Why can't I receive texts from iPhone users?

[zcmitchell]

I just upgraded from an iPhone 4 to a Nokia Lumina 928 last week.  I was forced to make the upgrade because my iPhone's charging port broke (due to normal wear and tear), and could no longer be charged.  I was unable to acquire a replacement prior to the phone dying completely, and as such, I was unsuccessful in resetting the iPhone.

I am unable to receive texts from any iPhone users, period.  We have tried deleting my number as a contact, resetting the SMS and iMessage settings, deleting my number and unregistering my device from iCloud and Apple, and I am still not receiving messages.  These are standard messages, without pictures.

What is the solution?

[#2 · Accepted solution]

Your phone isn't the problem.

Your contacts may be using iMessage, which can only be used with other Apple devices.

Turning iMessage off resolves the problem.