[Q] Does unlocking mean any cell operator use? - General Questions and Answers

Hi!
Quick question - if I buy Google Galaxy Nexus for Verizon and unlock it - does it mean I will be able to use any GSM operator?
Up to the moment I was only buying only unlocked phones and had no opportunity to mess with a locked device, but here is a real chance to save a buck by means of ebay and so called Verizon phones..
Thanks!

Negatory. It would only work on other cdma carriers. Pretty useless. Unlocking is only really worth a damn for gsm devices. There is not even a SIM card slot on the VZW GN, other than the LTE SIM that goes there, but that's not compatible with gsm.
Sent from my SGH-T989 using XDA App

Yep. Plus if you travel a lot, cdma is utterly useless because of all the processes required to sign it up to a carrier.

So say I were to buy an AT&T phone and use my T-Mobile pay as you go 4G monthly SIM in it... Smooth sailing, right?
I'm currently under the impression that it's more of a phone to phone issue, rather than a definitive yes or no. Doesn't help I've been locked up in CDMA since I started playing around with phones.

Well for me the unlocking mobile it is preaty useless (in my opinion of course)

Thanks a lot for help!
Without all of your advice I'd have ended up with $550 spent on a phone which can't be used
I have a corporate GSM SIM card (11 years old it is) with local Russian cell phone operator, and I have to stick with it...

net_wonder said:
Without all of your advice I'd have ended up with $550 spent on a phone which can't be used
I have a corporate GSM SIM card (11 years old it is) with local Russian cell phone operator, and I have to stick with it...
Click to expand...
Click to collapse
Good god 11 year old sim?! pics!

TJBunch1228 said:
Negatory. It would only work on other cdma carriers. Pretty useless. Unlocking is only really worth a damn for gsm devices. There is not even a SIM card slot on the VZW GN, other than the LTE SIM that goes there, but that's not compatible with gsm.
Sent from my SGH-T989 using XDA App
Click to expand...
Click to collapse
Actually the verizon galaxy nexus does have a sim slot and there is a possibility it could be used with GSM carriers. This theory started with the Rezound. So when you pop in a sim, you can turn off LTE and select GSM. Everything works except outgoing SMS (don't know about 3rd party messenging apps).

Please use the Q&A Forum for questions &
Read the Forum Rules Ref Posting
Moving to Q&A

UVClay said:
So say I were to buy an AT&T phone and use my T-Mobile pay as you go 4G monthly SIM in it... Smooth sailing, right?
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Click to collapse
Not quite. Phone functions would be ok. But for data you would have only 2G (edge). No 3G or 4G.
Sent from HTC G2

Crashdamage said:
Not quite. Phone functions would be ok. But for data you would have only 2G (edge). No 3G or 4G.
Sent from HTC G2
Click to expand...
Click to collapse
Not 100% true. The Skyrocket is pentaband and can be used on t-mobile.

Related

No Sim Card Slot on Evo 4G?

Does Evo 4G support prepaid sim card slot?
ahmedalishah said:
Does Evo 4G support prepaid sim card slot?
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NO NO NO NO NO
had to be 10 characters
and after thought, how is this development?
Um No....
10damnchar
For the 2,000TH time, Out Of all the post, out of all the videos you done seen. does it look like the htc evo has a sim card slot? ITS NOT A WORLD PHONE LIKE THE BLACKBERRY IS
Someone please close this thread. If you don't know the difference between GSM and CDMA you probably shouldn't be in a dev forum. Besides a question like this should be in the QA forum. Not dev.
if you take a pair of scissors I think you can clip a sim card to fit in the microsd slot.... that might work
no need to be harsh guys... yes this should've been in q&a but it was a simple question... this is a community... let's not get the evo forum off to a bad start....
by the way no... this is a cdma phone, but the hd2 is gsm and someone will probably port android to it down the line....
looneylu said:
no need to be harsh guys... yes this should've been in q&a but it was a simple question... this is a community... let's not get the evo forum off to a bad start....
by the way no... this is a cdma phone, but the hd2 is gsm and someone will probably port android to it down the line....
Click to expand...
Click to collapse
It's hard not to be harsh, when it's mentioned asked every few hours... So common that you don't even have to search to find a thread about it.
Yeah, so don't bother replying and call it a day
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Sent via the XDA Tapatalk App
Does Evo 4G support prepaid sim card slot?
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Click to collapse
Google > you
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Sent from Evo 4g
Can we just get a sticky on threads like this:
NO. IT DOES NOT UNLOCK. IT CANNOT TAKE A SIM.
To address the other point that OP might be wondering about, the phone isn't on any Sprint-backed prepaid carrier either and I doubt it can be activated on them.
In fairness to the OP, even HTC seems to screw this up:
http://www.shopamerica.htc.com/cell-phones/productdetail.htm?prId=37149
Can I make and receive calls outside the US and Canada?
Yes!
International roaming allows you to make and receive calls while outside the US and Canada in most countries. For GSM carriers, the phone has 900mhz & 1800mhz frequencies. For CDMA carrier's phones, these must have an alternate 900mhz & 1800mhz GSM chipset also built in. All calls made and received while abroad usually incur additional per minute charges. Most carriers offer discounted international roaming as a plan feature for a nominal monthly fee.
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Questions about this phone unlocked.

