Thanx Andrea,
I have asked synology, they say its a 3rd party program and they did not give any support for that and suggest to ask developer, so to the dcm4chee :)
The update process is done via update package, you just click the update button and when it finish the package start automatically. So it doesnt allow you u interfree to any step.
The password is not YES, The update supposed to change the connection method to the database. Probably it just update the creditenals to default. Any way to change the creditentals for the connection
If the synology package developers are here in the group they may help.
thanx