[Q] Carrier Trade - Verizon Samsung Galaxy S III

I was wondering if you guys could help me understand something as I don't know much about cellular carriers. I currently own a Lumia 920 on att and was looking to trade it for a galaxy s3. I found someone who will trade with me, but he is on Verizon and the phone is with Verizon. I applied on att for an unlock code so that he would be able to use it, but I'm not sure how the whole GSM vs cdma works. What would I have to do to make this swap work if that's even possible?
thanks in advance.

It is cdma vs gsm networks. The gs3 on Verizon can work on gsm networks but was not designed to be utilized solely on a gsm network. I would stick with s phone from your current provider
Sent from my SCH-I535 using xda premium

Related

What carriers can use?

I am currently using the phone as a pure wiiFi item. I will be coming out of contract with them and do not plain to get a nother contract. I know that att has a pay as you go for $.10/min with a $15 for 100mb. Belive it or noth that is enough for me for data as I normly only us the phone for about 20 min and 10-15 mb a mounth.
What I was woundering is if I unlock the phone are there other carriers I can go to with this phone so that I can compair? Thank for any help on this.
Yes, when you unlock you can choose any carrier of your choice
Big Dog Infuse I997 ICS CatyRom
Which country are you in? You basically need to check what bands the carrier you want to switch from uses. They need to match what your infuse can use otherwise it won't work.
The phone supports: UMTS 850/1900/2100 and GSM 850/900/1800/1900. I think T-mobile runs on a different band but I don't know for sure as I live in Canada. Here in Canada you can use this phone on Rogers (the carrier that sells it), Bell, Virgin, Fido but I don't think it will work on WIND. If memory serves me correctly it might not work on T-mo, Verizon or Sprint (because Sprint and Verizon are on CDMA). If you are in the US you might want advice from someone other than me though.
It works on t mobile because mine is unlocked and my daughter has used it with her T-Mobile sim
Sent from my DROIDX using xda premium
dman3285 said:
It works on t mobile because mine is unlocked and my daughter has used it with her T-Mobile sim
Sent from my DROIDX using xda premium
Click to expand...
Click to collapse
yeah but umts bands are incompatible so you still only get 2g.
Isn't it possible to band unlock the infuse, but it requires more than the typical efforts. wasn't some group offering to do it for $50 if you send your phone to them?
Straight Talk. Uses AT&T's networks. But you have to buy a phone off of them with a sim.
Sent from my SGH-I997
There are different types of carriers in America and there are many things scarier can,do to lock certain devices to the network. Tmobile and att are gsm carriers and have some compatibility But they use different bands. The talk works and edge works. No 3g.
Sprint and Verizon are cdma and are not compatible. However Verizon,has phones that are both gsm and cdma and can,work on att. Nextel has Sim cards but are iden. Boost is also half cdma and half iden. And begin is basically sprint.
Then there are the no contract deals like strait talk. Problem is the Sim may be locked to the phone and even if you know the phone has a Sim and is working off atts network it may not work. The strait talk thing is only known to work if you buy a $200 Nokia smartphone and many of those have Tmobile Sims that are locked to the phone. I'm not sure how to tell the tmo version from the att version without looking at the Sim itself. Strait talk seems to just buy rights to use other networks, I've seen phones at Walmart with gsm on the box and others with cdma on the box. I think they use all the major networks depending on the phone.
I also saw an ad for simple mobile. Seems promising but appears to be Tmobile
So no 3g.
In Canada almost all carriers are 100% compatible with att phones. All but one but I forgot the name. So if you're Canadian you have options.
Do not know if you know about this- New T-Mobile Monthly4G $30 Unlimited Web & Text with 100 min of talk
email delivery or purchase monthly cards at Super Walmart.
Can not post link but go to Walmart dot com and search for the card I listed above.. sorry
Consumer Cellular is an AT&T reseller - in fact AT&T phones treat their SIMs as an AT&T SIM, don't even need to unlock.
Sent from my GT-P7510 using Tapatalk
Entropy512 said:
Consumer Cellular is an AT&T reseller - in fact AT&T phones treat their SIMs as an AT&T SIM, don't even need to unlock.
Sent from my GT-P7510 using Tapatalk
Click to expand...
Click to collapse
Thanks, good to know. Might have to look into a consumer cellular Sim and an i777. I wonder if it will work with lte in the future (the Sim that is. not the phone) but I can,worry about that when my area gets lte and the next generation,phone comes out.

[Q] Is GSM beating CDMA?

