How do I flash Toshiba Satellite C55-B5202 EC ROM?

Don't ask how to hack password. (BIOS Passwords)
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gs2000
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I'm trying to flash BIOS on my Toshiba Satellite C55-B5202 using afudos.exe. I downloaded BIOS from Toshiba website and extracted the following two files.

BIOS.ROM
EC.ROM

I was able to flash BIOS.ROM using afudos.exe BIOS.ROM /p /b /n /k. But I can't find a way to flash EC.ROM. Do I need to merge them together before flashing them, or? Thanks for your help.
edwin
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The EC is for theEC chip also known as KBC chip which controls keyboard, some voltages on other chips and several other functions. I don't know what utility to use for programming it, if you flashed the main bios and the laptop functions I think there is no need to downgrade the KBC chip. In fact from what I read elsewhere you risk breaking the laptop altogether.
edwin/evasive

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System error, strike any user to continue...
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