Database Develop

[Q] Droid 3 and AT&T

Hello, guys. I just came to USA and I do not how everything works here. I want Droid 3 as you can already know because I am posting here) I can buy this perfect device only locked by verizon but I do not like their plans so I think that AT&T will be good for me.
So as I understand after reading this post http://forum.xda-developers.com/showthread.php?t=1172521&page=1 the necessary steps are the following:
1) I buy the phone for example here Droid 3 by motorola .
2) I buy the unlocking code at ebay (the seller is freedomobile).
3) I unlock the device using above code.
4) I buy the AT&T SIM-card.
5) I activate the SIM-card
and everything should work. Is everything correct?
And one more question: will I have the warranty?
How about buying already unlocked phone here http://negrielectronics.com/motorola-xt860-droid-3-850-1900-3g-unlocked.html
Thank you very much.

no it wont

volcomnator999 said:
no it wont
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What question is this answer to? And why?

g3n1uss said:
What question is this answer to? And why?
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I am not going to preach about searching or anything because it's quite lame IMO.
However, to answer your question, it won't work. From what I understand, Verizon was able to convince/modify/something with Motorola to prevent GSM networks inside the US to use the phone. I am not sure of the technical reasons specifically, but as far as I know, an unlocked Droid 3 just will not work on US GSM networks.
Besides, I strongly discourage against AT&T. There are reasons why people are willing to pay slightly more for Verizon.

Verizon tinkered with the baseband firmware which blocks all US GSM networks. We cannot replace the firmware unless we have an unlocked bootloader.
Sent from my DROID3 using Tapatalk

Might not answer your question but I thought I saw someone post saying they use their droid 3 on cricket. *shrug*
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wootizzle said:
Might not answer your question but I thought I saw someone post saying they use their droid 3 on cricket. *shrug*
Sent from my DROID3 using XDA App
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The D3 can be flashed to Cricket. The Droid 2 Global, which is also a global, can be flashed to Cricket. The thing is that VZW doesn't want their global phones being used on GSM bands (AT&T/T-Mobile) in the US.
Sent from my DROID3 using xda premium

So, the only way to buy the phone in USA is choosing the operator at first and then choosing the phone on the web site of the operator, correct?
And how about already unlocked devices by negrielectronics?

If you can get the proper unlocking code it WILL work on ATT. I know TeamBlackHat(which has a good reputation) sells these codes and has successfully done it.
Sent from my DROID3 using xda premium

My question is will I be able to activate my SIM-card in unlocked droid 3?

kshen1 said:
If you can get the proper unlocking code it WILL work on ATT. I know TeamBlackHat(which has a good reputation) sells these codes and has successfully done it.
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Really? Did I miss something? Do you have a link?

Google it...
Sent from my DROID3 using Tapatalk

Couldn't find.

Guys, I need your advice about negrielectronics.com Can I trust them? They told me that selling devices already unlocked and can be used with AT&T.

g3n1uss said:
Guys, I need your advice about negrielectronics.com Can I trust them? They told me that selling devices already unlocked and can be used with AT&T.
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They are pretty reputable. They sent Jon over at technobuffalo a htc sensation that was unlocked and could be used on att. I would say go for it.
Sent from my DROID3 using Tapatalk

XT860 (Bell and OEM) may work, read few success stories about it.
The regular XT862, which is verizon's version will not work definitely.
I'm not from the US though, but I visit the states every summer and I know that my upcoming XT862 will not work while i'm visiting

aGoGo said:
XT860 (Bell and OEM) may work, read few success stories about it.
The regular XT862, which is verizon's version will not work definitely.
I'm not from the US though, but I visit the states every summer and I know that my upcoming XT862 will not work while i'm visiting
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You don't know that...we've seen Droid pros, droid 2 globals on ATt thanks to tbh.
Sent from my DROID3 using Tapatalk

