Hi, my Samsung died on me and I was given a working, unlocked iPhone 3 gs. I'd used it with various providers while travelling in Europe and South America and it worked just fine. But I get a "No Service" notice from Public. The phone returns my IMEI number and shows my PM phone number, so it is reading the SIM card, but not connecting to the network. I tried changing cellular settings but still no go. Any idea what I can do tto make it work? Thank you!
You could try installing the applicable APN settings from unlockit.co.nz with safari on your iphone viaa wifi hotspot or other wifi connection.
I just switched my iphone 5s runninng IOS 7 and could not manually enter proper network settings to get public mobile network to work. I had to connect to a wifi, then visit unlockit.co.nz to install the APN provisions for my phone. It's free btw.
I think the maximum supported ios for the 3gs is ios 6.16
@DanZap while it's nice of you to weigh in with some helpful suggestions here, please note that you've replied to a thread that's been dormant for just over 3 years, last active in Dec 2015. I don't think anyone on this thread is still waiting for help, I'm pretty sure they've got it sorted out by now, or moved on to other things.