Unable to boot 2811 router from rom mon mode

[networker.cisco]

Hi,

I have 2811 router boots in rom mon mode everytime  and i have downloaded a IOS into flash using TFTP

which is around 32 MB and it was success

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rommon 1 > dir flash:
program load complete, entry point: 0x8000f000, size: 0xcb80
Directory of flash:

2      37526692  -rw-     c2800nm-entbase-mz.151-3.T.bin

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I have setup confreg as 0x2102 and tried this command rommon 2 > boot flash: c2800nm-entbase-mz.151-3.T.bin

to boot the router from the IOS available in flash but it gives error as below

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Readonly ROMMON initialized
program load complete, entry point: 0x8000f000, size: 0xcb80

program load complete, entry point: 0x8000f000, size: 0x23c9adc

Error : compressed image checksum is incorrect 0x89E40B95
        Expected a checksum of 0x63B1833A

*** System received a Software forced crash ***
signal= 0x17, code= 0x5, context= 0x80026f40
PC = 0x8000f0d4, Cause = 0x20, Status Reg = 0x3040a803
c2811 platform with 262144 Kbytes of main memory
Main memory is configured to 64 bit mode with ECC enabled

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anyone can you tell what should be the next step in troubleshooting

Rgds / Siva kumar

[networker.cisco]

all thanks for your replies

I have one more working good 2811 router and what I did is removed the flash from that working router and put into the non working one

No luck still the same, I have even tried reverse putting the flash from the not working 2811 to working one, it throws same error

Any idea, I couldn't guess now where the probelm is

[tiperry]

Please go ahead and open up a TAC case.