Is it true I can simply put an at&t sim card in the phone and use a dumb phone plan if I buy an unlocked ones? Also does it get at&t 3g?
Sent from my Galaxy Nexus using XDA
Besides SIM unlocking you need to perform the US band unlock as described both here, on Rootzwiki, and who knows where else, to use the DROID2 GLOBAL on AT&T or T-Mobile.
As AT&T uses standard WCDMA bands, yes, it will work with their 3G voice/data network as long as the band unlock hack is in place.
Gasai Yuno said:
Besides SIM unlocking you need to perform the US band unlock as described both here, on Rootzwiki, and who knows where else, to use the DROID2 GLOBAL on AT&T or T-Mobile.
As AT&T uses standard WCDMA bands, yes, it will work with their 3G voice/data network as long as the band unlock hack is in place.
Click to expand...
Click to collapse
Thanks I couldn't find any posts that were newer than a year ago. Now to find someone selling one here with everything done.
Sent from my Galaxy Nexus using XDA
I doubt there are a lot of band unlocked D2Gs on sale as reflashing the SBF image breaks the hack.
You can perform the hack yourself provided you buy a SIM unlocked device.
Refer to http://forum.xda-developers.com/showthread.php?p=22769743 for instructions. Do note that whenever you soft-brick your device you will need to SBF back to 2.4.x and apply this hack.
Remember to never ever update the device to 4.5.629.
Thanks. Hopefully I get lucky but its Greta to have that link
Sent from my Galaxy Nexus using XDA
Gahh Its Lee said:
Is it true I can simply put an at&t sim card in the phone and use a dumb phone plan if I buy an unlocked ones? Also does it get at&t 3g?
Sent from my Galaxy Nexus using XDA
Click to expand...
Click to collapse
Dumb phone plan from who? If you get everything done (band unlock as described in the other posts) you can use your phone with an AT&T SIM and don't need any plan at all from Verizon. Is the theory that AT&T won't recognize it as a smart phone because it is not one that they ever sold?
silver6054 said:
Dumb phone plan from who? If you get everything done (band unlock as described in the other posts) you can use your phone with an AT&T SIM and don't need any plan at all from Verizon. Is the theory that AT&T won't recognize it as a smart phone because it is not one that they ever sold?
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Click to collapse
I guess so. I found a list of every phone that works for att dumb plans and it was on it.
Sent from my Galaxy Nexus using XDA
Any non-carrier-locked GSM phone that has compatible bands can work on AT&T's network. You don't even need a list, just check which bands AT&T uses and check the phone's tech specs.
Gasai Yuno said:
Any non-carrier-locked GSM phone that has compatible bands can work on AT&T's network. You don't even need a list, just check which bands AT&T uses and check the phone's tech specs.
Click to expand...
Click to collapse
I think the problem is that people don't want AT&T to recognize the phone as a smartphone and helpfully add on a data package on postpaid plans, (presumably these people are intending to use Wifi for data). The claim was made that some people had moved a SIM from dumb phone to a smartphone purchased elsewhere, and suddenly they got billed for a data package. See, for example, http://www.zdnet.com/blog/bott/can-at-t-really-add-a-pricey-data-plan-onto-your-wireless-bill/2667
In the past, there were posts saying that you were "safe" if you used a model that AT&T had never sold, as their system would not be able to recognize it as a smartphone. Not sure how true this really is!
They probably detect it based on IMEIs. But yeah, it's just a speculation without clear facts.

