Troubleshooting
Restoring a Flash Image
3. When the Self Test LED begins to flash, release the Clear button.
The switch will then complete its self test and begin operating with the
configuration restored to the factory default settings.
Restoring a Flash Image
The switch can lose its operating system if either the primary or secondary
flash image location is empty or contains a corrupted OS file and an operator
uses the erase flash command to erase a good OS image file from the opposite
flash location.
To Recover from an Empty or Corrupted Flash State. Use the switch’s
USB serial console to connect to a workstation or laptop computer that has
the following:
â– A terminal emulator program with Xmodem capability, such as the Hyper-
Terminal program included in Windows PC software.
â– A copy of a good OS image file for the switch.
Note The following procedure requires the use of Xmodem, and copies an OS image
into primary flash only.
This procedure assumes you are using HyperTerminal as your terminal
emulator. If you use a different terminal emulator, you may need to adapt this
procedure to the operation of your particular emulator.
1. Start the terminal emulator program.
2. Ensure that the terminal program is configured as follows:
â– Baud rate: 115200 â– 1 stop bit
â– No parity â– No flow control
â– 8 Bits
3. Use the Reset button to reset the switch. The following prompt should
then appear in the terminal emulator:
Enter h or ? for help.
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