Hi,
I currently offer a repair service for this. Please see my page at:
http://www.3dlabellingsystems.com/pages/micra_faulty_boot_switch.html
Will have the new switch back to you within 2 days.
I don't use the poor quality Nissan switch but an alternative high-spec. IP67 rated switch.
Just drop me an email (see site) if you need any info.
Regards, Ewan
Ewan
February 2013