I've seen a lot of posts about bluetooth issues, but I can't find anything about this: when I start BT on my pixel XL running 8.1 (the April security patch), it immediately closes. I'm fairly sure that it was okay in January, and maybe February; I think the trouble started with the March update. I have an unlocked and rooted (Magisk) phone, so I've been flashing my own updates. I thought about trying to flash an older version, but I'd rather not lose the security patches. where is the BT code? I know about the radio and modem images; is it one of those? any caveats?