How to get my iPhone to work on a different network?

I have a T-Mobile iPhone 4 but my micro-sim is on Talkmobile. How do I get it to accept my own micro-sim card?

All you need to do is unlock your iphone.chances are if didn't buy from tmobile then it is unlocked. Because only unlocked phones work on tmobile unless you purchased from them. If you bought it from tmobile then you must pay off the price of your phone. And then ask them to unlock it for you.one your phone is unlocked eject the tmobile sim by stick a pin into the right side of the phone and put in the talkmobile. If it doesn't work try toggling airplane mode. Then restart.

  • Wi-Fi on iPhone keeps saying unable to join network (my network name)? How can I fix this! It's been like this for a week but it works on my laptop fine. I tried unplugging it for a few seconds, I tried resetting network settings, I tried turning my phone off then on again, and I know I'm typing it right. I even typed it in upper case AND lower case. Does anyone know how I can fix this?
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