Develop Bugs

[Q] ATT Version Usable with T-Mobile?

I am going to switch to T-Mobile in 2 months so was wondering if it will work with T-Mobile's HSPA + Network.

AFAIK It won't, but the frequenceies are listed on both carrier's sites so you can have a look at that.

No.
http://www.androidpolice.com/2011/0...nt-4g-hspa-phone-will-not-be-covered-by-both/

Couldn't we just flash the t-mobile radio like with the t-mobile sgs2 and the skyrocket from at&t?

It should be possible. Check out the specs of the two: http://www.gsmarena.com/compare.php3?idPhone1=4804&idPhone2=4803
This is EXACTLY the same as Tmobile S2 and ATT S2 LTE: http://www.gsmarena.com/compare.php3?idPhone1=4129&idPhone2=4303
Some awesome dev needs to do some radio hacking to make the two phones interchangeable as they did for the S2/S2 LTE.

pvc_ said:
No.
http://www.androidpolice.com/2011/0...nt-4g-hspa-phone-will-not-be-covered-by-both/
Click to expand...
Click to collapse
that article is over a year old. there are many devices that work on both carriers via 4g. looking at the frequencies on att version it should work with a radio flash.

There's hope then

http://news.cnet.com/8301-1035_3-57460125-94/t-mobiles-pricier-samsung-galaxy-s3-will-not-get-lte/
same hardware in all US S3's so theoretically even a sprint or verizon one can be flashed if its just going to be software limitations

tspx23 said:
http://news.cnet.com/8301-1035_3-57460125-94/t-mobiles-pricier-samsung-galaxy-s3-will-not-get-lte/
same hardware in all US S3's so theoretically even a sprint or verizon one can be flashed if its just going to be software limitations
Click to expand...
Click to collapse
The CDMA and TDMA versions are different and not compatible. A sprint or Verizon model will not work on GSM networks due to the different protocols used. AFAIK no phone is universally portable amongst US carriers.

Verizon/Sprint/US Cellular phones are 100% different in terms of radio hardware and software.
It is possible the T-Mobile/AT&T ones will likely work together, but why? Also something to consider is the AT&T Note on T-Mobile gets HORRIBLE battery life.

malaeum said:
The CDMA and TDMA versions are different and not compatible. A sprint or Verizon model will not work on GSM networks due to the different protocols used. AFAIK no phone is universally portable amongst US carriers.
Click to expand...
Click to collapse
You sure about this? Verizon model will have a sim card and has GSM support. Verizon will probably block T-Mobile and ATT with all of their GSM/devices.

tspx23 said:
You sure about this? Verizon model will have a sim card and has GSM support. Verizon will probably block T-Mobile and ATT with all of their GSM/devices.
Click to expand...
Click to collapse
The SIM card is for LTE. The only way to get 3G on a CDMA device would be through CDMA.

joshnichols189 said:
The SIM card is for LTE. The only way to get 3G on a CDMA device would be through CDMA.
Click to expand...
Click to collapse
Not exactly true... After a "hack" to my VZW Moto Bionic and dropping in an ATT sim from a demo Galaxy Note, we got working H+ on the Bionic.
Even after hack, the Bionic doesn't appear to support T-Mobile's 1700mhz so I get EDGE only when I use the T-Mo SIM out of my Galaxy S2.
But I wont have a Verizon Galaxy S3 to play with to see how that works.

KidJoe said:
Not exactly true... After a "hack" to my VZW Moto Bionic and dropping in an ATT sim from a demo Galaxy Note, we got working H+ on the Bionic.
Even after hack, the Bionic doesn't appear to support T-Mobile's 1700mhz so I get EDGE only when I use the T-Mo SIM out of my Galaxy S2.
But I wont have a Verizon Galaxy S3 to play with to see how that works.
Click to expand...
Click to collapse
Interesting, have not heard of that one but I will take your word for it. Either way, most phones do not have AWS bands for T-Mobile unless they are T-Mobile phones.

