every carrier has their rules and what they must stick to. including what they allow to be brought in and what they do not.
Just to clear some things up in this thread. If you purchase any carrier branded S9, may it be from Sprint, ATT, T-MO, VZW, etc, you are going to have problems getting it to work on another carrier. That is why Samsung created Special Edition unlocked versions of the S9, which can go between carriers. The S8 was the last one that could bounce between carriers ATT, T-Mo, and VZW. It's Special Edition here on out.
I understand that buying an unlocked phone NOW after encountering this problem. I'm asking what can I do now that I want to change carriers? Anyone been able to do it successfully?
It's just Verizon that won't accept Sprint S9 yet. You should be fine with those gsm carriers. My Sprint S9+ is using an ATT SIM card after being SIM unlocked.
I like the way forum members would go out of their way to find answers! I used to be the same way in my younger days lashing out at the wrong place rather than thinking... maybe the new place is just trying to get me to purchase a new phone?!? Well, of course they are!!! In the end, others chimed in to reveal there's always something on both sides... it's rarely a smooth transition. I just like this type of teamwork in the forum.
I also have been trying to transfer to Verizon via bring your own phone. When entering my IMEI on their website I get the following message.
"The phone associated with the Device ID you entered is not compatible with the Verizon Wireless network."
I have also spoke to the rep at verizon (via online chat) and they have confirmed that the device will not work on their network. I have met all of the above criteria.
not unheard of. its the same reason Sprint only accepts in the Special Editions as a BYOD. or only certain devices from other carriers
I spent 11 months in Sprint Forward (pre-paid) until I graduated to post-paid in April 2018. As a pre-paid customer, I simply asked if I could purchase a Sprint Galaxy S7 Edge (no special edition model as the web site displays). They explained how to do this ONLY at a Corporate Store, not just any store. Sprint re-SKU'ed my IMEI from post to pre and I bought a pre-paid SIM and never been happier! At the 11th month of on-time payments, I received an email to graduate to post-paid. They could re-SKU again from pre to post (since that was its original), but the S9+ was released and I bought that outright... no time for leasing games. I didn't scream or yell, just simply asked How-To and they showed me.