Lenovo · laptop motherboard

Lenovo Flex 3 BM5455

BIOS
Revisions
Rev 1.3
Files
1
Updated

Lenovo Flex 3 BM5455 is a laptop motherboard used in the Lenovo Flex 3 BM5455.

The catalog has one BIOS file for it, posted in 2022. Each download button opens the original Telegram post.

The files are marked Rev 1.3; other revisions of the same board can differ in parts and layout.

BIOS notes: file names mention 8 MB chip sizes; some archives also hold EC/KBC firmware. Read and save the original chip contents before you write anything to it — Keeping the Windows Product Key (MSDM) When Reflashing a BIOS.

Compatible models

  • Lenovo Flex 3 BM5455

Files for Lenovo Flex 3 BM5455

BIOS and firmware 1 All bios and firmware →

Frequently asked questions

Which revision of Lenovo Flex 3 BM5455 do I have?
Files for this board mention Rev 1.3. The revision is printed on the PCB silkscreen, usually next to the board code. Pick files with the same revision when you can; if yours is not listed, the closest revision is usually fine for the schematic but check part positions in the boardview carefully.
What should I check before flashing the Lenovo Flex 3 BM5455 BIOS?
Read the original chip with a programmer and save two copies before writing anything. File names for this board mention 8 MB images; the dump size must match your chip. Some archives include EC/KBC firmware, which may need to be written to a separate chip. A dump from another board carries that board's serial number and MAC address, so restore yours from the backup.

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Files are hosted on Telegram by third parties; ExcitingSpas.com only links to public posts. Check that a file matches your board before using it. Disclaimer · Report a file