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[Q] Nexus S SIM unlock?

Hey NSers.
I bought a Nexus S just about the week it came out from Best Buy, but I've decided to move on to another phone. I had thought that purchasing it from Best Buy meant that it shipped unlocked, with no specific carrier, but I just tried an AT&T SIM card in the phone, and it gets no service.
I called T-Mobile, but the woman I spoke to informed me that they couldn't request an unlock code because it's not a phone they actually support.
So I'm wondering how I can unlock it.
Right now, its bootloader is unlocked and it's rooted, if that makes any difference (I'm hoping there will be something easy I can do that doesn't involve contacting either Google or Samsung).
Thanks in advance for any guidance.

your nexus s IS unlocked as of google phones.
the problem is that the nexus s does not support (hardware) AT&T cellular bands.
there is a specific model of the nexus s (I9020A if i'm not wrong) that support those AT&T bands.. sorry.

Gonizahavy said:
your nexus s IS unlocked as of google phones.
the problem is that the nexus s does not support (hardware) AT&T cellular bands.
there is a specific model of the nexus s (I9020A if i'm not wrong) that support those AT&T bands.. sorry.
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Oh, really? I thought it supported AT&T GSM bands, but not the 3G bands.
And no worries. It's an i9020T, so maybe it's unlocked but still works only with TMo. Darn.

willentrekin said:
Oh, really? I thought it supported AT&T GSM bands, but not the 3G bands.
And no worries. It's an i9020T, so maybe it's unlocked but still works only with TMo. Darn.
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I think he meant to say it does not support at&t 3g bands. It should work on any GSM carrier, but may not work on 3g.
Sent from my Nexus S using XDA Premium App

OuncE718 said:
I think he meant to say it does not support at&t 3g bands. It should work on any GSM carrier, but may not work on 3g.
Sent from my Nexus S using XDA Premium App
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Right. But if I put in an AT&T SIM, it should work with AT&T's GSM frequencies, right? I'm really not looking forward to calling Samsung tomorrow.

I should go to best buy and ask if you can swap it for a i9020A.

avili said:
I should go to best buy and ask if you can swap it for a i9020A.
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I9029A isn't sold in best buy. I'd go to AT&T and get a new sim card. Your phone should work just fine on AT&T, u just won't have 3G.

I've had a similar experience with the Canadian carriers, however if the carrier supports GSM bands it will work (like previously said) it's when the carrier only supports HSDPA (like Koodo in Canada does) then you need the specific Nexus S (i9020A in your case).
You could also try adding the APN to see if that will allow you to connect (Settings -> Wireless & Networks -> Mobile Networks -> Access Point Names (APN)) - the details can be found on the forums / your carriers website.

Works for me.
willentrekin said:
Right. But if I put in an AT&T SIM, it should work with AT&T's GSM frequencies, right?
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Works for me. I live in NYC, and I picked up a Nexus S at Best Buy over the Easter break as a quick temp phone till I got my Captivate fixed.
No 3g, but it certainly works on Edge. Makes calls, data works, syncs with google apps, etc.
Maybe you're just in a poor reception spot for ATT...

Thanks for the advice. Will retry. I'd wanted to confirm AT&T would work before I put it on eBay.

[Q] no 3G Sensation/ATT

Hi all, im very new to XDA & have no knowledge of bandwidths. I just recently bought a HTC Sensation (not sure what model, but it was from a local guy). Had it unlocked so i can use it with my ATT plan. every thing was working fine except i had no data & couldnt send/recieve MMS. When first turned on, there was no APN settings on the phone, so i applied the settings stated in the thread APN settings for unlocked Sensation on ATT by mekajt7 on 09/05/11. Now i have data & MMS is working fine execpt my data is only 2G??
If there's anyone out there with more extensive knowledge regarding this topic, or how to get my phone to pick up 3G?? pleeeeeese leave a reply.
ive spent hours online reading about the bandwidths & ive been getting mixed results.... some said yes, it should work & most said no.
I'm in need of some answers
thanks for reading

the only way an sensation can pick up att 3g signals is if you buy one from canada made for their bell carrier. other then that all you can get is edge. if you want 3g or even better, 4g and be in the usa, you need tmobile

thanks for the reply kpholmes. yea, that's the same thing ive been getting from reading online for 4 hours. do you or anyone else reading know the model number for T-Mo's version vs. Bell's version???
i know it's 710a or 710e. but which is which??

