October 12th, 2013, 11:38 AM
Join Date: Jul 2011
Location: Rochester, NY
Device(s): Nexus 5, HP 14 Chomebook, Google Glass, LTE Nexus 7(2013), Logitech Revue, Chromecast
Carrier: T-Mobile USA
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It certainly sounds like a CDMA device. GSM phones don't have carrier information programmed into them CDMA phones do. The point of the SIM card is to provide the phone with the information necessary to get it on the network. Straight Talk provides service on all 4 networks, though just about every phone you buy from them runs on Sprint's network with a handful on Verizon's network. If you bring your own device GSM device, then you can run on AT&T or T-Mobile's network. So it sounds like your friends had a 3G only CDMA device because any LTE device should have a SIM slot.
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Current Devices: Nexus 5, HP 14 Chromebook (Data Enabled), Google Glass, (2013) LTE Nexus 7, Logitech Revue, Chromecast
Retired: Samsung Fascinate, Droid Charge, Galaxy Nexus, (2012) WiFi Nexus 7, Asus TF700, Nexus 4