Having trouble sending text messages to certain contacts, any help?

Question

Never had issues sending/receiving text messages until today.

I recently had my phone replaced (about a week ago) and it was working, text messaging wise, until today. I've updated my software and firmware and I'm still experiencing issues. I noticed certain contacts are unable to receive my text messages but I cannot receive their messages. Particularly this is occurring with iPhone users and/or non-Verizon customers. I enabled delivery reports in the messaging settings and for those contacts I'm experiencing problems with, I am not receiving a delivery report notification.

This has been a frustrating issue nonetheless, particularly because I had no issues with text messages until today.

Any help would be greatly appreciated. Thanks.

Hazel_Eyes_4_U · Accepted Answer

I had that problem.  Did you have an Iphone prior to getting the S4?  If you did you need to turn off your Imessage and than unregistered your Iphone. You may have to wait 30 days till Apple unrecognized that you're no longer an Iphone user. After 30 days it worked. You can tell your friend to turn off the Imessage in the mean time.