[Q] rooted with custom rom cant activate to new number

I left sprint recently sold my phone with it rooted and and a patched ota rom on it. The guy went to get it activated and they couldn't get it done, said it was freezing up, sprint rep knew it was rooted, and said it needs to be back to stock unrooted???? Is this true? Anybody know?
Any time you take your phone to sprint ALWAYS UNROOT. They can tag the account. You should of unrooted before selling the phone
Sent from my PG06100 using Xparent Pink Tapatalk 2
saw429 said:
I left sprint recently sold my phone with it rooted and and a patched ota rom on it. The guy went to get it activated and they couldn't get it done, said it was freezing up, sprint rep knew it was rooted, and said it needs to be back to stock unrooted???? Is this true? Anybody know?
Click to expand...
Click to collapse
They were probably trying to get into the Activation Menu in ESPT. If they could not get it to work, that would be a clue that the phone was Rooted. But as mentioned in the post above. As a Rule of Thumb, never sell a phone Rooted. Also never take a phone into a Sprint store for any type of Tech work if it's Rooted. They can and most times do Flag the account. Not what you want. After that any phone issues you run into they may try to claim it's because your device is rooted.
Thanks I put it back to stock.
I didn't realize a rooted phone would not allow you to get into the "Activation Menu in ESPT"
You can get more money some times for rooted phones, but i guess not with Sprint. My bro sold a SGSII rooted for T-mobile for big bucks, but i guess with sim cards, it makes it easy.
Is the "Rule of Thumb" to return phones back to stock before selling for Sprint and Verizon phones only?
I'm sorry, I didn't properly explain. Rooting doesn't affect if you can get into ESPT or not. Rooted phones can still use ESPT without issue. But it does depend on the Rom on the phone. But yes as a " Rule of Thumb " , if the device is going to be Sold or taken in for service. No matter who the person, or carrier is it's always better if it's Unrooted.
TEAM MiK
MikROMs Since 3/13/11
saw429 said:
Thanks I put it back to stock.
I didn't realize a rooted phone would not allow you to get into the "Activation Menu in ESPT"
You can get more money some times for rooted phones, but i guess not with Sprint. My bro sold a SGSII rooted for T-mobile for big bucks, but i guess with sim cards, it makes it easy.
Is the "Rule of Thumb" to return phones back to stock before selling for Sprint and Verizon phones only?
Click to expand...
Click to collapse
Yup when i sold my epic a few months back that was a huge issue trying to get it activiated if rooted, i always take it to a third part store like spring wireless it's possible to activate mine did eventually but took like a hour in half.. but verizon all you do is put a sim in activate and done...
Bfitz26 said:
Yup when i sold my epic a few months back that was a huge issue trying to get it activiated if rooted, i always take it to a third part store like spring wireless it's possible to activate mine did eventually but took like a hour in half.. but verizon all you do is put a sim in activate and done...
Click to expand...
Click to collapse
Not to be rude but Verizon uses CDMA (like Sprint excluding Nextel products that use iDEN). Verizon phones domestically do not use sim cards. The only CDMA phones that use sim cards are dual mode international phones (the sim card is only used for GSM networks abroad). AT&T and T-mobile use sim cards domestically (GSM) so maybe one of those?
Sent from my PG06100 using xda premium
Dread 7us said:
Not to be rude but Verizon uses CDMA (like Sprint excluding Nextel products that use iDEN). Verizon phones domestically do not use sim cards. The only CDMA phones that use sim cards are dual mode international phones (the sim card is only used for GSM networks abroad). AT&T and T-mobile use sim cards domestically (GSM) so maybe one of those?
Sent from my PG06100 using xda premium
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Click to collapse
Thats not entirely true. LTE uses sim cards. Any Verizon phones with 4G will have a sim card.
nullstring2 said:
Thats not entirely true. LTE uses sim cards. Any Verizon phones with 4G will have a sim card.
Click to expand...
Click to collapse
A sim card that is ONLY used to connect to 4G, not 3G (CDMA)...
Sent from my PG06100
drob311 said:
A sim card that is ONLY used to connect to 4G, not 3G (CDMA)...
Sent from my PG06100
Click to expand...
Click to collapse
Actually, from what I have read on the internet, Verizon LTE SIM cards are tied to activation of 3G CDMA on LTE equipped phones. I don't know how they did it, though. Also, I heard that Verizon LTE devices have the PRL loaded on the SIM card making it nearly impossible to flash a different PRL onto the phone. I even heard that Sprint is doing that with their LTE phones.

