I tried to upgrade PIX-520 ios version up to 6.1(1) with a floppy disk which is created by boot helper file bh61.bin PIX firewall opened in boothelper> mode easily after booting floppy. Then i tried tftp downloading into the flash the file pix611.bin . There was no error but instead of asking do you want this file write to flash it rebooted with the following error!
"Watchdog timeout failure! Please contact customer support."
After all, i recognized solution by "erasedisk" file but the problem is still there. After downloading erasedisk611.bin file its output was the same. Again a watchdog timeout failure. In attachment there is a command output off all this.
What i have to do to solve this problem in ease?