Actually you can! It can also be done with an android, and windows phone, and any other smart phone. There is a reason cell phone carriers tell you not to use someone else's sim in your phone as it could cause issues.
Also to fix your issue after it was un registered from iMessage if you are still not receiving text messages you should 1 replace your SIM card, 2 call your carrier, speak with an engineer, have them reset your text messaging on there end.
People upgrade there phones and then can't send or receive picture messages. I bet your gonn say that's an apple problem too? You would be wrong. It is actually a carrier issue.
Do you know how iMessage works? Did you know iMessage gets registered on apples system and your carrier?
Again I'm not saying people didn't have issues. I'm saying sueing apple, blaming apple 100% and believe its a conspiracy to keep you with apple is like wearing a tin foil hat.
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Ok accept the simple part, did anyone call their carrier after de registering it from ALL of their devices? If you don't sign out of iMessage on all your devices it will not fully deregister. That's ipad,iPod, computer. Your carrier can also reset your account profile to remove the link from apple's iMessage system. People forget that iMessage only works with the help of the cellular companies. But your right I'm ignoring the simple stuff.