[cisco-nas] router cannot boot

[Souphonh]

Dear Sir,

I have problem with booting my 2611 router. Actually, I upgraded the IOS for that router, but I forgot to check the checksum after finish tftping. Then I just reload the router after finish tftp, and it cannot boot. The following is the message that I got at my terminal machine at the problem occurs:

  System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)
  Copyright (c) 1999 by cisco Systems, Inc.
  TAC:Home:SW:IOS:Specials for info
  C2600 platform with 32768 Kbytes of main memory

  program load complete, entry point: 0x80008000, size: 0x5bca80

  Error : compressed image checksum is incorrect 0x8A319D1A
          Expected a checksum of 0x8A31A51A

  *** System received a Software forced crash ***
  signal= 0x17, code= 0x5, context= 0x0
  PC = 0xbaddaddd, Vector = 0xbaddaddd, SP = 0xbaddaddd

  *** Machine Check Exception ***
  PC = 0xfff14e30, Vector = 0x200, SP = 0x81fffe28 

I have the old IOS on my tftp server, but how can I reload it into this router again. Please help to recovery this error.

Regards,
Souphonh
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