DMX804 said:
thanks for the reply kpholmes. yea, that's the same thing ive been getting from reading online for 4 hours. do you or anyone else reading know the model number for T-Mo's version vs. Bell's version???
i know it's 710a or 710e. but which is which??
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The Z710a is the North American (NAM) version sold by Canadian carriers and it supports the 850/1900/2100 3G bands that AT&T uses.
The Z710e supports the European and T-Mobile 3G bands.

tpbklake said:
The Z710a is the North American (NAM) version sold by Canadian carriers and it supports the 850/1900/2100 3G bands that AT&T uses.
The Z710e supports the European and T-Mobile 3G bands.
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Click to collapse
so, T-Mo's is neither of these?? or is it the Z710e??
im just trying to get the model's correctly identified
thanks for the reply

T-mo is the same as european and asian version, it wont work with at&t 3G which is probably what you have. You need to get the canadian sensation from bell or virgin mobile model number z710a. If you look at settings>>about phone>>phone identity, the model number of your phone should be there. If it is z710e, then you are out of luck.

So the Canadian version can use 3G on AT&T? And 4G?

sjespers said:
So the Canadian version can use 3G on AT&T? And 4G?
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Yes the Canadian version can use AT&T 3G and HSPA+ network.

Use XL on T-Mobile USA?

Can we get the ATT HTC One XL unlocked to use it on T-Mobile USA? If yeah, whats the procedure?
Thanks.

Check out my thread on getting this phone to work on WIND (similar to T-Mobile, but in Canada). http://forum.xda-developers.com/showthread.php?t=1610323

madhad said:
Can we get the ATT HTC One XL unlocked to use it on T-Mobile USA? If yeah, whats the procedure?
Thanks.
Click to expand...
Click to collapse
There's a ton of posts on the One X forum where people got it working using EDGE for data. Folks on this forum are trying to get the XL working for 3G data on Wind. If they do, it'll work on T-Mobile U.S. also.

The AT&T model does not have the correct bands to work on 3G/4G TMo. All you will get is Edge.

Red5 said:
The AT&T model does not have the correct bands to work on 3G/4G TMo. All you will get is Edge.
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Click to collapse
There's a huge conversation going on about what's published and what the radio's capable of. There's a hack for the G-Note that folks are going to try and make work on the One X (assuming the h/w supports the bands). With the hack, the G-Note lost a bunch of signal strength and battery life so it's far from perfect.

Red5 said:
The AT&T model does not have the correct bands to work on 3G/4G TMo. All you will get is Edge.
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Click to collapse
Hardware-wise it has.
If you go to HTC USA website you see that it does. The Tegra 3 based international version doesn't, but Rogers/AT&T version does. There is another thread where someone purchased the Rogers version and tried to use it on WIND (which uses the same band as tmobile usa), and got no data (phone is unlocked, but no edge no 3G). If the problem is due to the lack of WIND/tmobile 3G bands, he would have at least get EDGE data. He contacted HTC Canada and HTC verified that the phone hardware indeed support those band, and the issue has to do with Rogers implementation of the software.
The same happened with AT&T Galaxy Note. It supports tmobile 3G band, but was disabled in software. People here are able to open up those bands by flashing new radio on it.
It is still not know whether the AT&T One X has T-Mobile 3G bands disabled in software or not, and if it does, whether it can be easily re-enabled. But the hardware support is there.

