In my case, after a long while I've realised that upon an attempt to log
in, Facebook sends me further auth e-mail not to the primary e-mail
address (opposite to what happens when logging to FB). That solved my
issue.
Same issue. Facebook keeps locking any account and I am unable to save
the device. No code is sent. I can’t use the device, can’t perform
update. Infinite loop. What’s the point of having the headset if the
**bleep** single point of failure is stupid...