I have a Z1-P with the same problem (see post below) and have just received a quote to repair it from www.asahiphoto.co.uk.

The quote £58 plus VAT.

The pop-up flash on my Z1-P no longer springs up. I think it may simply be that the spring has become detached as I can see what looks like a loose spring inside the casing.

Is there a simple way of solving this or does it involve a major disassembly job?

I hardly ever use the pop-up flash but would like to fix it if possible