on your network type, is it now showing T-Mobile? under mobile networks>network type and strength, you can do an automatic network search and then choose t-mobile when it appears. also, check and see if your area has 4g/lte support, the verizon lg g2 only has the 2100 lte band in common with t-mobile and not the 1700 band.
It says t-mobile in the lock screen but under network type and strength it just says 3g-75dBm. Also, in this screen I can't select anything or go to any menu. I'm in Oakland, CA so I assumed I have lte. I read an article saying my city is refarmed 1900 to HSPA+. I guess that's supposed to be 4g and not lte?
How'd you get that ? mark icon in the notification to go away?