Need Urgent Help

Apr 10, 2006 5 Replies
Need Urgent Help open original image

I Have Cisco 837 ADSL Router, I'm facing a problem, its flash memory gone dump. it was running fine but eventually restarted and restart in ROM Mode. Where i'm having this error : boot: cannot determine first file name on device "flash:"



i think it does mean it flash is corrupted. Plz plz plz let me know how to install the new flash and how to make this router workable?.



Thanks in Advance. Waitng



I have also try to change its confreg register vlaue but it wouldn't change. Please Solve this problem.Thanks, your earliest response would be highly appreciated.

If it's a harware problem I'd go here:

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If software:
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Can you atleast ctrl break into rommon

-- joeblac

Thanks,

JoeBlac

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Hi,

- Dir flash: and you could see a file there.

- Tried boot flash:.

- Tried Xmodem, to download a new IOS if boot fails from boot command.

- If all previous test failed, Its probably a hardware failure, and the box will have to be replaced.

/L

Afan wrote:

Did you happen to get an error message stating something like "magic number not found"? I ran into that last week, and the eventual fix was:

  1. Set config reg to 0x2101 (ROM boot helper)
  2. reboot into IOS
  3. Erase flash: (format flash: is better if your device supports it, mine didn't)
  4. Download new IOS into flash via TFTP
  5. boot system flash:
  6. change config reg to 0x2102
  7. reboot

If step 1-2 doesn't work, you'd have to Xmodem an IOS image >I Have Cisco 837 ADSL Router, I'm facing a problem, its flash memory

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