On 02 Oct 2021, Brian Rogers said the following...
My iPhone 6 with IOS 14 won't let me use the account, it's totally locked out and I don't see how I can import a new cert.
It looks like the iPhone 6 is stuck on iOS 12, so you wouldn't automatically get the new certificate store. There was just an update released for iOS 12, so maybe make sure you have that installed.
If you do, it looks like you can go to https://letsencrypt.org/certificates/
on your iPhone and tap on the der or pem links for the ISRG Root X1 certificate, your iPhone should tell you it's trying to install a profile.
... I've already got a female to worry about. Her name is the Enterprise.
--- Mystic BBS v1.12 A47 2021/09/29 (Raspberry Pi/32)
* Origin: Northern Realms (1:229/664)