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Samsung galaxy s3 can no use 4g

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betorra

Lurker
Hello i bought galaxy s3 but i can not use the 4g only 3g, the phone is strsighttalk, i call them they just told me to pull the battery with the phone on, its working with cdma i dont know if is posible to put a dim card, thanks
 
betorra said:
Hello i bought galaxy s3 but i can not use the 4g only 3g, the phone is strsighttalk, i call them they just told me to pull the battery with the phone on, its working with cdma i dont know if is posible to put a dim card, thanks
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Hi I am not completely sure I understand you, Are you saying you have bought a straight talk branded galaxy s3 but it only works on the cdma 3g, not on the LTE 4G?

First let me say If what I think you said is correct then the straight talk branded s3 runs on the sprint network, and so if the sprint network has 4G LTE in your area then you should be getting it on that phone.
But its possible that sprint does not have the 4g network running yet where you live.

So where do you live.
 
Yeap you are right its a sam gal s3 from straighttalk, i had a galaxy s2 and i can use 4g, same area, but in the s2 i use sim card, in the galqxy s3 is cdma and i can not have 4glte, a friend told me bucause i dont have a sim card, but i dont know if i can use a sim card if the phone is working in cdma
 
betorra said:
Yeap you are right its a sam gal s3 from straighttalk, i had a galaxy s2 and i can use 4g, same area, but in the s2 i use sim card, in the galqxy s3 is cdma and i can not have 4glte, a friend told me bucause i dont have a sim card, but i dont know if i can use a sim card if the phone is working in cdma
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betorra said:
Forgot to tell you they work with att network, boos mobile work with sprint
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Att is a GSM network, they use a sim card, for everything, talk/text/and web.
If your phone, the galaxy s3 is a cdma phone it uses cdma technology not GSM. they also would not run on the att network. CDMA phones do not need sim cards, though the LTE enabled ones usually use a sim like card, because lte is GSM based. However without the LTE card in it would still work on 3g, a gsm phone will not work at all without a sim card.
You need to verify if you have a cdma phone you can pull the back cover and you will see 2 slots above the battery, one is for microsd card and one is for sim card/lte card if the card is not there and you still get phone service its definitely cdma.

Oh and you can also go to settings/ about phone/status and it will tell you if its running evdo/umts/lte.
 
Also as I mentined in the first post, Straight Talk has galaxy s3 branded phones that run on the Sprint network. Straight talk actually sells network service for all 4 national carriers, they have Verizon/Sprint/T-Mobile/Att.

They have some phones that run on each of these networks and they do the byod program which typically run on either att or t mobile. but with some limits on the verizon and sprint networks too.
If your phone, which sounds like a sprint network phone, does not get 4g you can always sell it and get an att phone that does have lte, and put your straight talk att sim into it and have service.
 
What I think is happening is that your s2 was on att and they have 4g. Your s3 is cdma and uses sprints network and I am betting Sprint hasn't rolled out 4glte in your area yet.
 
Ok in the back of the phone are the 2 slots that you told me but not sim, what happened if i put a lte sim card
 
betorra said:
Ok in the back of the phone are the 2 slots that you told me but not sim, what happened if i put a lte sim card
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If the phone is cdma, which I am fairly certian it is, it can only accept the correct LTE sim card for it's network, and its not really a sim card I do not know what they call it though.

So if you put the att sim from your s2 it will do nothing, or worse it will make the phone not work correctly.
Where do you live?

state and approx region is all just need to check sprints lte coverage map see if your in it.

I do believe your best bet will be to buy a att phone and use that. You will need to (most likely) cut down the sim from your s2 to fit the microsim on current generation phones. or buy another micro sim from straight talk.
 
new optimus said:
it does not matter because verizon does not let other carriers resell the 4gLTE network only the cdma 3g.
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Exactly. I have very good Verizon lte service in my area but straight talk doesn't use it. Only the 3g. My s3 packaging doesn't say lte on it anywhere. Now straight talk does sell a lte equipped s3 but its on sprint and I have no sprint service where I live. That's why I got the 3g one. Verizon is the only service provider in my area.
 
Just a quick question,, am I reading this right? Straight talk has a s2 or s3 that is cdma v with 3g? Att and T-Mobile and sprint has terrible service in my area and I would love to have another s2 or 3. I was understanding that the only way to have one was to have a gsm service phone. If there is a way and still able to use picture messaging please let me know. Thanks
 
Straight Talk carries two s3 phones. One is the 4g lte sprint version and the other is the 3g Verizon version. Mine is the Verizon version. Its modle number is S968c. Its only 3g. The s960l is the sprint 4g lte
 
That phone you linked to appears to run off of sprint, I checked sprint coverage in branson and it is limited. Also for 4g you do need that sim like card in the phone.
 
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