I have had to reset enterprise switches by bridging a chip to ground making it think the firmware was corrupted causing it to auto re-flash from a backup rom. It was a pain in the ass.
Archive: https://archive.today/7Eu0j
From the post:
>In the olden days, an administrator password on a BIOS was a mere annoyance, one quickly remedied by powering off the system and pulling its CMOS battery or moving a jumper around. These days, you’re more likely to find a separate EEPROM on the mainboard that preserves the password. This, too, is mostly just another annoyance, as [onionboots] knew. All it takes is shorting out this EEPROM at the right time to knock it offline, with the ‘right time’ turning out to be rather crucial.
I have had to reset enterprise switches by bridging a chip to ground making it think the firmware was corrupted causing it to auto re-flash from a backup rom. It was a pain in the ass.
Archive: https://archive.today/7Eu0j
From the post:
>>In the olden days, an administrator password on a BIOS was a mere annoyance, one quickly remedied by powering off the system and pulling its CMOS battery or moving a jumper around. These days, you’re more likely to find a separate EEPROM on the mainboard that preserves the password. This, too, is mostly just another annoyance, as [onionboots] knew. All it takes is shorting out this EEPROM at the right time to knock it offline, with the ‘right time’ turning out to be rather crucial.
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