Have similar question with regards to this problem.
I am using a Droid3 XT862 that has been unlocked, and I'm living in Jamaica.
However for some reason I cannot get the phone to work with one of my local networks. I can get it to work with two of them, namely Digicel and Claro. But I cant get it to work with Lime for some strange reason. I know the phone is capable to operate on the bandwidths which are listed below:
Digicel: GSM 900/1800 MHZ, UMTS 900 MHZ
Lime: GSM 850/1900 MHZ, UMTS 850/1900 MHZ
Claro: GSM 850/1900 MHZ, UMTS 850/1900 MHZ
All of which can work on the phone, and I also believe I shouldn't have the problem because I'm not using a US network where use is firmware locked. But my network of choice is Lime who is the only network that offers 3g locally. When I put in my lime sim it says "invalid sim card/no sim" and when I try to register to the lime network the phone says "Your sim card does not allow a connection to this network".
Any suggestions/solutions?

rweb said:
Really? Did I miss something? Do you have a link?
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For realz! Get us a link to this ish!

kshen1 said:
You don't know that...we've seen Droid pros, droid 2 globals on ATt thanks to tbh.
Sent from my DROID3 using Tapatalk
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(@wjones) Just head over Droid 2 Global section.
But before you do so, let me give you the bad news. TBH solution will not work on D3, neitheron does on newer D2G/DPro firmwares. It is all described there by CellZealot (TBH) in the D2G thread. Sorry, if you want D3 on AT&T, go buy Bell XT860.
Sent from my DROID2 GLOBAL using Tapatalk

[Q] Unlocking xt860 for USA

So i'm travelling to the states for 5 days and someone suggested to me instead of paying for a bunch of roaming add-ons from Bell, i may be better off to unlock my phone and get a sim card on a pay as you go plan. Is this possible and more importantly is it worth it?
Any advice is appreciated

I would personally bite the bullet. It'll probably cost you about $20 to unlock the phone and then you will have to get an AT&T SIM card or pay as you go, probably won't have data on it, etc etc... Last time I went down to the US I spent about $50 on roaming. You're only down there for 5 days, how much time do u want to spend screwing with your phone?
Another thing you could do is turn on airplane mode but keep the wifi turn on, and get a google voice number. Pair that with GrooVe IP, and you have a $5 wi-fi only solution.

The data is what I'm more interested in. My phone will double as my GPS unit, and Google search to find stuff to do. Bell charges 30 bucks for 10 MB.
I'm probably gonna e doing 4-5 trips a year to the states, on a pay as you go I could probably just reload everytime I go down, once I have the sim
Sent from my rooted xt860

Just go to Crackberry, go to the SIM unlocking section, find a site that allows you to unlock for free, then yeah T-Mobile has prepaid service, or maybe AT&T I don't know. Anyway, you get the idea.
Sent from my DROID3 using XDA App

would this work with tmobile's 4g/3g network?

Stanley,
AFIAK the 3G frequencies used by T-Mobile is AWS, which the XT860 is not compatible with.

Hey guys sorry just a quick question...
Would the Bell XT860 work on Rogers/Fido once it was unlocked? Has anyone actually tried it?
The reason I ask is because I've read that apparently the Verizon Droid 3 was not compatible with Fido/Rogers even after being unlocked.
Thanks

Bell XT860 definitely works on Rogers when unlocked. I'm using one right now on Rogers. (Just running the Chinese ME863 ROM on it right now). When i was on the stock Bell ROM it also worked fine.
Sent from my ME863 using XDA App

danifunker said:
Stanley,
AFIAK the 3G frequencies used by T-Mobile is AWS, which the XT860 is not compatible with.
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So it wouldn't work with T-Mobile? I read on a post ssomewhere that someone was using it for tmobile
Sent from my HTC Sensation Z710e with Beats Audio using XDA App

LaZiODROID said:
Bell XT860 definitely works on Rogers when unlocked. I'm using one right now on Rogers. (Just running the Chinese ME863 ROM on it right now). When i was on the stock Bell ROM it also worked fine.
Sent from my ME863 using XDA App
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Thanks, I appreciate the clarification.

It may only get EDGE.
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danifunker said:
Stanley,
AFIAK the 3G frequencies used by T-Mobile is AWS, which the XT860 is not compatible with.
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I know nothing about this stuff, but google search tells me that t-mobile uses 1900 MHz GSM and 2100MHz UMTS which are both supported by the xt860. They also support HSPA+
does this not mean the xt860 should work on t-mobile?