So if I buy the att one XL outright (and dont do nothing else) and pop in the tmobile micro sim will it work..meaning make phone calls and all? And it'll just get edge right?

k87 said:
So if I buy the att one XL outright (and dont do nothing else) and pop in the tmobile micro sim will it work..meaning make phone calls and all? And it'll just get edge right?
Click to expand...
Click to collapse
no
10char

I am using my Rogers HTC One XL on Tmobile right now and yes all you get is Edge + voice.

k87 said:
So if I buy the att one XL outright (and dont do nothing else) and pop in the tmobile micro sim will it work..meaning make phone calls and all? And it'll just get edge right?
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Click to collapse
No, it's locked to AT&T man.

cmaxwe said:
I am using my Rogers HTC One XL on Tmobile right now and yes all you get is Edge + voice.
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Click to collapse
As long as you purchase an unlock code and unlock the phone then it will give you edge + voice on Tmobile.

cmaxwe said:
I am using my Rogers HTC One XL on Tmobile right now and yes all you get is Edge + voice.
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Click to collapse
This sucks. I'm on Tmobile and was holding out for the AT&T One X to use on Tmobile. Didnt want the One S because of the small screen. May have to go with the Galaxy Nexus for 400.00.
Sent from my HTC Incredible S using xda premium

Well assuming you unlock it and live in a refarmed 1900 hsdpa area from tmobile can you get 3G that way?

methodz said:
Well assuming you unlock it and live in a refarmed 1900 hsdpa area from tmobile can you get 3G that way?
Click to expand...
Click to collapse
1900 hasn't been refarmed in my area but that would be the only option for somebody to use the One X on 3g/4g.
Sent from my HTC Incredible S using xda premium

Is there or will there be an unlock for the one x so we can use it (phone calls, edge etc) on the tmobile network?

madhad said:
Is there or will there be an unlock for the one x so we can use it (phone calls, edge etc) on the tmobile network?
Click to expand...
Click to collapse
Yes...most definitely. Once the AT&T version is officially released, you'll likely see numerous posts on how to unlock. There are some threads already starting if you search...

Here is an unlock site the says they can unlock the ONE X (AT&T Version) phone already. It costs in the neighborhood of $15, but that is a small price to pay to carrier unlock. If you live in a TMobile area that has reassigned their HSPA+ to the same 1900MHz Band AT&T uses it should be well worth being able to grab a tmobile sim for back up data or switching over completely. From what I have read, TMobile will be moving most of their markets HSPA+ to the 1900 MHz band in the not too distant future so this could be win win. I am going to give this a shot on May 4th when my phone is supposed to show up, I will post back with my success or failure.

Just a random thought that came into my head.
T-mobile is getting the One S, which also uses the S4. Given that the radio is integrated in the S4 chipset, and both the One X(AT&T) and One S are using the same SoC, they probably have the same capabilities with regards to the networks. In that case, it may "simply" be a matter of producing a modem driver with support for the T-mobile bands.
Disclaimer: This is all conjecture on my part, as I'm not entirely sure what is involved with cell phone radios and the more modern technologies.

mesasone said:
Just a random thought that came into my head.
T-mobile is getting the One S, which also uses the S4. Given that the radio is integrated in the S4 chipset, and both the One X(AT&T) and One S are using the same SoC, they probably have the same capabilities with regards to the networks. In that case, it may "simply" be a matter of producing a modem driver with support for the T-mobile bands.
Disclaimer: This is all conjecture on my part, as I'm not entirely sure what is involved with cell phone radios and the more modern technologies.
Click to expand...
Click to collapse
Sorry, that's a negative.
There are several variations of the Snapdragon S4. Some with LTE, some without.
In this case, the One X LTE has the S4 MSM8960 with LTE. The One S has the S4 MSM8260A, without LTE.

What exactly is WCDMA AWS band? Because on the HTC website it says the One XL has that. I thought that is both bands for tmobile 4G.

BNIB Fido One S for 400$... good deal or no?