Assuming the Verizon version has GSM 3G radios in it (what they call a "Global" phone) I don't see why even it could be flashed if someone could get the radio hacked.
For example, my current phone, the Droid 2 Global, normally runs on Verizon's CMDA bands. Being a global phone, it has GSM radios in it which can be activated if you get an unlock code from Verizon (not difficult).
Here's the catch- the baseband locks the phone so that it does not work on AT&T and T-Mobile's frequency bands! However, some clever hackers at TeamBlackHat were able to hack the baseband to allow it to work on US carriers as well.
tl;dr if the CDMA versions have GSM radios it should be feasible to make them work on AT&T and T-Mobile.

ExodusC said:
Assuming the Verizon version has GSM 3G radios in it (what they call a "Global" phone) I don't see why even it could be flashed if someone could get the radio hacked.
For example, my current phone, the Droid 2 Global, normally runs on Verizon's CMDA bands. Being a global phone, it has GSM radios in it which can be activated if you get an unlock code from Verizon (not difficult).
Here's the catch- the baseband locks the phone so that it does not work on AT&T and T-Mobile's frequency bands! However, some clever hackers at TeamBlackHat were able to hack the baseband to allow it to work on US carriers as well.
tl;dr if the CDMA versions have GSM radios it should be feasible to make them work on AT&T and T-Mobile.
Click to expand...
Click to collapse
So basically, all world phones can literally be made into world phones? Nice!

SaHiLzZ said:
It should be possible. Check out the specs of the two: gsmarena /compare.php3?idPhone1=4804&idPhone2=4803
This is EXACTLY the same as Tmobile S2 and ATT S2 LTE: gsmarena /compare.php3?idPhone1=4129&idPhone2=4303
Some awesome dev needs to do some radio hacking to make the two phones interchangeable as they did for the S2/S2 LTE.
Click to expand...
Click to collapse
You raise a really good point.
joshnichols189 said:
Verizon/Sprint/US Cellular phones are 100% different in terms of radio hardware and software.
It is possible the T-Mobile/AT&T ones will likely work together, but why? Also something to consider is the AT&T Note on T-Mobile gets HORRIBLE battery life.
Click to expand...
Click to collapse
Does the S2 and S2 LTE (skyrocket) succumb to bad battery life like the note does when their networks are interchanged?

[Q] Are There Different S3 versions for ATT and TMobile?

I found out quite late that Tmobile is limited to 2G data on IPhones.. (or atleast IPhone 4S). I use TMobile prepaid 3$/day package as my usage is limited and sporadic.
Considering the S3, can anyone please tell me if Samsung has released distinct versions of the S3 for the two networks, or the same model covers both?.
Thanks.

I believe att has the lte version. Yes different phones.
Sent from my SGH-T999 using xda premium

Thanks Mr?Bmg
I suppose, the question I really wanted to ask was, is one network's version more of an international phone than the other with regards to data?... i.e if I were to take the phone to a)UK/Europe, b) Pakistan,
Would both phone be able to get atleast 3G, or, would the TMobile version still be restricted to EDGE?.
Thanks.
Riz

RizSher said:
Thanks Mr?Bmg
I suppose, the question I really wanted to ask was, is one network's version more of an international phone than the other with regards to data?... i.e if I were to take the phone to a)UK/Europe, b) Pakistan,
Would both phone be able to get atleast 3G, or, would the TMobile version still be restricted to EDGE?.
Thanks.
Riz
Click to expand...
Click to collapse
There are different versions of the S3 for both the ATT and TMobile. On the S2, the difference was in the apearance, where the ATT was a little more square like, and TMobile had rounded edges. In the S3 though, the only difference is the name printed on the back (where it has either the Tmobile or the ATT logo). As for the mobile network support, I think that only the radio is different. Even now, you are not limited to 2g by your phone, but rather whatever TMobile decided to give you. Both phones will get atleast 3g. I know that TMobile version does not have LTE support, but im not sure about the ATT version.

