue in that one.
Click to expand...
Click to collapse
From what I can tell, nobody uses the dual 1900/2100 to achieve 4G like TMO. The UMTS referred to on that phone is for worldwide use, not US. So while it may have the frequencies, it is not set up to use them like TMO. Your software and firmware are set up to work with Verizon and overseas, not with a competitor like TMO. TMO refers to theirs as HSPA+. However, it might work on the new "reframed" 1900 bands (which is called HSPA), but those are not very highly deployed. Unfortunately, I don't see LTE on that list of frequencies. The TMO LTE is really great. EDIT: I mean TMO LTE, which is also 1700/2100.
I suppose you could try unlocking it and flashing the TMO radio, but there is an entire thread on trying to unlock TMO frequencies (in that case on the developer version), and no one has figured it out yet.
I concur that your best bet would be to sell the phone and get a TMO model.
stevedebi said:
From what I can tell, nobody uses the dual 1900/2100 to achieve 4G like TMO. The UMTS referred to on that phone is for worldwide use, not US. So while it may have the frequencies, it is not set up to use them like TMO. Your software and firmware are set up to work with Verizon and overseas, not with a competitor like TMO. TMO refers to theirs as HSPA+. However, it might work on the new "reframed" 1900 bands (which is called HSPA), but those are not very highly deployed. Unfortunately, I don't see LTE on that list of frequencies. The TMO LTE is really great. EDIT: I mean TMO LTE, which is also 1700/2100.
I suppose you could try unlocking it and flashing the TMO radio, but there is an entire thread on trying to unlock TMO frequencies (in that case on the developer version), and no one has figured it out yet.
I concur that your best bet would be to sell the phone and get a TMO model.
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Click to collapse
Yeah thats what im thinking. I need to contact and t-mobile rep and see if the re-farmed LTE here. Ill call and ask.
Alright so i called the rep and he said the area i am has been re-farmed to the 1900 range and i should be getting at least HSPA/3G but im not. Very odd issue
super-6-1 said:
Hey everyone. So i have a question that i can't find on here so im going to ask it. I have a Verizon HTC one unlocked. The sim car works fine and i can do everything on the phone with the T-mobile sim card. The issue is its always Edge data. Is there a specfic APN i have to use? something im not seeing? Does anyone else have this issue? It is a stock factory HTC One, nothing custom.
Click to expand...
Click to collapse
Verison use the CDMA, maybe that's why you can only use 2.5G network, just like some phones in China, they only have GSM in common
xunqren said:
Verison use the CDMA, maybe that's why you can only use 2.5G network, just like some phones in China, they only have GSM in common
Click to expand...
Click to collapse
yes but this phone has 4g lte already in it which accepts the sim card. Also, i have seen other verizon htc ones with t-mobile and never had a issue. I fell i may have to use a custom rom.
super-6-1 said:
yes but this phone has 4g lte already in it which accepts the sim card. Also, i have seen other verizon htc ones with t-mobile and never had a issue. I fell i may have to use a custom rom.
Click to expand...
Click to collapse
What he is referring to is that what Verizon uses as "3G" is CDMA technology. So although they (T-Mobile and Verizon) may be on the same frequency they're using totally different technologies. Just because it has a sim card slot for a Verizon sim doesn't mean the device will be compatible with another carrier's sim. A custom ROM would not resolve this issue. Your best bet would be to sell this device and purchase one from T-Mobile. :fingers-crossed:
jayrivi said:
What he is referring to is that what Verizon uses as "3G" is CDMA technology. So although they (T-Mobile and Verizon) may be on the same frequency they're using totally different technologies. Just because it has a sim card slot for a Verizon sim doesn't mean the device will be compatible with another carrier's sim. A custom ROM would not resolve this issue. Your best bet would be to sell this device and purchase one from T-Mobile. :fingers-crossed:
Click to expand...
Click to collapse
I know what the best way to go is but i am very curious as to what is really keeping it from going out of edge. baseband? Is the TMO and Verizon radios the same? these are things i need to know! >.<
super-6-1 said:
I know what the best way to go is but i am very curious as to what is really keeping it from going out of edge. baseband? Is the TMO and Verizon radios the same? these are things i need to know! >.<
Click to expand...
