What could be planet Earth's biggest water reservoir has been discovered around 400 miles underneath North America, inside mantle rock. Published in the journal Science, researchers from Northwestern University and the University of Mexico say there is evidence of oceans' worth of water tied up deep in the planet's mantle.
Yes you can. Tmobile an AT&T both run on a GMS frquency. Mymalathy answer: You need to unlock from AT&T Network lock,then you can use the T-Mobile Network,You can use the unlo â¦ ck code to unlock it... after unlock it use your phone with any GSM Network Sim card..ymalathy answer: You need to unlock from AT&T Network lock,then you can use the T-Mobile Network,You can use the unlo â¦ ck code to unlock it... after unlock it use your phone with any GSM Network Sim card..
Virgin Mobile now uses sim cards and ATT and other carriers only what customers to use their phones, so the phones are locked for use only on their network. If you get an unlo â¦ cked cell phone you can use it on any carrier that uses sim cards. NOTE: Tmobile and prepaid carriers don't have Iphones on the service.hey tie the service into the ESN number on the phone handset, so switch â¦ ing the sim card does not switch your service.   The other challenge is that Tmobile runs on a different technology than Virgin. Tmobile is on GSM technology. GSM stands for Global System for Mobile Communications.