I think everyone did it wrong though, which is why you couldn't change the network mode initially (they went through setup with the Verizon sim...if you do this you have to go through the settings etc. or you will have to factory reset the device and start from setup again with the T-Mobile sim inserted). Here's a simple step-by-step if you have your T-Mobile sim ready to go.

1.) Remove the band around the Moto E (THE BACK DOES NOT COME OFF!)! Only the outer band. DO NOT POWER ON THE DEVICE YET. (refer to the manual in the box to find the spot on where to remove the band, if you are unsure), and find the pre-installed Verizon sim card. Remove it, and replace it with your foreign sim (T-Mobile, at&t, Cricket, etc.).

2) Complete initial setup. During setup you should receive the following message with your T-Mobile or other sim inserted If you did not, you did it wrong and will have to do the "other" incorrect way others mentioned with the 4G switch etc.

3) Once you have finished setup, you'll notice you still won't have signal. Proceed to Settings-->More-->Cellular Networks--> Preferred Network Type. Go ahead and select "4G (recommended)"3a.) [OPTIONAL IF STEP 3 FAILS FOR YOU] Some people seem to not be able to see this option. If you encounter this problem downloadhttps://play.google.com/store/app...ow.network(you can simply search "network", it should be the first option), and select LTE/GSM auto (PRL) from the drop-down, and repeat Step 3 again, and it should appear now. Typically this step shouldn't be necessary if the device already detects a non-Verizon sim on setup and should switch to GSM mode, but this is the workaround.

4.) That's it! you should now get H+ service first, but it should connect to 4G LTE in a few moments.You should have data service, calls and SMS working. If for some reason your data service isn't working (! exclamation point in the signal bars) and/or if you want to make sure your MMS will work correctly, there is an additional step from here.

5.) Setting up your access point name. Proceed to Settings-->More-->Cellular Networks-->Access Point Names and enter the following information for T-MobileCode:Name: T-MobileAPN: fast.t-mobile.comProxy: Port: Username: Password: Server: MMSC: http://mms.msg.eng.t-mobile.com/mms/wapencMMS proxy: MMS port: MCC: 310MNC: 260Authentication type: APN type: default,supl,mmsAPN Protocol: IPv6APN roaming Protocol: IPv4Bearer: UnspecifiedMVNO type: NoneMVNO value: Not set

Tap the three dots on the upper right hand side and save, then make sure you tap circle on the right of it (it should go from an empty circle to a filled green circle to enable the APN).

All done!

That's it!http://slickdeals.net/f/7887343-verizon-moto-e-prepaid-2nd-generation-smartphone-for-29-99-frys-best-buy-successfully-price-matched?v=1&p=76266855#post76266855Other Links:http://forum.xda-developers.com/moto-e-2015/general/how-to-verizon-moto-e-2015-gsm-network-t3098953