Travelling last night on a restricted Waterloo/Stratford only service the
in-carriage displays were showing the following sequence -

Boot version number 101
Application version number 101
No errors detected
Address switch is set to 0
[blocks]
[a single line]

Was this owing to a fault on that particular train, or was it caused by
the earlier power outage? The Jubilee's Sonia-equivalent announcing the
stations was behaving normally.