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New Member

Problem after UC520 update to 7.1.1ea


I made the update of my UC520 with CCA2.1 and everything seemed to work fine.

But after the restart, the systems is locked and I cannot access it.

I connect to the console with PuTTY and I see the starting sequence but this sequence is stopping at:

Cisco IOS Software, UC500 Software (UC500-ADVIPSERVICESK9-M), Version 12.4(22)YB4, RELEASE SOFTWARE (fc1)

Technical Support :

Copyright (c) 1986-2009 by Cisco Systems, Inc.

Compiled Fri 07-Aug-09 21:08 by prod_rel_team

After this message the cursor is blinking and I cannot do anything. If I try to type something in console, nothing appears on the screen.

The RJ45 ports are not powered up on the device, only the WAN port is flashing.

See logfile included from the boot sequence on the console.

Is there anyway to reload the system if it is corrupted ?

Thanks for your help !



Re: Problem after UC520 update to 7.1.1ea

You might have a corrupted flash.  I would recommend opening a TAC case. 

New Member

Re: Problem after UC520 update to 7.1.1ea

I found a solution. I have started the UC500 with the flash: and I got then access to rommon. I then pluged in the flash: (with power on, not so good...) and succeed to reload the IOS image. Then the boot was ok.

Thanks for your help,


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