Chosen Solution

I purchased an iPhone off of eBay to replace the screen, but the seller did not know the network lock and I am stuck at the activation screen of iPhone. I know that to get past this activation I need to insert a SIM card from the respective network. But I don’t know what network the iPhone is locked to, so I don’t know what SIM card to get. How can I find out what network my iPhone is locked to, bearing in mind I can’t do the usual trick of, “Settings > General > About”.

If you are stuck on the activation screen. Get the IMEI# by turning the phone off and the back on and then clicking the “i” icon in the bottom right of the screen. Put the IMEI on swappa and the phone should come up with its carrier. If not, you can go through various carrier websites to see if they direcyl recongnize it.