I bought iPhone 1st generation on eBay for fun, but I cannot activate it without sim card and I tried two nano simcards from Verizon and T-Mobile with an adapter, but neither are compatible with iPhone 1st generation. I called Apple support, but they couldn't provide me an answer. Do you know where can I find sim card, any size (as I'm using adapter) that would work with this ancient iPhone? Or any other way to activate it without sim card, preferably without jailbreaking.