Originally Posted by nusantara
Hi, I don't know what an apn is. The problem is I want to use the Galaxy S5. The Galaxy S4 that I already have is locked to my sim. This means that I can't put my husband's sim in the phone. I can't contract for the S5 under my phone number since I already have it tied to the s4. I would have to contract the phone to his sim. Please explain more about the apn and how that will help me solve this problem.
-I'm not an expert, but I'll try to be understandable- APN is a sort of 'code' wich is used in order to 'recognise' the sim in a certain country (it changes from a country to another) and allow you to call,receive, sending messages, etc.
I knew it also worked to change the sim in cases like yours (branded phones), but can't say more cause I don't own the same device and so can't help you further.
You can try asking your phone seller or wait for someone else to help you, I wouldn't advise you to try by yourself searching in the settings.
Ps: it's not my business, but the technical characteristics of S5 are kinda the same of the S4.
Hope it helps.