Home Errors How to Fix a Fatal Error 0xFFF on a Cisco Switch

How to Fix a Fatal Error 0xFFF on a Cisco Switch

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how to fix a fatal error 0xfff on a cisco switch 3820
how to fix a fatal error 0xfff on a cisco switch 3820

You get a fatal error message on your Switch while trying to install new software. The reason behind this is that the latest version of the firmware does not support the newest firmware files. There are a few ways to fix this error. First, you should remove all applications from your Switch. Next, you should make sure that the boot1/Boot0 file is clean and is flashed.