So I am currently with verizon (CDMA) and I was interested in checking out what the GSM Galaxy Nexus offered vs the CDMA version and to see if it had fewer problems.
That got me to thinking. Are phone makers and rom devs leaning toward GSM network phones? I know they can be used on att, tmobile and sprint but I don't really know if it is any better or worse.
I also figured out that the way cdma phones treat their software is a little different from gsm.
I know GSM iPhone is faster than CDMA iPhone
Sent from my SAMSUNG-SGH-I717 using XDA
The thing that got me thinking about it all was like I said, google released an unlocked gsm version. I know it doesn't quite work the same with cdma networks but if google is willing to throw one out there, maybe they want to start something with all this.
Everything seems to be gsm, idk what's happening to cdma
Sent from my HTC_A510c using XDA

Sim unlock galaxy s3 on verizon? :(

Can someone please help me with me new galaxy 3s? I just bought it from USA and i want to use it on Greece but it is locked on verizon.... What should i do?
That's an 800MHz/1900MHz CDMA phone. If Greece is like the rest of Europe and uses GSM, the phone doesn't have the radios to work there, so you can't use it. (The SIM is for data, not voice, but you need the basic connection to the network for it to work, and a CDMA phone won't connect to a GSM network.)
You should sell the phone to someone in the US (who wants a Verizon phone - it can't be "unlocked" for other carriers) and buy the GSM version of the phone.
Rukbat said:
That's an 800MHz/1900MHz CDMA phone. If Greece is like the rest of Europe and uses GSM, the phone doesn't have the radios to work there, so you can't use it. (The SIM is for data, not voice, but you need the basic connection to the network for it to work, and a CDMA phone won't connect to a GSM network.)
You should sell the phone to someone in the US (who wants a Verizon phone - it can't be "unlocked" for other carriers) and buy the GSM version of the phone.
Click to expand...
Click to collapse
New Verizon phones have worldwide roaming ability (including the S3) so it should work on any GSM carrier outside the US.
Sent from my DROID2 using xda premium
gagdude said:
New Verizon phones have worldwide roaming ability (including the S3) so it should work on any GSM carrier outside the US.
Sent from my DROID2 using xda premium
Click to expand...
Click to collapse
It is a sch i535rwb 4g phone. How can i check if it has a worldwide roaming phone? Also what should i do so that i can use it in Greece?
You need the SGH T999 (The GSM variant of the SGSIII) The Verizon variant should NOT work in Greece on a Greek carrier.
ItzCrooK2UxD said:
You need the SGH T999 (The GSM variant of the SGSIII) The Verizon variant should NOT work in Greece on a Greek carrier.
Click to expand...
Click to collapse
Are you sure for that? If i am not wrong this is an US version too, whats the diference and i can use sgh t999 in Greece?
I used to think it was native but apparently not. You can still enable worldwide roaming though.
Here's the thread, you need to do some hackery
http://forum.xda-developers.com/showthread.php?t=1809314
Sent from my MB508 using xda premium
You can just root it and and flash the synergy mod rom and it will work on any carrier
Does it actually have a SIM card slot or just a built in one?
If you're looking to use it primarily in your area I'd look for a different phone - sell or trade this one. I've heard the GSM can be used but that it's pretty terrible and certainly not what you'd want for a primary phone.
Sent from my SGH-T999 using Tapatalk 2

