Yes, the model number absolutely matters.
If you get a G930P, your phone will be stuck on Sprint US, which is a CDMA based service provider.
G930A is locked to AT&T
G930T is locked to T-Mobile
G930V is Verizon
G930FD is International Unlocked with Dual SIM slot -- you will need new housing if you get this one.
Your G930F represents International Unlocked with single slot SIM.
Go to http://imei.info and put our IMEI number into the field to find more about your phone.
crwdns2934105:0crwdne2934105:0
crwdns2934113:0crwdne2934113:0
crwdns2915270:0crwdne2915270:0
crwdns2889612:0crwdne2889612:0
2