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Lenovo System Firmware update 1.55 -> 1.56 deletes all SecureBoot keys and certs, disables SecureBoot / turns on Setup Mode and deletes all UEFI Boot entries · Issue #276 · fwupd/firmware-lenovo · GitHub
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La actualización BIOS desde la memoria USB no se completa: ThinkCentre , ThinkStation - Lenovo Support NG
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