Upgrade BIOS for L840

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Upgrade BIOS for L840

I have Toshiba Satellite L840-1029 (PSK8JL-00E004) with pre BIOS version 1.20

Hardware same as Toshiba Satellite L840-ST2N01 (my laptop without pre-installed OS)

Can I upgrade BIOS version 6.20 for my laptop?

ACPI Flash BIOS version 6.20 for Satellite (Pro) C840/C845/L840/L845(v6.20; 09-11-2012; 35.6M)


My laptop current using BIOS version 1.90