I'm coming from a Nexus 6 that I've been with Fi on, and I popped my SIM card into my Pixel XL, but when I try to finish the activation, it keeps telling me that the SIM card isn't compatible, and to replace it with one that is. It appears my service is working, from what I can tell (as I can make/ receive calls and texts and browse the internet), but I have a perpetual ongoing notification from Fi that it hasn't finished activating, and when I try to finish it to clear the notification, that's when I keep getting the error. Any ideas?
Here is a snippet from Fi support I read somewhere and copied to my notepad. I would start by using the repair bad activation dialer code. The others are just good to have for reference. If you force a carrier the auto switching doesn't work even for trusted WiFi.
"Thanks for being a Project Fi user! ?*You may have heard about these mystical dialer codes. ?*Here they are and here's what they do!
Force Jump to Sprint: ?**#*#34777#*#*
Force Jump to T-Mobile: ?**#*#34866#*#*
Force Jump to Next Carrier: ?**#*#346398#*#*
Turn On Auto Switch: ?**#*#342886#*#*
Repair Bad Activation: ?**#*#34963#*#*
Current Network Info: ?**#*#344636#*#*
Make sure if you don't want to be locked into the carrier you force switched to, you need to use the "Turn On Auto Switch" code afterwards. ?*Auto-switching will resume after a reboot. ?*However, it will start with the last carrier that you were connected to before the reboot."
Edit:for some reason the codes are adding a question mark and another asterisk to the beginning. It's
Star,Pound,Star,Pound then Pound,Star,Pound,Star