Lenovo GE4B0 GE5B0 NM D011 REV 1 0 32MB BIOS & EC
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Lenovo GX4A0 GYG50 NM C881 REV1 0 32MB BIOS
Lenovo HY520 NM E021 REV 1 0 2021 07 13 8MB & 16MB &2MB &1MB BIOS