What US carriers does this work with? I have tried AT&amp;T with no luck.
302449
It requires certain frequencies, not just certain Carriers. Although the SIM300 uses one frequency that AT&T uses, it isn't the most common frequency that AT&T uses. If you want a GSM modem that works in the US you need a quad band, like the SIM900.
1779512
It doesn't work off of carriers, it works off of your phone. Android based phones.
1218103
Yes, it works with AT & T and in the U.S. My daughter has AT & T and it works fine.
684754
I'm not sure who CDMA carriers are.is that like sprint? I live in the Caribbean so it works here as our phones take Sim cards and I think our network is gsm and gave different frequency numbers. It would work in d us with carriers like at&t; and t mobile.I'm not sure if this helped...hope it did.if not explain to me more what u mean by CDMA carriers.
221475
Hello M. Cassity,I do not know. My carrier is AT&T; and the phone works marvelously. Good luck to you.
696360
Only GSM service providers such as T-Mobile and AT&T; in the United States will work with this phone. Verizon and Sprint use different technology and are incompatible with this specific model.
588034
No it will not work with any carrier. It is a genuine at&t; phone not unlocked. We don't unlock phones as it might create other problems...
283157
No, we apologize. This phone is for AT&T; and won't work for any other carrier unless it is unlocked. We do not unlock ourselves. Thank you for your interest,ClaytonRecellulartoo
221474
I have ATT. Don't know about that working on your carrier. And I'm not savy enough to guide you.
1114052
Any carrier that uses a sim card (NOT Verizon or Sprint). I have T-Mobile and AT&T; installed (2 lines) and they work beautifully!
2010791
i have at&t and it works with mine, but it souldnt matter what service you have. it should work with anything that has a micro usb port; most especially, on samsung products.
1530362
This is locked to AT&T. You'll need to unlock to use with another carrier in US or international
338512
ATT in US??? That's what I need, but I am unsure of compatibllity with ATT (and company return policy if product fails in US).
1190121
Goodnight friend. This phone works with any carrier worldwide. No problem. Depending on the band use your sim card . It is an excellent phone, provided you do not overload of applications. A pleasure to answer .
1012841
Hi, there! I'm quite sure it works with at&t. Haven't tried that specific carrier since I'm from Slovenia. But the very reason why I bought it is because it is UNLOCKED. That itself means it operates with any carrier. The reason why cells don't work with any carrier is because they are locked under specific code to allow only specific SIM to work with but those are of course cells purchased with a contract and cost 50$ instead of 700$. But that if you ask me is a contract with a devil. With Blu you not only get a fabulous Samsung Galaxy S3 analogue, you get it for 180$ and NO contract!!! Definetely a YES for the purchase if you ask me:).
1057727
Hello. I think all carriers as it is unlocked. I sent it overseas and it works perfect.
1129038
I live in the US and had the same problem. I have AT&Tand; they told me it is because the phone is not assigned to a specific carrier. So there is no guarantee your data plan will work with an unlocked phone. They told me to call Samsung which got me no where. Samsung told me to call AT&T; and they were able to fix it.