Develop Bugs

[Q] Activating CDMA Verizon Nexus

I currently have a Samsung Charge and was wondering what would happen if I put my current SIM into a gnexus. would that allow me to use the phone or does it need to be activated by verizon?

Well, you won't be able to put the SIM in the Nexus because the Charge uses a full sized SIM and the Galaxy Nexus uses a micro SIM. However, it would work if you cut your SIM down.

imnuts said:
Well, you won't be able to put the SIM in the Nexus because the Charge uses a full sized SIM and the Galaxy Nexus uses a micro SIM. However, it would work if you cut your SIM down.
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I disagree, at least from what the man at the VZW store told me.. The SIM is for LTE only, this I know to be true. I was informed that I would have to call VZW to switch between phones. I specifically asked this question because I had always used GSM phones before where you could swap SIMs freely.

WiredPirate said:
I disagree, at least from what the man at the VZW store told me.. The SIM is for LTE only, this I know to be true. I was informed that I would have to call VZW to switch between phones. I specifically asked this question because I had always used GSM phones before where you could swap SIMs freely.
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Imnuts is correct. I switch devices all the time by moving my sim around. If it was LTE only, you could take it out and have at least voice service.

adrynalyne said:
Imnuts is correct. I switch devices all the time by moving my sim around. If it was LTE only, you could take it out and have at least voice service.
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Huh. So this is only true for LTE phones? If I buy another LTE VZW phone I can just swap the SIMs freely and I will have service just like with GSM phones? So that means the SIM is NOT for LTE only like I was informed at VZW?

WiredPirate said:
Huh. So this is only true for LTE phones? If I buy another LTE VZW phone I can just swap the SIMs freely and I will have service just like with GSM phones? So that means the SIM is NOT for LTE only like I was informed at VZW?
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Correct. As long as the sims are the same size, its a matter of drop it in and power up.
If not, you have to cut down your sim or use a micro to full adapter.

adrynalyne said:
Correct. As long as the sims are the same size, its a matter of drop it in and power up.
If not, you have to cut down your sim or use a micro to full adapter.
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Okay thanks. I know the people at the VZW store dont know everything but **** you would think they would know a simple thing like that. Hmm, just yesterday I was reading in a thread about data dropouts where the guy said it worked fine chen set to CDMA only but LTE cause dropouts, he said the solution was to get a new SIM and it has been working fine ever since. So the SIM has to do with CDMA and LTE. I am thinking about testing this with my buddies Droid2 Global.. Thanks again to both of you for correcting my misconception, I am pretty sure it is a widespread misconception too.

the LTE sim authenticates your phone to the network and registers it.
a coworker has a LTE ipad and he takes his SIM out of his phone and pops it into his ipad all the time and has internet access.

WiredPirate said:
Okay thanks. I know the people at the VZW store dont know everything but **** you would think they would know a simple thing like that. Hmm, just yesterday I was reading in a thread about data dropouts where the guy said it worked fine chen set to CDMA only but LTE cause dropouts, he said the solution was to get a new SIM and it has been working fine ever since. So the SIM has to do with CDMA and LTE. I am thinking about testing this with my buddies Droid2 Global.. Thanks again to both of you for correcting my misconception, I am pretty sure it is a widespread misconception too.
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Very widespread misconception. Verizon says you simply cannot do it. I've yet to meet a Verizon employee who has said otherwise, unless they are techno geeks.

adrynalyne said:
Very widespread misconception. Verizon says you simply cannot do it. I've yet to meet a Verizon employee who has said otherwise, unless they are techno geeks.
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the guy i got my phone from told me you could ask long as it was a LTE phone and the sim fit.
plus i tried it on my fiance's thunderbolt

adrynalyne said:
Correct. As long as the sims are the same size, its a matter of drop it in and power up.
If not, you have to cut down your sim or use a micro to full adapter.
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Cool beans, makes me want another LTE phone, to swap around on diff days. I dont know why I said I was gonna try it with my friends D2G, its not LTE, duh! This is very good to know and makes me really happy.