RizSher said:
Thanks Mr?Bmg
I suppose, the question I really wanted to ask was, is one network's version more of an international phone than the other with regards to data?... i.e if I were to take the phone to a)UK/Europe, b) Pakistan,
Would both phone be able to get atleast 3G, or, would the TMobile version still be restricted to EDGE?.
Thanks.
Riz
Click to expand...
Click to collapse
If you bring an AT&T phone to T-Mobile, you will not get 4G.
You can best 3G if your AT&T Phone has the 1900 range, you can get 3G on T-Mobile's service. Not sure how well it will be since it's only picking 1900 without others.

If you unlock your T-Mobile S3 you should be able to get 3G/HSPA+ on AT&T. The T-Mobile S3 is a pentaband device.

RizSher said:
I found out quite late that Tmobile is limited to 2G data on IPhones.. (or atleast IPhone 4S). I use TMobile prepaid 3$/day package as my usage is limited and sporadic.
Considering the S3, can anyone please tell me if Samsung has released distinct versions of the S3 for the two networks, or the same model covers both?.
Thanks.
Click to expand...
Click to collapse
If you are using an iPhone you might as well do the $2 a day since the $3 will only affect you if your phone gets 4G. They will be exactly the same performance on the $2 since it will just be on unlimited EDGE.

rmanne said:
There are different versions of the S3 for both the ATT and TMobile. On the S2, the difference was in the apearance, where the ATT was a little more square like, and TMobile had rounded edges. In the S3 though, the only difference is the name printed on the back (where it has either the Tmobile or the ATT logo). As for the mobile network support, I think that only the radio is different. Even now, you are not limited to 2g by your phone, but rather whatever TMobile decided to give you. Both phones will get atleast 3g. I know that TMobile version does not have LTE support, but im not sure about the ATT version.
Click to expand...
Click to collapse
The AT&T version does not get 3G on T-Mobile save for a few sporadic locations across the states. And yes, it also has LTE.

joshnichols189 said:
The AT&T version does not get 3G on T-Mobile save for a few sporadic locations across the states. And yes, it also has LTE.
Click to expand...
Click to collapse
I also want to know about this

suhailstar said:
I also want to know about this
Click to expand...
Click to collapse
Know about what?
Sent from my SGH-T999

[Q] How to get a verizon sim to work on a at&t samsung galaxy s3

How to get a verizon sim card to work on a at&t samsung Galaxy s3.
Can I make ATT Samsung Galaxy S3 work on a verizon sim card?
The phone is rooted and unlocked.
SAMSUNG-SGH-I747
Android version 4.1.2
Baseband version 1747ucdmg2
build # Supreme Deadly Venom v7.1.0

getyasome said:
How to get a verizon sim card to work on a at&t samsung Galaxy s3.
Can I make ATT Samsung Galaxy S3 work on a verizon sim card?
The phone is rooted and unlocked.
SAMSUNG-SGH-I747
Android version 4.1.2
Baseband version 1747ucdmg2
build # Supreme Deadly Venom v7.1.0
Click to expand...
Click to collapse
Unfortunately, can't be done as Verizon uses CDMA and ATT uses GSM. Means radios are completely different.

getyasome said:
How to get a verizon sim card to work on a at&t samsung Galaxy s3.
Can I make ATT Samsung Galaxy S3 work on a verizon sim card?
The phone is rooted and unlocked.
SAMSUNG-SGH-I747
Android version 4.1.2
Baseband version 1747ucdmg2
build # Supreme Deadly Venom v7.1.0
Click to expand...
Click to collapse
impossible until the carriers and technology says so, sorry CDMA+GSM dont mix unless they say so

getyasome said:
How to get a verizon sim card to work on a at&t samsung Galaxy s3.
Can I make ATT Samsung Galaxy S3 work on a verizon sim card?
The phone is rooted and unlocked.
SAMSUNG-SGH-I747
Android version 4.1.2
Baseband version 1747ucdmg2
build # Supreme Deadly Venom v7.1.0
Click to expand...
Click to collapse
What all have u tried so far? I have a friend with a verizon droid dna running a straight talk (at&t) sim, and everything works, calls, text, mms, and internet...

