Cisco 4431 failed to entered ROMMON

[NTrejos]

Hello guys,

I've been trying to factory reset a cisco 4431 but for some reason, everytime I hit break with Putty or CTLR+break with Hyper terminal the router refuses to entered in ROMMON. I breifly entered it before but I can't access it no more and thsi is what it displayed:
rommon 2 > set
PS1=rommon ! >
ETHER_SPEED_MODE=4
RET_2_RTS=
TFTP_RETRY_COUNT=20
LICENSE_BOOT_LEVEL=
MCP_STARTUP_TRACEFLAGS=00000000:00000000
BOOT=isr4400-universalk9.16.06.07.SPA.bin,1;isr4400-universalk9.16.06.04.SPA.bin,1;
RET_2_RCALTS=
RANDOM_NUM=1076643487
BSI=-1

Anyone has encountered any of this situations before and how were you able to entered ROMMON mode to factory reset it?

Thanks

[Leo Laohoo]

Post the complete output to the command "dir bootflash:".

[NTrejos]

Hello @Leo Laohoo 

I can't do that since the router still have username and password which it was lost or forgotten. I've attahched a txt file from the router while booting but I can't get into the ROMMON for some reason.

[Leo Laohoo · Accepted solution]

Ok, so the problem is the application used for console is not accepting the Ctrl+Break sequence.  

If this is correct, what are you using, Putty?

Standard Break Key Sequence Combinations During Password Recovery

[NTrejos]

Yes. I also tried with Hyper terminal and still did not entered into ROMMON. Now I only have a black screen in Putty.

[Leo Laohoo]

I believe every ISR4000 purchased comes with a USB 5-pin mini USB Type-B to USB Type-A console cable.  

Was this ever used?

[NTrejos]

I am using RJ45 to USB type A since the one you mentioned was stolen.

[NTrejos]

Hey @Leo Laohoo 

I was able to get in the ROMMON mode and reset the router. I unplug all the cables, let it sit for a minute and then turned on the router pressing the spacebar and I was able to get into ROMMON. Thanks for your help!