I hadn’t started Lloyds since posting in this thread and now I get, when it does ‘authenticating your device’:
9300101: Sorry, we have de-registered your device as we’ve detected it’s been jailbroken/rooted. You will not be able to use the app but you can continue to use our mobile site.
If I ‘try again’ I get:
App launch failed
Sorry, we’re having a few technical problems. Logging in again may fix the issue, but if this doesn’t help, please try again later. (7)
If I try the app installed in a blank profile as per the instructions above it asks me to login (didn’t do it on that app before) then a similar message (9300100, “Sorry, you can’t use this app as we’ve detected that your device has been jailbroken/rooted…”
So looks like I fired whatever tripwire there is in the app.