Cannot get Cisco C9300M into ROMMON mode

crit · ‎02-25-2025

I have a Cisco C9300-48UXM. I'm unable to get it into ROMMON mode.

I've followed this:

https://documentation.meraki.com/MS/MS_Installation_Guides/Catalyst_9300-M_Series_Installation_Guide

"Factory Reset Button
To perform a factory reset, keep the mode button pressed for 21 seconds or more. Release the button when you see the LED lights stop flashing. The switch will reboot and revert to its original factory settings."

I've also tried powering off then holding as powering it on, plus powering it on and constantly pressing/releasing https://www.youtube.com/watch?v=_vRHDsD8NME

Also in quick succession 3 times once led lights up.

https://www.youtube.com/watch?v=JK8IbVSbl6g

When I boot up I see this:

MCU 802.3bt mode supported: True, BT mode: True

Both links down, not waiting for other switches

Switch number is 3

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Cisco IOS Software [Dublin], Catalyst L3 Switch Software (CAT9K_IOSXE), Version 17.12.3m3, RELEASE SOFTWARE (fc1)

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Compiled Fri 18-Oct-24 15:01 by mcpre

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FIPS: Flash Key Check : Key Not Found, FIPS Mode Not Enabled

cisco C9300-48UXM (X86) processor with 1301999K/6147K bytes of memory.

Processor board ID XXXXXXXXXX

2048K bytes of non-volatile configuration memory.

8388608K bytes of physical memory.

1638400K bytes of Crash Files at crashinfo:.

11264000K bytes of Flash at flash:.

Base Ethernet MAC Address : XXXXXXXXXX

Motherboard Assembly Number : XXXXXXXXX

Motherboard Serial Number : XXXXXXXXXX

Model Revision Number : B0

Motherboard Revision Number : A0

Model Number : C9300-48UXM

System Serial Number : XXXXXXXXXX

CLEI Code Number : XXXXXXXXXX

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Upoe-plus command is already enabled for switch number:3