How to upgrade firmware on VDSL2 mini-pim
Check the firmware version
user@host > show system firmware
Download the firmware version from support site, https://www.juniper.net/support/downloads/?p=junos-srx#sw.
user@host > request system software add /var/tmp/jfirmware-<version>-signed.tgz
Available firmware version field should list the latest firmware version
Upgrade the firmware
> request system firmware upgrade pic fpc-slot <fpc-slot-number>
Part Type Tag Current Available Status
version version
FPC 2
PIC 0 VDSLBCM 10 2.16.0 2.20.0 OK
Perform indicated firmware upgrade ? [yes,no] (no) yes
Firmware upgrade initiated, use "show system firmware" to monitor status.
Verify the firmware is upgraded
PIC 0 VDSLBCM 10 2.16.0 2.20.0 UPGRADED
SUCCESSFULLY
Routing Engine 0 RE BIOS 0 3.0 3.6 OK
Routing Engine 0 RE BIOS Backup 1 3.0 3.6 OK
Restart the FPC slot in which the VDSL PIM is installed
user@host > request chassis restart fpc <fpc-slot-number>
Verify the firmware version. The Current Version field should show the latest firmware version and the Status should show OK.
PIC 0 VDSLBCM 10 2.20.0 2.20.0 OK