Hey guys I came across a few brand new in box Fido One s's for about 400$ each
Would this model be compatible with the custom roms in this forum?
I was also considering the Canadian Wind SGS 3 but there is practically no development for that phone since it has different baseband than the T-mobile version
If the fido variant is compatible with the custom roms I might just have to flag down the first seller; tell them to shut up and take my money!!
he he

I bought a Fido version a week ago on Kijiji for 400 to use on Wind. An amazing deal for sure. I thought I would want an S3 but the price, $650, and the size were too much for me. Haven't regretted it one bit and am running CM9 on it. Can't wait for Jelly Bean.
Sent from my HTC One S using xda premium

Definitely a good deal! (for those looking for a One S........)
The Fido One S is compatible to all custom ROMs and, once unlocked, run fine on AWS bands (T-Mobile, Wind, Mobilicity, Videotron).

Wait, the Fido One S supports AWS bands? Do all Canadian One S'? I did not know that One S' were pentaband.

ShensMobile said:
Wait, the Fido One S supports AWS bands? Do all Canadian One S'? I did not know that One S' were pentaband.
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Click to collapse
I don't think its Pentaband and I can't test it.
But I can use my Videotron (AWS) SIM in it and it show Videotron unlike other incompatible phones that go on Rogers' network since Videotron don't have GSM antennas. (I don't have data on this account tho)
There was a thread about this last month and it listed all Canadian FCC numbers and supported bands.
Sent from my HTC VLE_U using xda premium

Yes. As I said in my previous post.
Sent from my HTC One S using xda premium

ShensMobile said:
Wait, the Fido One S supports AWS bands? Do all Canadian One S'? I did not know that One S' were pentaband.
Click to expand...
Click to collapse
Yea. As I said in my previous post.
Sent from my HTC One S using xda premium

what!
Rodsky11 said:
Yea. As I said in my previous post.
Sent from my HTC One S using xda premium
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I can't get mine to work on mobilicity, i've got a fido htc one s that i picked up for a whopping $250... i am pissed.

Rodsky11 said:
Yea. As I said in my previous post.
Sent from my HTC One S using xda premium
Click to expand...
Click to collapse
Here's a link showing the specs. See for your self.
http://www.telusmobility.com/en/ON/htc_one_s/index.shtml

century mblower
The One S from Fido works on Wind for sure, it's what I use. I have also used a mobilicity sim in it. I unlocked it, set the APNs and it was good to go.

tempted said:
I can't get mine to work on mobilicity, i've got a fido htc one s that i picked up for a whopping $250... i am pissed.
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I have same problem as you.
I have a VirginMobile HTC One S (FCC ID: PJ40110) which is penta-band and includes AWS. The phone is SIM unlocked and was successfully tested with Bell, Rogers and Wind. IT DOES NOT WORK WITH MOBILICITY.
Looking for some ideas. Would re-flashing radio only help? TIA.

mike.tfc said:
I have same problem as you.
I have a VirginMobile HTC One S (FCC ID: PJ40110) which is penta-band and includes AWS. The phone is SIM unlocked and was successfully tested with Bell, Rogers and Wind. IT DOES NOT WORK WITH MOBILICITY.
Looking for some ideas. Would re-flashing radio only help? TIA.
Click to expand...
Click to collapse
According to the Virgin Mobile site, it's a triband 3G device, which excludes the 1700mhz frequency that Mobilicity uses. I just purchased a Mobilicity one. Got it unlocked and it works fine on Rogers. I'm guessing Mobilicity got the same version as T-Mobile in the US which includes the 850mhz frequency.

tempted said:
I can't get mine to work on mobilicity, i've got a fido htc one s that i picked up for a whopping $250... i am pissed.
Click to expand...
Click to collapse
Wirelessgirl said:
According to the Virgin Mobile site, it's a triband 3G device, which excludes the 1700mhz frequency that Mobilicity uses. I just purchased a Mobilicity one. Got it unlocked and it works fine on Rogers. I'm guessing Mobilicity got the same version as T-Mobile in the US which includes the 850mhz frequency.
Click to expand...
Click to collapse
The facts that it works fine on WIND and the same FCC ID as T-mobie phones clearly show that it is an AWS phone. According to the HTC letter posted on thread 1673378, Mobilicity could lock AWS bands for unlocked phones.