DMF1977 said:
What all have u tried so far? I have a friend with a verizon droid dna running a straight talk (at&t) sim, and everything works, calls, text, mms, and internet...
Click to expand...
Click to collapse
As stated above, Verizon and att use two entirely different networks. The radio hardware is different. Unless the droid dna is a gsm phone that should not be possible.
Sent from my Galaxy Nexus using xda app-developers app

Greycloak42 said:
As stated above, Verizon and att use two entirely different networks. The radio hardware is different. Unless the droid dna is a gsm phone that should not be possible.
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
I'm fully aware that they are entirely different networks, but it works. Yes, the verizon dna is cdma, but it also takes a sim card, im assuming because of the 4g lte...

DMF1977 said:
I'm fully aware that they are entirely different networks, but it works. Yes, the verizon dna is cdma, but it also takes a sim card, im assuming because of the 4g lte...
Click to expand...
Click to collapse
That phone is also GSM capable. At that point it's all a matter of the APN settings. It can not be done with the S3 on any carrier (swapping from CDMA to GSM)

getyasome said:
How to get a verizon sim card to work on a at&t samsung Galaxy s3.
Can I make ATT Samsung Galaxy S3 work on a verizon sim card?
The phone is rooted and unlocked.
SAMSUNG-SGH-I747
Android version 4.1.2
Baseband version 1747ucdmg2
build # Supreme Deadly Venom v7.1.0
Click to expand...
Click to collapse
I think you can get the Verizon S3 to work on AT&T (calls/text/edge data). I know you can do that on T-Mobile. But you won't be able to get the AT&T S3 to work on Verizon for two reasons;
1) The radio would need to be hacked to enable the CDMA radio, and the information needed to hack the radio is not available. The US variants all received the same radio chip, just some of the frequencies are turned off. For instance, the AT&T S3 wasn't able to get the t-mobile AWS band working until the guy working for t-mobile released some radio files. The AT&T/T-Mo S3s have the CDMA radio, but it's not enabled
2) Verizon won't allow the phone on the network, as the IMEI is not registered on their network. This is probably the most important reason. You would need to spoof the IMEI from another verizon phone, which is not something that can be discussed here.
You are better off switching with someone who has a Verizon S3, that wants an AT&T S3.

tokuzumi said:
I think you can get the Verizon S3 to work on AT&T (calls/text/edge data). I know you can do that on T-Mobile. But you won't be able to get the AT&T S3 to work on Verizon for two reasons;
1) The radio would need to be hacked to enable the CDMA radio, and the information needed to hack the radio is not available. The US variants all received the same radio chip, just some of the frequencies are turned off. For instance, the AT&T S3 wasn't able to get the t-mobile AWS band working until the guy working for t-mobile released some radio files. The AT&T/T-Mo S3s have the CDMA radio, but it's not enabled
2) Verizon won't allow the phone on the network, as the IMEI is not registered on their network. This is probably the most important reason. You would need to spoof the IMEI from another verizon phone, which is not something that can be discussed here.
You are better off switching with someone who has a Verizon S3, that wants an AT&T S3.
Click to expand...
Click to collapse
It will work with T-Mobile because it's a GSM network. The radio can't be hacked. It's a limitation of the hardware itself. It's 2 completely different pieces of hardware.