Inspire on Simple Mobile

Hey guys wondering if someone else is in the Pacific Northwest area that is on Simple Mobile with the Inspire. What I would like to know is there any better radios for the inspire that youve noticed any change in signal reception or anything than the stock radio.
Army_Spec_Ops said:
Hey guys wondering if someone else is in the Pacific Northwest area that is on Simple Mobile with the Inspire. What I would like to know is there any better radios for the inspire that youve noticed any change in signal reception or anything than the stock radio.
Click to expand...
Click to collapse
search around a bit. radio is subjective, two people with the same phone and same service in the same room will get different results with radios. best thing is try a few out and see if any are better for you.
Simple mobile uses tmobile bands therefore you only will get edge speeds, try the Att go phone sim from Walmart you'll get great speeds and maybe straight talk
Sent from my Inspire 4G using xda premium
The one issue with GoPhone is that if the SIM has been activated in a different phone, and less than 6 months have passed since it was activated, you will likely get an IMEI locked message. This doesn't mean there is any issue with the Inspire, simply that the GoPhone SIM is locked to the IMEI of the phone it was activated in.
I use red pocket mobile. In northern cali. Runs on ATT hspa plus. Not bad no issues. T mobile doesn't offer a 3g plan. Red pocket is 50-60. Might want to look into it.
Sent from my Desire HD using XDA
vwood2121 said:
Simple mobile uses tmobile bands therefore you only will get edge speeds, try the Att go phone sim from Walmart you'll get great speeds and maybe straight talk
Sent from my Inspire 4G using xda premium
Click to expand...
Click to collapse
From what I've heard straight talk is 45 a month and it unlimited
Sent from my Desire HD using xda app-developers app
bhigham said:
The one issue with GoPhone is that if the SIM has been activated in a different phone, and less than 6 months have passed since it was activated, you will likely get an IMEI locked message. This doesn't mean there is any issue with the Inspire, simply that the GoPhone SIM is locked to the IMEI of the phone it was activated in.
Click to expand...
Click to collapse
The six month policy is for unlocking the phone to other carriers. you have it backwards, my friend. If you call them and tell them that you are changing phones because the one it was activated on was damaged or non functional anymore, they will send a code to the phone to unlock the SIM. I think they can only do that for a SIM that is locked to an Android. If it was activated on a non-smart phone, you can go to any AT&T store and tell them you want to change phones and they will do it.
graydiggy said:
The six month policy is for unlocking the phone to other carriers. you have it backwards, my friend. If you call them and tell them that you are changing phones because the one it was activated on was damaged or non functional anymore, they will send a code to the phone to unlock the SIM. I think they can only do that for a SIM that is locked to an Android. If it was activated on a non-smart phone, you can go to any AT&T store and tell them you want to change phones and they will do it.
Click to expand...
Click to collapse
Not sure what you found to be incorrect in my statement. I never claimed the gophone sim couldn't be unlocked to be used in the inspire, just that it is locked by default to the phone that it is activated in. Also, though what you say is true about being able to get it changed, by default AT&T personnel don't seem to be able to diagnose the problem, when you give them the error message. A friend of mine had this issue when he tried to use a gophone sim in a nokia smartphone, and after going to the AT&T store, calling them up, etc, he asked me and I told him his SIM was probably locked to the phone it was activated in. Once he knew this, he called, and they unlocked it. However, neither the store nor customer service was able to help him, until he told them what the problem was. I also picked up the inspire I am using now for cheap, because the seller tried putting a gophone sim in it, and it came up with an "IMEI Locked" message. He assumed there was a problem with the phone, and AT&T customer service was unable to help him. Knowing the issue with GoPhone sims, I bought the phone, and have had no issues with it. So, though what you say is true, you have to know about the gophone simlock issue, in order to get it resolved.
Please post all questions in the Q & A section. Thanks! Thread moved.
Sent from my Galaxy Nexus using Tapatalk 2

Does the new JB update bring unlocked 3G GSM?