mike.tfc said:
The facts that it works fine on WIND and the same FCC ID as T-mobie phones clearly show that it is an AWS phone. According to the HTC letter posted on thread 1673378, Mobilicity could lock AWS bands for unlocked phones.
Click to expand...
Click to collapse
I wouldn't be surprised if Mobilicity did that. IMO, Mobilicity is worse than the Big 3. I have had my fair share of problems with Mobi.

Wirelessgirl said:
I wouldn't be surprised if Mobilicity did that. IMO, Mobilicity is worse than the Big 3. I have had my fair share of problems with Mobi.
Click to expand...
Click to collapse
I need to apologize for the false alarm.
I have tried again with an active Mobilicity SIM card and I can confirm that the Virgin branded, SIM unlocked, HTC One S it is working indeed. It will not authenticate automatically but if you do a network search and select the network manually it will work. I've noticed the same behavior on WIND as well.
Thank you everyone.

mike.tfc said:
I need to apologize for the false alarm.
I have tried again with an active Mobilicity SIM card and I can confirm that the Virgin branded, SIM unlocked, HTC One S it is working indeed. It will not authenticate automatically but if you do a network search and select the network manually it will work. I've noticed the same behavior on WIND as well.
Thank you everyone.
Click to expand...
Click to collapse
I'm glad you got it working! I was certain the One S worked with all 3G carriers. The Virgin Mobile site is a bit confusing though. When I popped my Rogers sim in, I just had to put the Rogers APN in. I will evidentally pop my Moblicity sim back in since I already paid for the first month. I just wanted to make sure everything was working well on the Rogers network.

can not get 4g(at&t) on verizon galaxy s3!!!

ok, i got some problem with the verizon galaxy s3. I use at&t simcard on this phone and it seems working just fine. Here's a thing, after set apn setting on the phone i just only get edge speed(2g), i need someone helps me to figure out how to get the 3g/4g speed on this phone or give me a right apn setting for this. i really appreciated. thanks very much!

The bands for AT&T 3G/4G are locked on the handset, you are going to have stick on edge sadly!!

djteotancolis said:
The bands for AT&T 3G/4G are locked on the handset, you are going to have stick on edge sadly!!
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really? so there's no way to unlock these bands? I might consider to resell this phone again. Anyways, thanks for your reply!

hunbemylover said:
really? so there's no way to unlock these bands? I might consider to resell this phone again. Anyways, thanks for your reply!
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Till now no one figured out how to unlock the bands! so your outta luck..would suggest trading it in for a AT&T phone!

djteotancolis said:
Till now no one figured out how to unlock the bands! so your outta luck..would suggest trading it in for a AT&T phone!
Click to expand...
Click to collapse
It's not a worst thing though. I got this one for only 100$ off craiglist and it works just fine. It just does not work right with a data, remind me of few years back when 2g was a fastest data service lol. Thanks again for let me know this issue.

AT&T runs on GSM band while Verizon runs on a CDMA network. I'm surprised your SIM even works. What other said is correct though, you are restricted to the slow 2G Edge speeds.

DarkMenace said:
AT&T runs on GSM band while Verizon runs on a CDMA network. I'm surprised your SIM even works. What other said is correct though, you are restricted to the slow 2G Edge speeds.
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Well the S3 is a World phone, hence it comes with GSM bands too! if you hit Europe or Asia you will get 3G

djteotancolis said:
Well the S3 is a World phone, hence it comes with GSM bands too! if you hit Europe or Asia you will get 3G
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Click to collapse
Right it does. But they use different bands in other countries. Our phone isn't capable of using any and all bands. Only certain ones. If somehow these bands were unlocked, then you could get 3g here.
Sent from my SCH-I535 using Tapatalk 4 Beta