When we make bootrom update of R3640E from v7.08 up to v9.05, after downloading software we get alarm information and devise reboots with old bootrom version.
we need to find way to update.
this is the consecution of commands:
-press Ctr+B to enter bootrom menu
-enter choise 7: Do not check the version of the software
-enter choise 1: Download application program with XMODEM
-choose 5: 115200 bps
-stop connection, change bitrate to 115200bps, save it, start connection.
-choose send file with x-modem,
-after transferring stop connection, change bitrate to 9600bps, save it, start connection.
-choose save and reboot.
sysytem will reboot and you will see new bootrom version.