Is this device locked to AT&amp;T? Or will it also work with a T-Mobile SIM card?
740989
It's locked to AT&T. I used to have a 3G iPad with which I was using an AT&T sim card so I bought this.
150162
factory unlock works with AT&T; and TMOBILE 2G/3G not 4G (see below)General2G Network GSM 850 / 900 / 1800 / 1900 3G Network HSDPA 900 / 2100 - ST27i HSDPA 850 / 1900 / 2100 - ST27a
1039231
I works perfectly with T-Mobile as I bought a unlocked one and put my T-Mobile simcard in. I think it should work also with At&t; as this a carrier uses same parameters as T-Mobile.
1670068
The one I received was unlocked. I slid in my AT&T; SIMM card and a micro-SD memory device and the phone worked perfectly. Don't know about T-Mobile.
623895
It's locked to AT&T.; I used to have a 3G iPad with which I was using an AT&T; sim card so I bought this.
1552464
Yes, mine was unlocked. Though it exhibits the AT&T's logo at start-up, it works with my T-Mobile account.
927052
The phone I purchased was "locked to ATT" and it worked just fine on my ATT plan. Locked means it works on one particular carrier, and in the case of the phone I bought that was ATT. HOpe this answers your question.
2023660
As you have a contract with T-mobile, the phone does not need to be unlocked, and is not unlocked. It is set up to work specifically with T-mobile service. I have a plan with T-mobile as well. When I broke my previous phone, I got this one and put my SIM card in it and it works great. All you need to do is put your SIM card in this phone.
1853063
No. This phone is verizon locked. Another customer said it didn't work with AT&T.; Hope that helps.
1345825
It is unlocked "as-is-out-of-the-box". If you have any question, contact the vender. All you need to do is install a T-Mobile SIM card. It will also work with many, but not all, AT&T; wireless systems (of course you need an AT&T; SIM card). You also need to configure it with the appropriate APN for the carrier.
1530362
This is locked to AT&T. You'll need to unlock to use with another carrier in US or international
458934
It is not unlocked but it works with tmobile and att. It comes with the original box and charger. You can unlock it though, pretty easily. Phone is in fantastic shape.
965081
Did not try to use the device on T-mobile but suspect it will only work on AT&T; as it appears to be tied into their cell service only like the early Ipads were only AT&T; or Verizon. There is no indication the device is "Unlocked". However you can get no contract service plans from AT&T; and go only month to month if needed.
763450
I have my account with T-Mobile and I purchased a phone that was set up with T-Mobile. If it is not set up to use AT&T then I think you would have to have Samsong "Unlock" it to AT&T network use, and then flash the ATT software into the devices programming memory ... but just educated guessing here I have never tried it. Good Luck. Mac Happy New Year!
12951
Works with T-mobile for sure. Haven't tried AT&T, but it should work. I can try it out later if you really want me to.
12953
Works with T-mobile for sure. Haven't tried AT&T;, but it should work. I can try it out later if you really want me to.
58521
By default the phone is locked to AT&T;'s service. If you get the phone unlocked then it is possible to use on T-mobile's service.