The firmware alarm started immediately following the Junos upgrade to 25.4R1 or 25.4R1 based service releases, but the current show system firmware output shows all firmware components as OK, and available firmware versions are 0.
> show chassis alarms
1 alarm currently active
Alarm time Class Description
2026-09-16 22:02:27 CST Minor RE 0 firmware outdated
> show system firmware
Part Type Tag Current Available Status
version version
Routing Engine 0 BIOS 1 0.29.1 0 OK
Routing Engine 0 FPGA 2 1.103 0 OK
Routing Engine 0 I210 3 3.30.2032 0 OK
Routing Engine 0 I210-HA0 4 3.30.2047 0 OK
Routing Engine 0 I210-HA1 5 3.30.2047 0 OK
Routing Engine 0 CTRL-FPGA 6 1.55 0 OK
Routing Engine 0 UCD 7 0.6 0 OK
Routing Engine 0 NAC-FW 8 3.9 0 OK
Routing Engine 0 SSD1 13 2.48.1 0 OK <<<-----------------------
Routing Engine 0 SSD2 255 23.2.14 0 OK
CHASSISD log：
Sep 16 22:43:29 dynamic_read_fwinfo: Firmware version mismatch for SSD1
The issue is specific to the Swissbit pSLC SSD starting with SFPCXXXXX on SRX Fleming devices. This is a false alarm caused by incorrect definition of the minimum required SSD firmware version in the Junos code. This firmware alarm was introduced in 25.4R1 release for SRX1600, SRX2300, SRX4120 and SRX4300 platforms. A fix is expected in a future release of Junos 25.4R2.
> show vmhost hardware
Compute cluster: default-cluster
Compute node: default-node
Hardware inventory:
Item Capacity Part number Serial number Description
DIMM 0 16384 MB NT16GA72D8PFX3K-IX 80CA2422 DDR4 2933 MHz
DIMM 1 16384 MB NT16GA72D8PFX3K-IX 80CA253D DDR4 2933 MHz
DIMM 2 16384 MB NT16GA72D8PFX3K-IX 80CA2544 DDR4 2933 MHz
DIMM 3 16384 MB NT16GA72D8PFX3K-IX 80CA24C5 DDR4 2933 MHz
Disk1 120 GB SFPC120GM1AR2MT 0000602765649C0000B9 SLIM NVMe SSD <<<----------------------------------------
Disk2 960 GB ATPFT960GP48APHBFI-JNP2 25080209-000270 SLIM NVMe SSD
Tracking PR: PR1982216https://prsearch.juniper.net/problemreport/PR1982216
The fix will be available in following future releases:
25.4R2 26.2R226.4R1