Click to collapse
My understanding is that the devices run on different systems for 3G and different LTE bands. You wont get more than GSM compatibility (GPRS, EDGE). Hopefully it is something that a software hack can fix but if you read around all the HTC One forums you will see no one has found it. Right now it is not possible.
jayplusone said:
What he is referring to is that what Verizon uses as "3G" is CDMA technology. So although they (T-Mobile and Verizon) may be on the same frequency they're using totally different technologies. Just because it has a sim card slot for a Verizon sim doesn't mean the device will be compatible with another carrier's sim. A custom ROM would not resolve this issue. Your best bet would be to sell this device and purchase one from T-Mobile. :fingers-crossed:
Click to expand...
Click to collapse
My question is that HTC makes phones for all T mobile verison sprint the same, so I believe its just software problem that we cant use Tmobile 4g lte on Verizon unlocked phone. SO does anyone have any comment for that?
aaloknaik said:
My question is that HTC makes phones for all T mobile verison sprint the same, so I believe its just software problem that we cant use Tmobile 4g lte on Verizon unlocked phone. SO does anyone have any comment for that?
Click to expand...
Click to collapse
It is hardware not software that is the issue. The T-Mobile variant has different bands than the other variants including Verizon. T-Mobile is a GSM variant while Verizon is a CDMA variant. Here is a comparison of the specs for the variants.
CDMA and GSM technology requires the antenna to be done differently. If they are not programmed to use those signals. Nothing you can dox will change it short of putting a new antenna in.
majmoz said:
It is hardware not software that is the issue. The T-Mobile variant has different bands than the other variants including Verizon. T-Mobile is a GSM variant while Verizon is a CDMA variant. Here is a comparison of the specs for the variants.
Click to expand...
Click to collapse
SO how do i know if my phone is Verizon CDMA unlocked or GSM unlocked
aaloknaik said:
SO how do i know if my phone is Verizon CDMA unlocked or GSM unlocked
Click to expand...
Click to collapse
Because you can only unlock GSM. Cdma uses the serial/esn number of the device.
Has there been any update on this? I called tmobile and they said it was simply because I couldn't put in the APN. So, there's no chance that rooting the phone and putting a tmobile rom on it would fix the problem and let me get more than edge speeds.
I myself have been wondering the answer to this. The device might seem the same but under the cover they are different. The actual daughter board which the camera, vibrating thing, volume rocker, power button are connected to are fairly different from each other. The CDMA variant is not compatible with the GSM variant. Not even by adding a CDMA daughter board to the GSM motherboard and vice versa, the are made quiet differently and will not be able to use GSM bands on a CDMA m7
Sent from my HTC My touch 4G
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1. Enable USB Debugging before flashing custom recovery.
2. Make a backup via recovery before granting apk's root permission, editing system files, or flashing a new Rom
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[Q] Nexus 6 3G/LTE issues

I have a Nexus 6 that I bought from Motorola.com and am using it with an activated nano sim card on Verizon. Previously I have had no problems with getting signal (LTE or 3G) but now that it just updated to 5.1.1 I can only get 3G when network settings are on "LTE/CDMA" and I get LTE when set on "LTE/GSM/UMTS". I am in an area that has pretty strong 4G but cant get it unless I change the setting. Has anyone else had a problem with this? Also I am open to suggestions for alternate ROMS that have been found to work well on Verizon. Thanks.
jgrove64 said:
I have a Nexus 6 that I bought from Motorola.com and am using it with an activated nano sim card on Verizon. Previously I have had no problems with getting signal (LTE or 3G) but now that it just updated to 5.1.1 I can only get 3G when network settings are on "LTE/CDMA" and I get LTE when set on "LTE/GSM/UMTS". I am in an area that has pretty strong 4G but cant get it unless I change the setting. Has anyone else had a problem with this? Also I am open to suggestions for alternate ROMS that have been found to work well on Verizon. Thanks.
Click to expand...
Click to collapse
Verify that you are using the correct APN. However, I believe the correct setting for you would be LTE/GSM as Verizon is a GSM carrier.
LTE/CDMA works fine for me on Verizon.
Verizon is not a GSM Carrier. They are CDMA just like Sprint. The only reason both companies use SIM cards is for LTE only.
graydiggy said:
Verizon is not a GSM Carrier. They are CDMA just like Sprint. The only reason both companies use SIM cards is for LTE only.
Click to expand...
Click to collapse
Thanks for clarification! I thought AT&T was the other CDMA and the rest were GSM besides Sprint. Again, thanks for setting me straight.
AT&T and T-Mobile are GSM, Sprint and Verizon are CDMA. Just for future reference.

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