I have 3 cisco 3640 all have sending me rommon prompt so i tried to resolve using xmodem.
i followed the following steps:
1-Into the confreg i set the baud rate to 115200 than connect it to using HT at 115200 B/r
check the flash using dir flash:
giving the command
xmodem -c c3640-jk9o3s-mz.124-5a .bin
after the completion it give me the following error.
uncompressed image checksum is incorrect 0x46b7fabc expected a checksum of 0xa8c3facd