The sim card on Verizon phones is ONLY used to access Verizon's LTE, without that simcard you'd have regular 4G only on a Verizon phone. That sim card/or phones acts in no way possible as GSM accessible.
So no it will NEVER work regardless of what you do.
And don't fall for ads on the internet about any Verizon,Sprint, or any CDMA phone to work on GSM networks.

jayRokk said:
The sim card on Verizon phones is ONLY used to access Verizon's LTE, without that simcard you'd have regular 4G only on a Verizon phone. That sim card/or phones acts in no way possible as GSM accessible.
So no it will NEVER work regardless of what you do.
And don't fall for ads on the internet about any Verizon,Sprint, or any CDMA phone to work on GSM networks.
Click to expand...
Click to collapse
This is not entirely true for all Verizon phones. The DNA, S4, Note 2, LG G2 (among others) are sim-unlocked out of the box, and will work with AT&T/T-Mobile (the note 2 requires some hacking in order to add the APN settings). Also, as I recall, if I took the sim card out of my GNex and DNA, I did not have service. It would only allow for emergency calls. No talk/text/2G/3G.
For the Galaxy Nexus, the phone is 100% guaranteed to not work on any GSM network.

tokuzumi said:
This is not entirely true for all Verizon phones. The DNA, S4, Note 2, LG G2 (among others) are sim-unlocked out of the box, and will work with AT&T/T-Mobile (the note 2 requires some hacking in order to add the APN settings). Also, as I recall, if I took the sim card out of my GNex and DNA, I did not have service. It would only allow for emergency calls. No talk/text/2G/3G.
For the Galaxy Nexus, the phone is 100% guaranteed to not work on any GSM network.
Click to expand...
Click to collapse
Read the first sentence
"Only to get Verizon's LTE"
Unlocked phones work "globally"
Which means you'd get Voice and EDGE/3G at the most from other GSM networks, given you've provided the correct APNs. Locked phones, which carry that sim card for Verizon's LTE ONLY. Either way only a few phones will work. The rest are useless.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

Agent said:
It will work with T-Mobile because it's a GSM network. The radio can't be hacked. It's a limitation of the hardware itself. It's 2 completely different pieces of hardware.
Click to expand...
Click to collapse
No. They use the same hardware. Msm8960. It should support GSM CDMA WCDMA LTE and Td-scdma. Almost all the network. It's mostly because of the lock of the radio/nv.

Remember, the op is asking if he can use an at&t galaxy s3 on Verizon. It's not going to work.

IT WORKS
tokuzumi said:
I think you can get the Verizon S3 to work on AT&T (calls/text/edge data). I know you can do that on T-Mobile. But you won't be able to get the AT&T S3 to work on Verizon for two reasons;
1) The radio would need to be hacked to enable the CDMA radio, and the information needed to hack the radio is not available. The US variants all received the same radio chip, just some of the frequencies are turned off. For instance, the AT&T S3 wasn't able to get the t-mobile AWS band working until the guy working for t-mobile released some radio files. The AT&T/T-Mo S3s have the CDMA radio, but it's not enabled
2) Verizon won't allow the phone on the network, as the IMEI is not registered on their network. This is probably the most important reason. You would need to spoof the IMEI from another verizon phone, which is not something that can be discussed here.
You are better off switching with someone who has a Verizon S3, that wants an AT&T S3.
Click to expand...
Click to collapse
i can verify that i an running AT&T straight talk service on my sch-i535 (Verizon Galaxy s3)

I have had success using a Verizon sg3 mother board on att's network although I was only able to get 2g. What I did was rooted phone, ran region unlock app, next I let the phone sit for a day, then a did a factory reset from the phones menu not custom recovery. Then when going through the set up wizard it prompted me to insert sim card then it said it was not an approved sim and gave options to continue or finish, selected finish, said complete and about 3-5 mins after booting up I got signal bars and phone was working. Although the hardware used are different these are dual band phones.
Never give up keep trying
Sent from my SAMSUNG-SGH-I747 using XDA Premium 4 mobile app

T-Mobile M8 patch 4 Verizon M8

Is there a patch to make my vzw M8 work like it was a native Tmo M8?

No. Hardware is different.
Verizon has CDMA chipset and the TMO verison is a GSM chipset.