Thunderbolt to New Cricket 4G LTE

There's is now 4G coverage in the Houston area.My thunderbolt is already fully flash 3G and stable. Want to enable 4G on this phone. Cricket says requires sim card to work. The only sim cards are with the new LG and Samsung S3 by cricket. I know this is possible by using a unlocked 4G cdma LTE phone with sim slot. Does anyone have a unlocked phone on 4G cricket successfully working!!!
willowtree001 said:
There's is now 4G coverage in the Houston area.My thunderbolt is already fully flash 3G and stable. Want to enable 4G on this phone. Cricket says requires sim card to work. The only sim cards are with the new LG and Samsung S3 by cricket. I know this is possible by using a unlocked 4G cdma LTE phone with sim slot. Does anyone have a unlocked phone on 4G cricket successfully working!!!
Click to expand...
Click to collapse
This is in the wrong thread. Verizon 4g will only work with Verizon. Verizon owns the entire 700mhz band that 4g functions off. This makes it so no other network can use Verizon's 4g
Sent from my ThunderBolt using Tapatalk 2
disconnecktie said:
This is in the wrong thread. Verizon 4g will only work with Verizon. Verizon owns the entire 700mhz band that 4g functions off. This makes it so no other network can use Verizon's 4g
Sent from my ThunderBolt using Tapatalk 2
Click to expand...
Click to collapse
I dont think this is true as verizon can still lease their spectrum to other carriers like Straight Talk to piggy back off their network. The biggest problem for him is going to get a non-approved 4g device on verizons network. Verizon does not want people taking flagship devices to other discount carriers. Networks like Cricket dont actually own any spectrum, they just lease it from the bigger carriers at a discount. But verizon only allows a select group of ESN's to connect to it, usually for crappier phones. Some people will go so far as to clone their ESN to get it to work, but that requires special tools developed for your phone and can be quite tricky.
RunNgun42 said:
I dont think this is true as verizon can still lease their spectrum to other carriers like Straight Talk to piggy back off their network. The biggest problem for him is going to get a non-approved 4g device on verizons network. Verizon does not want people taking flagship devices to other discount carriers. Networks like Cricket dont actually own any spectrum, they just lease it from the bigger carriers at a discount. But verizon only allows a select group of ESN's to connect to it, usually for crappier phones. Some people will go so far as to clone their ESN to get it to work, but that requires special tools developed for your phone and can be quite tricky.
Click to expand...
Click to collapse
Well its pretty obvious that Verizon isn't leasing any part of their lte spectrum since there isn't one single optional carrier that a Verizon 4g phone will work with.
Sent from my ThunderBolt using Tapatalk 2
Is it possible to unlock all GSM bands to but used with Cricket 4G LTE service?
A possible NV Edit is probably all that is required
If I installed any other Sim Card Tmobile for example you get sim card unknown error and no signal
This is being done on other Verizon 4G LTE phones where people doing NV SEEM edits and unlocking all GSM bands. Using with prepaid carriers like Simple Mobile
willowtree001 said:
Is it possible to unlock all GSM bands to but used with Cricket 4G LTE service?
A possible NV Edit is probably all that is required
If I installed any other Sim Card Tmobile for example you get sim card unknown error and no signal
This is being done on other Verizon 4G LTE phones where people doing NV SEEM edits and unlocking all GSM bands. Using with prepaid carriers like Simple Mobile
Click to expand...
Click to collapse
So far no one has managed to do this on the thunderbolt. Its not like other 4g phones and is the only one with svdo enabled.
Sent from my ADR6400L using Tapatalk 2
willowtree001 said:
Is it possible to unlock all GSM bands to but used with Cricket 4G LTE service?
A possible NV Edit is probably all that is required
If I installed any other Sim Card Tmobile for example you get sim card unknown error and no signal
This is being done on other Verizon 4G LTE phones where people doing NV SEEM edits and unlocking all GSM bands. Using with prepaid carriers like Simple Mobile
Click to expand...
Click to collapse
Can the bands the radio receives be changed by software? Isn't the radio physically limited to a range of frequencies?
Sent from my ThunderBolt using Tapatalk 2
I was pretty sure that the radio was locked in to stay at the 700mhz spectrum that Verizon owns. I wouldn't be the least but surprised if it were locked in using hardware as well.
Sent from my ADR6400L using Tapatalk 2
If memory serves, Cricket's LTE is courtesy of Verizon, I read it I think on Engadget a while back... Either way, it goes along with Verizon's Rural Coverage Plan to work with regional carriers to bring LTE to places where people would never expect it.
T-Mo works with AT&T phones because both are 1800Mhz or whatever for EDGE, so I would think if Sprint LTE is 700Mhz....
Sent from my Galaxy Nexus using xda app-developers app
jimmyco2008 said:
If memory serves, Cricket's LTE is courtesy of Verizon, I read it I think on Engadget a while back... Either way, it goes along with Verizon's Rural Coverage Plan to work with regional carriers to bring LTE to places where people would never expect it.
T-Mo works with AT&T phones because both are 1800Mhz or whatever for EDGE, so I would think if Sprint LTE is 700Mhz....
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
Verizon owns the upper c block of the 700mhz spectrum. Read this.
http://www.phonescoop.com/articles/article.php?a=187&p=230
Sent from my ADR6400L using Tapatalk 2
jimmyco2008 said:
If memory serves, Cricket's LTE is courtesy of Verizon, I read it I think on Engadget a while back... Either way, it goes along with Verizon's Rural Coverage Plan to work with regional carriers to bring LTE to places where people would never expect it.
T-Mo works with AT&T phones because both are 1800Mhz or whatever for EDGE, so I would think if Sprint LTE is 700Mhz....
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
I doubt Sprint is using 700 they are probably using spectrum they got from the nextel acquisition (not looking stupid now lol). And of Sprint was using 700 and the had an lte roaming agreement, which they don't, with Verizon..... sprint lte phones would be working in allot more places, which they aren't.
Sent from my ThunderBolt using Tapatalk 2
---------- Post added at 09:46 PM ---------- Previous post was at 09:31 PM ----------
http://m.networkworld.com/news/2012/012312-lte-spectrum-255122.html?page=2
If the info from the above article is correct you can see Sprint lte is not compatible with Verizon or ATT. In my searching I also found that apple made 3 different variants of the iPhone 5 with different lte frequency combinations.
http://www.wired.com/gadgetlab/2012/09/iphone5-lte-model/
Sent from my ThunderBolt using Tapatalk 2
willowtree001 said:
Is it possible to unlock all GSM bands to but used with Cricket 4G LTE service?
A possible NV Edit is probably all that is required
If I installed any other Sim Card Tmobile for example you get sim card unknown error and no signal
This is being done on other Verizon 4G LTE phones where people doing NV SEEM edits and unlocking all GSM bands. Using with prepaid carriers like Simple Mobile
Click to expand...
Click to collapse
those other Verizon 4g Lte phones, like the moto Bionic, have radios and antenna that support those GSM frequencies, and the engineering software tools to perform those tasks have been leaked.
Afaik, but I haven't looked in a while, after making those seem edits it unlocks Gsm/Edge for Att, T-Mobile and global roaming. I think it also enables hspa for Att but not T-Mobile due to frequencies the bionic's radio supports or doesn't support. It does not enable Lte for any other carrier.
its my understanding that the radio chips and antennas in the TB only support Cdma/Evdo and VZW's upper 700mhz block LTE
It also doesnt help that ril for the thunderbolt is closed source because of the svdo capabilities in it.
Sent from my ThunderBolt using Tapatalk 2
Anyone try getting/buying a sim card from cricket?
You would need a SIM for the phone to work at all, right, since it is needed for 3G and 1X on Verizon?
Sent from my Galaxy Nexus using xda app-developers app
jimmyco2008 said:
You would need a SIM for the phone to work at all, right, since it is needed for 3G and 1X on Verizon?
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
The sim would be needed for 4g to work. Cricket will provide you with a sim but you will still only get 3g because they can't get Verizon's 4g signal.
Sent from my ADR6400L using Tapatalk 2
But my phone doesn't work at all without a SIM, is it different for cricket?
Sent from my Galaxy Nexus using xda app-developers app
I think to use the phone with cricket you will have to have the sim but still won't be able to use 4g.
Sent from my ADR6400L using Tapatalk 2
Quick Question
"There's is now 4G coverage in the Houston area.My thunderbolt is already fully flash 3G and stable. Want to enable 4G on this phone. Cricket says requires sim card to work. The only sim cards are with the new LG and Samsung S3 by cricket. I know this is possible by using a unlocked 4G cdma LTE phone with sim slot. Does anyone have a unlocked phone on 4G cricket successfully working!!!"
If you don't mind, I was hoping you might be able to tell me how you flashed your thunderbolt to Cricket. I have tried many times unsuccessfully, and to be honest I'm absolutely stuck. I'd appreciate any and all help I can find. Thank you so much Have a wonderful day!
,
Dave