I've read that the update will bring new global roaming capability, so has anyone tried to stick a GSM SIM into the phone yet? Does the new JB update bring unlocked 3G GSM?
No, it does not. I updated to 4.1.1 bone stock and got it to register on T-Mobile's network, but there is no way to change APN's, so data and text/mm do not work.
Now, before the update you could root and get a program to add in the APN of whichever network you wanted... folks (including myself) have had it on AT&T and T-Mobile's GSM networks, albeit without WCDMA ("3g"). Check out http://forum.xda-developers.com/showthread.php?t=1895684 for progress on getting WCDMA working on the 1900 band. The phone works on the 2100 band out of the box, but no US carrier uses that for WCDMA.
Okay, that said, post-update, I am sure the same APN tricks that worked pre-update, will work now, but sadly one has to be rooted to do that. Attached are two screenshots from while I was farking about with it.
Why not root, then? No disadvantages that I can see
Sent from my SCH-I535 using Tapatalk 2
I like how they're legally supposed to have it unlocked but still, here we are a half a year later.
ac21365 said:
No, it does not. I updated to 4.1.1 bone stock and got it to register on T-Mobile's network, but there is no way to change APN's, so data and text/mm do not work.
Click to expand...
Click to collapse
To be honest, I'm amazed that VZW is allowing you to use another carrier's GSM SIM at all without some sort of unlock code (since this is the case with most phones sold in this country).
I assumed that their "Global Roaming" capability meant that you can take your SGS3 with the VZW SIM to countries (e.g. everywhere other than the USA) that only have GSM (WCDMA/HSDPA) and pay Verizon's extortion (roaming) fees. Maybe the lack of unlock is due to the fact that the phone's primary radios are LTE and CDMA?
If someone can confirm that rooting the phone will allow you to change the APNs it would be greatly appreciated. My family is vacationing in Costa Rica this winter. I've already acquired a couple of unlocked AT&T phones that we plan to use with local prepaid SIM cards, but it'd be nice to be able to have the option of using my I535 there as well.
Thanks!
gm2racer said:
If someone can confirm that rooting the phone will allow you to change the APNs it would be greatly appreciated. My family is vacationing in Costa Rica this winter. I've already acquired a couple of unlocked AT&T phones that we plan to use with local prepaid SIM cards, but it'd be nice to be able to have the option of using my I535 there as well.
Thanks!
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1809314
Yep, had it on T-Mobile and AT&T (GSM only) here in the states, and worked great on O2 (with HSPA+ YAY) in Germany. Page 6 for my screenshots of Domestic carriers, page 9 for screenshot of me on O2.
Please post questions in Q&A
Thread moved
Thanks
FNM
Imatoasta said:
I like how they're legally supposed to have it unlocked but still, here we are a half a year later.
Click to expand...
Click to collapse
Its not as cut and dry as that. If you have to root the phone to move carriers technically you are in the wrong. If that is what you mean by unlocked.
Dagger_Prime said:
Its not as cut and dry as that. If you have to root the phone to move carriers technically you are in the wrong. If that is what you mean by unlocked.
Click to expand...
Click to collapse
Actually you are wrong. He is referring to the FCC ruling. And we should not need to root to be unlocked. I think that is the point he was trying to make.
Does the inability to change APN affect only the domestic US carriers or is it true for any country's Sim card you put in for gsm use. (Verizon global phones have in the past operated where domestic sims don't work but international ones do)
systemf said:
Does the inability to change APN affect only the domestic US carriers or is it true for any country's Sim card you put in for gsm use. (Verizon global phones have in the past operated where domestic sims don't work but international ones do)
Click to expand...
Click to collapse
I recently updated to the leaked K3 while traveling on business in the Philippines. While voice and text work, there is no way to add any new APN settings in both GSM/UMTS and Global modes. When clicking on Menu in the APN settings, the only option is to restore to default.
Note that while voice and text do work, there is a notification i the notification menu stating "Non-Verizon SIM: Sorry, this SIM card is not supported. Please..."
I believe that the frequency the carrier runs on is GSM900. Hope that helps clarify things. I spent way too much time trying to get 3G to work over here to no success.
Has anyone just tried using Verizon's Global Data Plan ($25 for 100 MB)? Is the S3 somehow not compatible with that plan?
I'm looking at getting the VZW S3 but I've heard all kinds of things about getting the Verizon S3 to work globally pre/post JB update. I know the local sim rates are much cheaper, but for an occasional traveler this is supposed to be the easy solution.

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