I swap my SIM between my Nexus and Charge sometimes (rarely) and it works fine. I have an adapter that I cut from an old SIM to use so the microSIM sits in the correct location. AFAIK, the LTE SIM takes care of activating the CDMA portion on it's own, allowing you to swap around as much as you like.

Can a 3G Sim work on this phone?

So, I'm debating right now between the Hox and the gs3 and honestly the only reason why I can't get this phone is because its lte. I use a 3G sim for all my phones (except my nitro, I don't have a sim in that at all) so I need to know if one can insert a 3G sim and still get data. Oh, and I heard this uses a microsim slot? Tim to get my sim cut....
Sent from my LG-P930 using xda premium

Both hox and GSIII have micro sim slots. It does have 3g, I use it all the time as there is no 4G in Pennsylvania. Not sure if you'd have to sim unlock it though.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

corythug said:
Both hox and GSIII have micro sim slots. It does have 3g, I use it all the time as there is no 4G in Pennsylvania. Not sure if you'd have to sim unlock it though.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
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Oh. Thanks. Just asking cuz my nitro only works with specifically designed 4G at&t sims. All other carriers, whatever sims they give, work fine.
Sent from my LG-P930 using xda premium

why are you resistant to update your SIM card? also your 4G LTE connectivity will depend on your data plan.

I had a iPhone 4 3G Microsim and i had to go to AT&T to get a new sim card because my S3 would not pick up data. After a new sim card and adjustments to my account it was finally able to pick data.

J Prime said:
I had a iPhone 4 3G Microsim and i had to go to AT&T to get a new sim card because my S3 would not pick up data. After a new sim card and adjustments to my account it was finally able to pick data.
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Same thing for me, except i didnt need a new sim. All they had to do was change the imei on my account so my phone with that imei can receive data. The rep told me that its because you can only have one phone with data at a time, as opposed to just being able to switch sims just to receice cellular service for calls.

Post questions in QnA please

meaintsmart said:
Same thing for me, except i didnt need a new sim. All they had to do was change the imei on my account so my phone with that imei can receive data. The rep told me that its because you can only have one phone with data at a time, as opposed to just being able to switch sims just to receice cellular service for calls.
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I went through similar a long time ago when I got my Atrix. I upgraded from a iPhone 3G and just continued using same SIM. At&t just updated my data to "4G" and updated my imei and everything was groovy from then on. I'm on a whole new account for my S3 though
Sent from my SAMSUNG-SGH-I747 using xda premium

3g will work if you use the regular apn. If you use the LTE apn (PTA), that will only work with an LTE sin card.

[Q] Force Roaming GSM Networks

My phone service, (i wireless), has mostly EDGE in the service area which really pisses me off.
I live in Garner and sadly I can't user Verizon's LTE which is available in the area because it is CDMA.
Anyway, I'm usually in a town which has AT&T in it (not Garner) and they offer 3G/4G.
I don't care if you think AT&T isn't the best, or is slow.
i wireless is having major network improvements this year and until I get 4G; I want AT&T.
How can I acquire their service, I want to force roam to them.
Can someone tell me how to do this?
I am running Android 4.1.2 (CM10).
Thanks!

http://forum.xda-developers.com/sitesearch.php?q=force roam at&t

WOAH ZOMG SO HELPFUL.
Honestly, that was really helpful.
I've already searched; that's why I'm asking here.
I've tried other methods.
Most force roaming is with CDMA networks.
Thanks for being so helpful.
Someone who actually knows help me please!

