In article ,
"BigWallop" writes:

"The Old Fogey" wrote in message
om...
Someone just changed the battery in a Hilka safe from Argos.
Does anyone know the default combination? :-(

Roger.

I think they usually default to just four combinations:

9999

1111

1234

5678

But don't just try these and give up, it will be something silly like 6789
or 0123, so keep trying. :-))

Most electronic systems will have measures to defeat such probing.
Typically after two or three wrong codes, some timer will be invoked
during which all codes will be considered wrong, and each further
wrong code entered will double the timeout. Might be even worse in
that after so many wrong codes, no code will ever open it, like the
PIN numbers for SIM cards and cash cards and some car radios.

--
Andrew Gabriel