The phone would need the phone to support the 1700mhz band as well.

danifunker said:
The phone would need the phone to support the 1700mhz band as well.
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Any success with unlocked XT860 working in the USA and getting 3G?
I read elsewhere, it will work on AT&T 3G?
Anyone, please?

All you should have to do is unlock the SIM slot.

J.Tichi said:
Any success with unlocked XT860 working in the USA and getting 3G?
I read elsewhere, it will work on AT&T 3G?
Anyone, please?
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I'm running on at&t u.s.a. in Pennsylvania with full 3g on the droid 3.
Sent from my XT883 using xda premium

I use an AT&T SIM in an unlocked Bell XT860 (and my carrier is actually Rogers) when travelling to the U.S. Everything works fine and I get the H symbol indicator.
Sent from my XT860 using xda premium

68rescue said:
I'm running on at&t u.s.a. in Pennsylvania with full 3g on the droid 3.
Sent from my XT883 using xda premium
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Hey fireeater,
I just ordered an XT883 that will be unlocked and will be used with my T-mobile sim. T-Mobile uses 1700 & 2100 for their 3g while AT&T uses 850/1900. Do you know if the agreement between AT&T and T-mobile will allow the XT883 to get 3g with t-mobile?

Tmobile is refarming their 3g. So you will get 3g by the end of the year.
Sent from my xt862 using xda app-developers app

Unlocked phone on vzw?

Hey guys, just curious, as I'm having withdrawals from actually having a decent phone that doesn't make me want to use it as a hockey puck.
I have access to a tmobile Samsung galaxy s2, for a cheap price, if I were to unlock it, would it be capable of running on the Verizon network? Obviously with owning a d3, I have a sim card, would it work? Also, again out of pure curiosity, would an unlocked att phone work on our network?
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Dubs devious said:
Hey guys, just curious, as I'm having withdrawals from actually having a decent phone that doesn't make me want to use it as a hockey puck.
I have access to a tmobile Samsung galaxy s2, for a cheap price, if I were to unlock it, would it be capable of running on the Verizon network? Obviously with owning a d3, I have a sim card, would it work? Also, again out of pure curiosity, would an unlocked att phone work on our network?
Sent from my DROID3 using xda premium
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It all depends on if the phones are capable of running on CDMA/EVDO. Do some research on the phones sorry I'm not much help
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Google (your phone model) specs and see if the radio bands are ones that are supported by verizon.
Sent from my XT860 using xda premium

No the SGS2 uses GSM and Verizon uses CDMA. Maybe someone would trade you phones?

Even if the phone has CDMA hardware like any Sprint phone, Verizon will only allow devices on their network if they are authorized for use on Verizon.

Is the HTC One's sim tray unlocked?

At my second job my company is sending me a Sprint HTC one to use as my work phone and they want me to activate it on my Sprint account or they'll pay the deposit to open the account if there's one. But where I live I don't good coverage from them and there 3G is SUPER SLOW, I can't really stand the sucky service in my area. I Have T-Mobile and have good coverage where ever I go and was wondering if the sim tray in the Sprint Htc one is Unlocked so I can just activate with my T-Mobile account and pop in a T-Mobile SIM card. If any one can please confirm this would be much appreciated. Thanks in advance.

No
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I'm 99% sure it's a no. T-Mobile uses different radios from Sprint, I think AT&T and T-Mobile use the same radios, which is why you can use unlocked AT&T phones on T-Mobile.

001isj said:
I'm 99% sure it's a no. T-Mobile uses different radios from Sprint, I think AT&T and T-Mobile use the same radios, which is why you can use unlocked AT&T phones on T-Mobile.
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This. Att and tmobile use gsm radios and sprint and verizon use cdma.
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The sprint one has support for some gsm bands. Read this...
http://s4gru.com/index.php?/blog/1/entry-342-updated-all-for-htc-one-htc-one-for-all/
Sent from my EVO using Tapatalk 4 Beta

david279 said:
The sprint one has support for some gsm bands. Read this...
http://s4gru.com/index.php?/blog/1/entry-342-updated-all-for-htc-one-htc-one-for-all/
Sent from my EVO using Tapatalk 4 Beta
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I'm sure those bands don't exist anywhere significant.
Sent from my HTC One using xda app-developers app