Can anyone help me?

electro` said:
Can anyone help me?
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The galaxy nexus is a carrier unlocked unbranded phone... Just slap an at&t SIM card in it...
Unless I'm completely missing something here.
Sent from my Galaxy Nexus using xda premium

You aren't, but I just want to roam; not have another plan. Would sim unlocking do me any good?
Sent from my Galaxy Nexus using xda app-developers app

electro` said:
You aren't, but I just want to roam; not have another plan. Would sim unlocking do me any good?
Sent from my Galaxy Nexus using xda app-developers app
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It's already sim unlocked... Just go into the mobile data section of your settings and select your carrier
Sent from my Galaxy Nexus

"Your SIM Card does not allow a connection to this network."
Maybe I should mention that my phone is an import?
Yes it is unlocked, I knew that already.

electro` said:
"Your SIM Card does not allow a connection to this network."
Maybe I should mention that my phone is an import?
Yes it is unlocked, I knew that already.
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your APN settings are tied to the simcard.
the phone has nothing to do with roaming, your sim determines where you can and cant access towers (except for emergency calls, those are always allowed)

Zepius said:
your APN settings are tied to the simcard.
the phone has nothing to do with roaming, your sim determines where you can and cant access towers (except for emergency calls, those are always allowed)
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Yeah I know that.
But even if there's nothing but AT&T for a service and I try and select it, it won't work.
Changing my APN settings could work, but idk.

electro` said:
Yeah I know that.
But even if there's nothing but AT&T for a service and I try and select it, it won't work.
Changing my APN settings could work, but idk.
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you need a sim that connects to the ATT network. you are using a provider that uses tmobile.
you're trying to do something with the phone that has NOTHING to do with the phone.
EDIT: also if you want 4g LTE through att, you will never have it as the phone does not support LTE in the GSM variant.

Zepius said:
you need a sim that connects to the ATT network. you are using a provider that uses tmobile.
you're trying to do something with the phone that has NOTHING to do with the phone.
EDIT: also if you want 4g LTE through att, you will never have it as the phone does not support LTE in the GSM variant.
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I'm not an idiot, I thought that that was common sense.
I want 4G HSPA+.
T-Mobile is a priority.
You can use AT&T still.
When I tried roaming to it though it wouldn't accept it.

electro` said:
I'm not an idiot, I thought that that was common sense.
I want 4G HSPA+.
T-Mobile is a priority.
You can use AT&T still.
When I tried roaming to it though it wouldn't accept it.
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i never called you an idiot so dont get all defensive.
prepaid plans generally do not let you roam. if they do, its usually voice only.

Zepius said:
i never called you an idiot so dont get all defensive.
prepaid plans generally do not let you roam. if they do, its usually voice only.
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I didn't mean to come off defensive, I'm just tired.
My plan isn't prepaid either, it's post paid.
AT&T comes up as a network option and I have used it before on previous phones.

Did you ever get this figured out? I have the exact same problem as you. I also have iwireless and have the slow 2g when 4g signal is low. I am looking to force roam on AT&T when I don't have iwireless 4g. Hoping to hear back. Thanks

Switched to Straight Talk, using TMO SIM, only get EDGE, can I get better data?

Hey guys, I asked awhile back about switching to ST and I've done it. I finally got data working by using a TMO SIM, but I can only get EDGE, no more, no less. Even in relatively large cities in my area that have TMO towers, I only get EDGE. My question is, is there anything I can do to get better data?

I have Verizon LG G4 on Straight Talk Verizon Towers and everything works great! Not sure what your issue is. Only issue I see is when I make a phone call, it drops to 1x always

photos.by.fako said:
I have Verizon LG G4 on Straight Talk Verizon Towers and everything works great! Not sure what your issue is. Only issue I see is when I make a phone call, it drops to 1x always
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That's because you're not using Advanced Calling (VoLTE). On Verizon's network, calls always drop to 1X unless you're using Advanced Calling. In the past, most Verizon phones didn't indicate this. They would continue to show whatever data connection the phone had (3G, 4G) even though the call was being done over 1X. Several recent Verizon devices have been more honest about which networks are actually in use, including the G4.
So, what you're experiencing isn't an issue. It's what should be happening.

