Jazz BSI reset procedure

[Jazzyclaire]

Hi, I have owned my 04 Jazz since 2016. Early on the battery went flat and on replacing it some central locking functions etc played up. At that time I remember a link to the BSI reset procedure, something to do with opening drivers window and disconnecting/ reconnecting battery and some jiggery pokery with the ignition switch. Can anyone refresh my memory,  as the same thing has recurred after a flat battery. Many thanks!