How to switch phones on Metro PCS?

I have a LG K7 on Metro PCS and I just bought a brand new unlocked iPhone 6s. How do I switch my Metro service over to the iPhone? Can I use my old SIM card or do I have to buy a new one?

I believe you can use your old SIM if it fits or buy a new one or an adapter if it doesn't fit.

  • Would I be able to switch carriers without having to switch phones? I'm with Consumer Cellular and I have an iPhone SE, but I'm thinking of switching carriers so that I can get unlimited data. I don't want to get a new phone because I've had my current one about six months, I really like it, and it works great. I'm not locked into a contract with Consumer Cellular. Would I be able to switch to another carrier without having to purchase a new phone?
  • Will my a iPhone 3gs work on metro pcs? I'm about to buy an iphone 3gs, but switching to metro in a few months. If i get it unlocked/flashed will it be able to work on metro? I don't want to waste my money.
  • Will I get a free iPhone 6s if I switch from another carrier to Metro PCS? I'm a Cricket Wireless customer, thinking about switchi g to Metro. If I switch will they give me a free iPhone?
  • Verizon s7 edge switch to metro pcs not receiving some texts? I have a verizon s7 edge phone that i recently switched to metro pcs service. I'm not receiving some texts from iphones and sms texts. I have tried many ways to flash firmware 935u using odin without success. Verizon said phone is NOT carrier locked. Metro pcs people don't know a solution. I have searched the internet for existing solution and have not found one that worked.