Cant get to rommon mode on Cisco 892

[Irakli G.]

Hello Everyone

I have an issue regarding to Cisco 892 router. I want to get into the rommon mode but I cant because it doesn't not react on break command. 

Have you had that king of issue?

Thanks in advance

[Flavio Miranda]

Hi @Irakli G. 

 It can be key board detail. Make sure you fall into one of this case or try them all.

Standard Break Key Combinations

Software	Platform	Operating System	Try This
Hyperterminal	IBM Compatible	Windows XP	Ctrl-Break
Hyperterminal	IBM Compatible	Windows 2000	Ctrl-Break
Hyperterminal	IBM Compatible	Windows 98	Ctrl-Break
Hyperterminal (version 595160)	IBM Compatible	Windows 95	Ctrl-F6-Break
Kermit	Sun Workstation	UNIX	Ctrl-\l
			Ctrl-\b
MicroPhone Pro	IBM Compatible	Windows	Ctrl-Break
Minicom	IBM Compatible	Linux	Ctrl-a f
ProComm Plus	IBM Compatible	DOS or Windows	Alt-b
SecureCRT	IBM Compatible	Windows	Ctrl-Break
Telix	IBM Compatible	DOS	Ctrl-End
Telnet	N/A	N/A	Ctrl-], then type  send brk
Telnet to Cisco	IBM Compatible	N/A	Ctrl-]
Teraterm	IBM Compatible	Windows	Alt-b
Terminal	IBM Compatible	Windows	Break
			Ctrl-Break
Tip	Sun Workstation	UNIX	Ctrl-], then Break or Ctrl-c
			~#
VT 100 Emulation	Data General	N/A	F16
Windows NT	IBM Compatible	Windows	Break-F5
			Shift-F5
			Shift-6 Shift-4 Shift-b (^$B)
Z-TERMINAL	Mac	Apple	Command-b
N/A	Break-Out Box	N/A	Connect pin 2 (X-mit) to +V for half a second
	Cisco to aux port	N/A	Control-Shft-6, then b
	IBM Compatible	N/A	Ctrl-Break

[Irakli G.]

Thank you for your quick response.
I'd like to know if it possible for router to not to response on break
command at all?
I use Windows 10 and putty for serial connections. And I never had this
problem before with other cisco devices.
I know that there is command: service password recovery and if I disable it
will be imposible to break IOS normal loading process.

As I see there might not be used that command at all, because as I
remember, while router restarts it must prompt on terminal that password
recovery service is disabled.
So I guess if I dont get that message on terminal means that there is not
used that command.

[Flavio Miranda]

Yes, you should be alerted if the command were used.

 I dont believe the device will not respond to break what might be hapanning is the key sequence is not getting right to the device.

Did you try those combination I shared ?

[Irakli G.]

No I haven't tried it yet. But I definitely try it later.

So you think that keyboard combination that we have to use also depends on
device that we are going to connect and not only on operating system?

[Flavio Miranda]

Sure it is. Not all cisco device expect for Breat as boot interruption.

[Irakli G.]

OK. I will try and later I will update discussion.

[Joseph W. Doherty]

What's the config-reg setting?

[Irakli G.]

Hello, it was cable problem, I used CH340 USB To RS232 DB9 Serial Port Converter Cable.