[Q] How to Switch to Verzion with T-Mobile's myTouch 4G Slide

Hi guys I have a question hopefully someone can help me with. I have the myTouch 4G Slide from T-Mobile but I want to use it on Verizons network. I know how to root and unlock the boot-loader but are there any other steps I need to take before this is functional? Any help would be greatly appreciated.
Version uses sim cards right? If so just search the threads here on how to sim unlock your phone, I believe I read one or two here before. You can also have it unlocked by tmo if your on contract with them or you can buy sim unlock codes
Sent from my Nexus 7 using xda premium
Verizon uses CDMA. The MT4GS is a GSM phone, so there is no way to use it on Verizon's service. It doesn't have a radio that is compatible with Verizon's towers.
HappyKhicken said:
Verizon uses CDMA. The MT4GS is a GSM phone, so there is no way to use it on Verizon's service. It doesn't have a radio that is compatible with Verizon's towers.
Click to expand...
Click to collapse
Exactly! There is absolutely no way to get this phone, or any GSM phone that I know of, to work on Verizon's system. Even T-Mobile's new LTE service is different than the LTE from Verizon (not that this phone can work on either of those, either).
Haha, couldn't remember myself, hence the foggy reply! CDMA is such a pain, makes me wonder why anyone uses a carrier with it, I mean unless you never travel or want your phone to only ever work with one carrier....
Sent from my Nexus 7 using xda premium
demkantor said:
Haha, couldn't remember myself, hence the foggy reply! CDMA is such a pain, makes me wonder why anyone uses a carrier with it, I mean unless you never travel or want your phone to only ever work with one carrier....
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
There are a few Verizon and Sprint (both CDMA carriers) that have GSM backup. They market them as their "World Phones". The iPhone5 is one of them. If the phones have the GSM portion unlocked (Verizon automatically unlocks theirs, Sprint will unlock on request after a certain amount of time), you can use a foreign SIM and the GSM radio of those phones. But, you have to be careful, the phones default to the CDMA and if you have roaming turned on, in some countries that could be a VERY expensive oversight with roaming charges.

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