IAmSixNine said:
No. Hardware is different.
Verizon has CDMA chipset and the TMO verison is a GSM chipset.
Click to expand...
Click to collapse
That's not true...
My phone is Fully unlocked and gets everything from Edge to Legit LTE.
My phone works. I just need it to work a bit better.

And the reason you want it to work better is because its not the correct version for the carrier you want it to work on.
http://www.gsmarena.com/compare.php3?idPhone1=6233&idPhone2=6074
The bands are almost identical with the Verizon unit missing 1700mhz on the HSDPA side.
Either way if you want it to work like its supposed to get the branded one. Unlocking will work but in most cases something is always missing.
could be specific software, or the way the device works with the network, or an entire band or what ever.
Bottom line is ditch the unlocked verizon and go with a branded tmobile unit.

ericerk said:
That's not true...
My phone is Fully unlocked and gets everything from Edge to Legit LTE.
My phone works. I just need it to work a bit better.
Click to expand...
Click to collapse
Since you seem to already know the answer then go ahead and flash a tmobile or any other gsm rom to your phone and see how fast you brick it.

IAmSixNine said:
And the reason you want it to work better is because its not the correct version for the carrier you want it to work on.
http://www.gsmarena.com/compare.php3?idPhone1=6233&idPhone2=6074
The bands are almost identical with the Verizon unit missing 1700mhz on the HSDPA side.
Either way if you want it to work like its supposed to get the branded one. Unlocking will work but in most cases something is always missing.
could be specific software, or the way the device works with the network, or an entire band or what ever.
Bottom line is ditch the unlocked verizon and go with a branded tmobile unit.
Click to expand...
Click to collapse
Now that makes sense.
What a bummer.

Using CyanogenMod M9 with Verizon M8 on Tmobile
I have found that this works pretty well for me. CyanogenMod 11 M9 (I cant link to it, forum wont allow me to)
I have not had any issues with that build using a Verizon M8 on the Tmobile network.

Developers Edition

So I was talking to a Samsung rep at a Best Buy and she told me they may release a Developers Edition of the Note 4. I Googled it and see confirmation that there will be a Developers edition and that it will be sold through Verizon but not subsidized to any carrier. It should be released mid-November and cost around $660.00 Full Price.
That being said, does anyone plan to get the Dev Edition in order to Root/ROM? I am still rocking my Galaxy S3 but may end up going with the Note 4 so long as it has full Root/ROM.

I already have a note 4 but i might...Is it going to be able to use AT&T's 4G LTE? or only H+?

It seems that it's going to be a Verizon exclusive and will stay that way... I guess that it could be unlocked but Verizon phones have no simcard right? So I assume it would never work with AT&T

lebertian said:
It seems that it's going to be a Verizon exclusive and will stay that way... I guess that it could be unlocked but Verizon phones have no simcard right? So I assume it would never work with AT&T
Click to expand...
Click to collapse
Verizon uses sim cards now too. They use it for their 4g. If a verizon phone is unlocked it can be used on AT&T but usually only with H+. I just didn't know if there was a different case with this one. Why is verizon getting all of the good phones? Droid turbo and now this?

I'll probably wait until it does release to see if its compatible with AT&T but I definitely require it to be LTE and not just H+. Hopefully it is a fully unlocked device with all of the bands needed to work with AT&T.

If that's true I might even sell mine to get it

It's for Verizon only. They use a different LTE it's CDMA based so will be no help for ATT users. If you want to get one for ATT you need to have everyone blowing up their twitter Facebook etc to get one released.
Sent from my GT-N7105 using XDA Free mobile app

ShrekOpher said:
It's for Verizon only. They use a different LTE it's CDMA based so will be no help for ATT users. If you want to get one for ATT you need to have everyone blowing up their twitter Facebook etc to get one released.
Sent from my GT-N7105 using XDA Free mobile app
Click to expand...
Click to collapse
Just maybe like verizon's previous iphones that worked on att and tmobile just fine. But still doesnt make sense a developer version just for verizon, we know most developers are on gsm, jk