Hello Amit,
I would strongly recommend you to purchase the support and create a ticket with us to proceed with the upgrade.
Regards Rohit Walawalkar TSE, ENT TAC - EMEA | RUCKUS Networks
You can find the firmware link below for the requested firmware:
https://support.ruckuswireless.com/software/1565-zd3000-9-9-1-0-52-mr1-refresh3-software-release-wpa2-krack-patch https://support.ruckuswireless.com/software/3221-zd3000-10-0-1-0-151-mr1-refresh12-software-release