This mainly applies to people who've had a Straight Talk BYOP SIM before they announced LTE activation. That was around 2-3 months ago. I bought a ST SIM when I first got my Nexus 4, which isn't compatible with LTE as we all know. I've had my shiny new Nexus 5 for a few days and just got around to figuring out how to get LTE enabled on my ST #. It was STILL showing the H (for HSPA) even though the Nexus 5 can utilize LTE.
I started by using live help on Straight Talk's website. I was going to copy and paste the conversation with the representative, but closed the window too soon. They answered very quickly without issue and said I needed to buy an LTE compatiable BYOP SIM. Luckily I had a spare new ST SIM around. It was an old one from March so my impression is that any unused ST BYOP SIM will work, old or new.
Next I logged into my account on straighttalk.com and transferred my service to the new SIM. Swapped out the old micro-SIM with the new and now have LTE after changing my APN to the new "tfdata" settings. It was an instant transfer to the new SIM, so there was no waiting.
Hope this helps.
I started by using live help on Straight Talk's website. I was going to copy and paste the conversation with the representative, but closed the window too soon. They answered very quickly without issue and said I needed to buy an LTE compatiable BYOP SIM. Luckily I had a spare new ST SIM around. It was an old one from March so my impression is that any unused ST BYOP SIM will work, old or new.
Next I logged into my account on straighttalk.com and transferred my service to the new SIM. Swapped out the old micro-SIM with the new and now have LTE after changing my APN to the new "tfdata" settings. It was an instant transfer to the new SIM, so there was no waiting.
Hope this helps.