photos.by.fako said:
I have Verizon LG G4 on Straight Talk Verizon Towers and everything works great! Not sure what your issue is. Only issue I see is when I make a phone call, it drops to 1x always
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That's because you're using a Verizon ST SIM, the OP is using a T-Mobile ST SIM. Also, you need to enable Advanced Calling on your account and your phone to use voice and data at the same time over LTE.
To the OP, I have the same problem. When I put my T-Mobile SIM in my VS986 I only get 2G at home, while LTE only works in the older LTE sites that are using band 4 primarily. Most 2G > LTE sites are using band 2, which according to the Verizon spec page this phone supports, but it must not be active as it doesn't work. I've been looking at ways to enable band 2 without any success yet.

To the OP, you added the APN configs for Straight Talk T-Mobile, correct?
Sent from my VS986 using Tapatalk

official.xian said:
Hey guys, I asked awhile back about switching to ST and I've done it. I finally got data working by using a TMO SIM, but I can only get EDGE, no more, no less. Even in relatively large cities in my area that have TMO towers, I only get EDGE. My question is, is there anything I can do to get better data?
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Click to collapse
I just opened a thread asking about VS986 wcdma bands availability. I was reading LG specs and they say this phone has no 3g, just 2g and LTE. Reading in many other web pages they say this phone has all 4 wcdma bands available. Maybe they are software locked?
I think, I made a mistake buying this phone to be used in a GSM network. Have you checked with Verizon/Tmo rep?

photos.by.fako said:
I have Verizon LG G4 on Straight Talk Verizon Towers and everything works great! Not sure what your issue is. Only issue I see is when I make a phone call, it drops to 1x always
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What are your LTE speeds like? I thought about making the switch but then I read that Verizon limits LTE speeds on ST to 5MBPS...Is that true? As it is my 3g+ speeds end up being faster than that most of the time.

rick09 said:
What are your LTE speeds like? I thought about making the switch but then I read that Verizon limits LTE speeds on ST to 5MBPS...Is that true? As it is my 3g+ speeds end up being faster than that most of the time.
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I'm getting better than 5Mbps, but definitely shaped/limited bandwidth. If you actually use 10Mbps+ regularly, keep shopping.

Using this phone on AT&T, can't get 3g data

I cancelled service with verizon, and put my att sim card into this phone.
But the best data connect I can get is edge (2g). I don't expect this phone to get ATT's lte network, but is there a way to get 3g data connection? Edge is just too slow.
Also, is voice quality tied with network type? I feel the voice quality was worse in comparison to my ATT phone. But the signal shows full bars.
Thanks.
Edit: today it magically worked. I don't know what happened, as I didn't do anything to it. It is now running on HSPA+, with very nice speed.

whatever100 said:
I cancelled service with verizon, and put my att sim card into this phone.
But the best data connect I can get is edge (2g). I don't expect this phone to get ATT's lte network, but is there a way to get 3g data connection? Edge is just too slow.
Also, is voice quality tied with network type? I feel the voice quality was worse in comparison to my ATT phone. But the signal shows full bars.
Thanks.
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Did you configure the right APN settings for AT&T?
https://www.att.com/esupport/article.jsp?sid=KB424489&cv=820

konradsa said:
Did you configure the right APN settings for AT&T?
https://www.att.com/esupport/article.jsp?sid=KB424489&cv=820
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Yes, after setting it up I was able to connect to EDGE. But that is only 2g speed. I read online that many people were able to connect to 3g (HSPA+).
Some of them mentioned reporting IMEI to ATT. Would this matter?

whatever100 said:
Yes, after setting it up I was able to connect to EDGE. But that is only 2g speed. I read online that many people were able to connect to 3g (HSPA+).
Some of them mentioned reporting IMEI to ATT. Would this matter?
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Try to call ATT and make sure they provision your SIM card with 4G LTE service. (you might need an IMEI that is compatible with ATT LTE for them to activate that option)

sorry wrong post