I am following up with you request. I got my SIM card today that I bought from Boost Mobile.com at this link Bring Your Phone page
The kit comes with three (3) different SIM cards. The one that will work should me SIMOLW506TQ, that's the one that worked for me. My Samsung Galaxy S9+ is now activated with Boost Mobile service. If you have any questions or need help let me know.
I have a s9 Factory unlocked straight from Samsung. Was told not eligible for activation why? I had no problem with my unlocked note 8 ! When can we activate these phones on Boost service ? Stinks to have a brand new phone & its useless on your service.
When will we be able to activate a factory unlocked s9 on Boost service ? Was told not able to on 3/24/18 ? Kind of depressing to buy your wife a new phone & it has to set useless