Silly me rather then ordering the SIM kit from Sprint due to ignorance on my part I obtained this
on eBay. When I enter the ICCID into the Sprint Activate tool it says it's invalid.
I see there are also cards with the same Part number that have a "A" instead of the "C" and wondered
if that might be my problem because this site says the iPhone 7 needs an "A". https://www.sprint.com/content/dam/sprint/us/en/campaigns/byod/compatible-sims-2019/compatible-phones-sims.pdf
I have subsequently ordered and am waiting on the official Sprint SIM Kit hoping I will have better results.
I also wonder what validation Sprint does to determine a ICCID is valid or not.
You could be right, however, most of us members on S4GRU have used Sprint for years. We were not users of T-Mobile. Do we really know how many screw-ups they had combining other networks? We were not there using it.
PRL isn't just for roaming. It's for native CDMA too. If you didn't have a valid PRL then you wouldn't be able to use CDMA. It basically says "these sites are native, these are roaming, try them in this order and prefer this group over this other group". You can also try the #*#*72786*#*# dialer code. That will wipe CDMA provisioning and force it to run again. But like I said, as long as CDMA works, I wouldn't worry about it. Sent from my Pixel 4 XL using Tapatalk