Swapping motherboard on s3 - T-Mobile, Samsung Galaxy SIII

Okay so im gonna be getting a At&t Galaxy s3 and i wanna swap my tmobile motherboard with it because my tmobile s3 has a crack screen and will i be able to swap them with no problems and will i be able to get the same signal and data ? or are the antennas different ?

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Do I need to flash any modem/radio to my S3 to work properly with TMobil?

I posted this in the ATnT section but I think I should of posted it here. Long story short, I got a hold of a ATnT S3, had a cracked screen. I repaired the screen and finally got it unlocked and I am currently using it on T Mobil.
So I was wondering if I need to flash any modem/radio to get the best possible performance.I know I can get LTE (1900mhz) in my area, San Diego. Regular 4G which runs on 1700mhz I will not be able to get. Quite possible I will be running on EDGE. To which I ask, is it worth keeping the phone or should I turn it around and sell it?
Thank you all for your awesomeness!
I can not switch to ATNT because I am still under contract from TMobil

[Q] Swapping motherboard on s3

Okay so im gonna be getting a At&t Galaxy s3 and i wanna swap my tmobile motherboard with it because my tmobile s3 has a crack screen and will i be able to swap them with no problems and will i be able to get the same signal and data ? or are the antennas different ?
please reply
Can you please update what happened with your attempt
I somehow don't think you can. The T-Mo Device is missing the LTE Antenna whereas the ATT model does have one.
More importantly, why do you wish to swap ? You didn't mention any issues with the ATT version. Are there any ?

Flash Fixing a 4G sprint phone with different sprint 4G

Afternoon everyone. I have a question I was looking for some help or direction on. I have 2 phones on hand one is a Samsung Galaxy s3 sprint version and the other is a LG Viper 4G Lte sprint phone. I bought the galaxy with the thought I would use it on one of the sprint resellers that allows bring your own used sprint phones like Voyager. They can activate all old non active Sprint phones. I bought that galaxy as the esn was clean but had trouble getting it on and come to find out its a clean esn but the phones imei is listed as active to an account still meaning I can not turn it directly on untill the last owner gets a new phone on contract to kick that one out or until the fill contract length it was subsidized on is completed which is about a year away still. That sais the old sprint branded LG viper I have is completely clean and not active on an account. My question and thought for educational purposes is can I simply just swap the imei number from the good to goo viper to the galaxy 3 and then be good to go or is that imei alaos attached to the esn? In that case Is it possible to swap all the info from one phone to the other including the lte 4G and then just turn it on that way? The viper I checked with Voyager mobile and they can turn it on no issue on sprints network. I want to use the galaxy on Voyager which is sprint but I would like it to have full lte 4G working. The Viper is also Lte and could be the donor. What can I do as far as options like this since Im using 2 sprint lte phones and will keep these on sprints network...? Thanks for ideas in advance.
....
No ideas or thoughts on this?

AT&T Samung Galaxy Note 2 on T-Mobile help Please

Hello Everyone!
I got a AT&T Samsung galaxy note 2 on T-Mobile service using a T-Mobile sim card!
My note 2 has been rooted and I am running Jedi Master x2
I get 4g service in the big towns and in are small town were I live in spots my other T-Mobile phone
will get 4g service were my note 2 only gets E ( I take that as maybe 1g service? )
anyway it is way slow slower!
trying to think this problem out as a MFG's point of profit the inside of all lets say Samsung galaxy note 2 phones
are built all the same in hardware the difference comes down in software programing correct?
AT&T or T-Mobile or Sprint
So a question I would ask do I need to install the modem software from a T-Mobile note 2 onto my AT&T note 2
to get better 4g connection or is it the radio??
or is this a thing I have to live with till I by a branded T-Mobile phone
I would think this is all software related and not hardware am I wrong??
Bill
MerlinTT said:
Hello Everyone!
I got a AT&T Samsung galaxy note 2 on T-Mobile service using a T-Mobile sim card!
My note 2 has been rooted and I am running Jedi Master x2
I get 4g service in the big towns and in are small town were I live in spots my other T-Mobile phone
will get 4g service were my note 2 only gets E ( I take that as maybe 1g service? )
anyway it is way slow slower!
trying to think this problem out as a MFG's point of profit the inside of all lets say Samsung galaxy note 2 phones
are built all the same in hardware the difference comes down in software programing correct?
AT&T or T-Mobile or Sprint
So a question I would ask do I need to install the modem software from a T-Mobile note 2 onto my AT&T note 2
to get better 4g connection or is it the radio??
or is this a thing I have to live with till I by a branded T-Mobile phone
I would think this is all software related and not hardware am I wrong??
Bill
Click to expand...
Click to collapse
Do a search in the AT&T note 2 section for "AWS mod". Also, make sure you have the correct APN settings.
I have done the AWS mod and two different APN settings
I still get the same thing 4g on one t mobile phone and E edge on my note 2
may I ask does anyone know what would happen if I install the t mobile modem software
on a at&t note 2 ???
Baseband unknown meaning no service. I'd assume the note 2 just doesn't have as good an antenna or faulty? My ATT Note 2 with T-Mobile has LTE out of the box
I've swapped both ways at&t phone on tmo, tmo on at&t phone. Never had an issue so long as your sim card matches the service you want to use. Im using a tmo note 2 with an at&t sim right now without issue. Do Not Flash A Modem Not Built For Your Phone.
Sent from my SGH-T889 using Tapatalk
---------- Post added at 11:40 AM ---------- Previous post was at 11:36 AM ----------
Also make sure you APN settings are current. Tmo has changed their APN settings recently. I believe the new settings are named tmo fast.
Sent from my SGH-T889 using Tapatalk

AT&T Samusng S4 mini is it possible to make it work on Sprint

My husband fell in the pool with his new phone from sprint, I tried putting it in rice over night as a suggestion from a friend but I think he tried to power it up while it was still wet and might have fried something. I have his old phone from AT&T that I unlocked but then realized that AT&T and Sprint are not compatible networks. Is there a way to to make this phone run on the Sprint Network? Thanks.

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