Problems with sim card

Hello, i have a big problem, i bought an used droid mini and i imported the phone to mexico, it came with a verizon sim card, and reads the verizon sim, but when i put a local sim doesn't read the sim card, i talked with verizon support and they told me that droid mini is factory unlocked for global gsm, the sim card that i inserted in the droid mini i use the same sim card in a droid maxx, could someone help me to find why the droid mini don't read local sim cards? i noticed that in settings below the imei appears an iccid part, and in my droid maxx below the imei says imei sv

if someone could help me i would appreciate it
i tried restarting the phone, factory reset, flash again the software and restarting with the local sim inserted

sorry if my english is bad