It says the HTC one has been modified for sprint and it doesn't confirm that the phone supposes gsm on the sheet it only specifies CDMA and lte frequencies
Sent from my EVO using xda premium

According to some Sprint forums it is a world phone. It just isn't unlocked.
Sent from my LG-LS970 using xda premium

A world phone can have many different interpretations such as using a gsm network somewhere else or just roaming outside the us and we can all roam outside the us such as mexico which is domestic roaming and I think that is also considered a world phone since ur using it somewhere else
Sent from my EVO using xda premium

In the OP's case, a discussion as to whether the phone is SIM locked or unlocked on the One is completely moot because the Sprint variant of the device does not possess the GSM or UMTS/WCDMA frequency bands needed to operate in most of the Americas, including the United States. It only does GSM 900/1800 and UMTS 2100. In other words, even if it was unlocked for other companies' US GSM or UMTS SIM cards it wouldn't be able to get any signal in the US, or for that matter, anywhere in most of North, Central, or South America or in other parts of the world where the GSM or UMTS 850 or 1900 MHz bands are used.

david279 said:
The sprint one has support for some gsm bands. Read this...
http://s4gru.com/index.php?/blog/1/entry-342-updated-all-for-htc-one-htc-one-for-all/
Sent from my EVO using Tapatalk 4 Beta
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shook187 said:
I'm sure those bands don't exist anywhere significant.
Sent from my HTC One using xda app-developers app
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According to this article, which I have linked several times on here in response to this question, the ONE on Sprint most likely has GSM 900/1800mhz capability. Which is the GSM most all of the world uses except for the US. That is why it is a "World Phone."

raptoro07 said:
According to this article, which I have linked several times on here in response to this question, the ONE on Sprint most likely has GSM 900/1800mhz capability. Which is the GSM most all of the world uses except for the US. That is why it is a "World Phone."
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Partially true since this does not only apply to the US specifically. See my post right before yours.

myphone12345 said:
True since this does not only apply to the US specifically. See my post right before yours.
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Fixed that for you. You could not use it in the US.

but even by flashing a customized firmware once the phone has been rooted the phone is unable to manage others sim cards?
is there any change to remove the sim lock somehow?

manuele.f said:
but even by flashing a customized firmware once the phone has been rooted the phone is unable to manage others sim cards?
is there any change to remove the sim lock somehow?
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Even if it was sim unlocked it wont work. Its a hardware limitation, not a software one. It cant run on the frequencies that North America uses for GSM.

It does run frequencies that we run here in the us. It supports 1900 and 2100 utms. 850 and 900 gsm. Both are used here in the us by at&t and t-mobile.
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david279 said:
It does run frequencies that we run here in the us. It supports 1900 and 2100 utms. 850 and 900 gsm. Both are used here in the us by at&t and t-mobile.
Sent from my HTCONE using Tapatalk 4 Beta
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Isnt it hardware limited to a point where it cant operate on a 3g/hspa gsm data network? i.e. if you do sim unlock and take it to a gsm carrier you will not get anything over 2g/edge speed?

Unlocked moto x

So I'm thinking about buying an unlocked moto x originally through Verizon but was used on t-mobile, my question is can anyone guarantee me that it'll work on att if I put my apn settings and will i get LTE ... any answer is appreciated
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JReeher said:
So I'm thinking about buying an unlocked moto x originally through Verizon but was used on t-mobile, my question is can anyone guarantee me that it'll work on att if I put my apn settings and will i get LTE ... any answer is appreciated
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Ok... So you're thinking about buying an unlocked phone that was originally a Verizon phone but was used on T-Mobile that you want to use on AT&T? That is a bit convoluted, each vendor uses different bits of spectrum and a Verizon phone isn't a pure GSM phone such as AT&T or T-Mobile might have, I would be cautious, why not just get an unlocked AT&T device?
That being said, if it can be used on a GSM network like T-Mobile it should work on AT&T, the problem being that - as I said - each carrier uses different bits of the spectrum.

Save yourself the potential hassle and buy the proper AT&T model.

Yeah i am being cautious I'm passing on it thanks for the responses
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