Upgrade failed. Doesn't boot

[rbaldanzi]

Hi guys,

i've just tried to upgrade a Baystack 420T with a the 3.1 boot image and diagnostics. During the upload in TFTP is said that it had succeeded, but on reboot, it does nothing. Is there a way to hard reset? Another boot loader?

 

[Jephph]

Connect via serial cable, power-up the switch, then about 5 seconds into the boot-up, type Control C. A menu should pop up that allows you to do a few things. I believe that "i" is the menu item that you need.