Router 2621xm does not boot

[rizwanr74]

I did this on the router:

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rommon 16 > IP_ADDRESS=10.1.1.103
     rommon 17 > IP_SUBNET_MASK=255.255.255.0
     rommon 18 > DEFAULT_GATEWAY=10.1.1.1
     rommon 19 > TFTP_SERVER=10.1.1.1
     rommon 20 > TFTP_FILE=c2600-c-mz.123-26.bin
     rommon 21 > tftpdnld

               IP_ADDRESS: 10.1.1.103
           IP_SUBNET_MASK: 255.255.255.0
          DEFAULT_GATEWAY: 10.1.1.1
              TFTP_SERVER: 10.1.1.1
                TFTP_FILE: c2600-c-mz.123-26.bin

     Invoke this command for disaster recovery only.
     WARNING: all existing data in all partitions on flash will be lost!
     Do you wish to continue? y/n:  [n]:  y

     Receiving c2600-c-mz.123-26.bin from 10.1.1.1 !!!!!!!!!!!!!!!!!!!!!!!!!!!!
     File reception completed.
     Copying file c2600-c-mz.123-26.bin to flash.
     Erasing flash at 0x607c0000
     program flash location 0x60440000
     rommon 22 >
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And then I did this again and again, I couldn't reboot the router, actaully this happend to two of my 
routers.
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rommon 4 > tftpdnld -r

          IP_ADDRESS: 10.1.1.103

      IP_SUBNET_MASK: 255.255.255.0

     DEFAULT_GATEWAY: 10.1.1.1

         TFTP_SERVER: 10.1.1.1

           TFTP_FILE: c2600-c-mz.123-26.bin

.

Receiving c2600-c-mz.123-26.bin from 10.1.1.1 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

!!!

File reception completed.

program load complete, entry point: 0x80008000, size: 0x722934

*** Software Emulation Exception ***

PC = 0x80008004, Vector = 0x1000, SP = 0x8000617c

monitor: command "tftpdnld" aborted due to exception

rommon 5 >

Please help.

thanks

[Kasiraman S · Accepted solution]

Hi Rizwan

,

Either this could be the issue with the IOS or with the hardware(DRAM). Try upload the new IOS from the TFTP and see if that fix the issue or not. If not try swap the working DRAM from another Router and update me.

Do rate helpful post.

Thanks,

Kasi

[rizwanr74]

Kasiraman S, you are correct, it is the problem with older IOS.  I downloaded newer IOS and problem fixed.  This problem took away my last night sleep and an entire Saturday fighting over these two routers.  You saved my routers and half the weekend fun.  Thank you, Thank you Thank you.  You are a hero.