RAR archive holding BIOS firmware for the Lenovo ThinkPad X260, board BX260 NM-A531 at revision 4.0, with a date of 2016-04-11 in the name.

BIOS image packed in a ZIP archive for the Lenovo ThinkPad X260 built on board NM-A531.

BIOS and embedded controller firmware for the ThinkPad X260, LCFC board NM-A531 revision 3.0, supplied in a ZIP.

BIOS image for the Lenovo ThinkPad board BX260, LCFC number NM-A531, revision 4.0, sized for a 16MB flash chip.

BIOS for the Lenovo BX60 platform on board NM-A531 revision 3.0, dated 2015-11-02, and the name says it holds an original image plus an unlocked, patched version.

BIOS for the Lenovo BX280 all-in-one on board NM-A531 revision 3.0, dated 2015-11-2 and noted as a fast boot, fully working image.

Lenovo BIOS dump for project BX260 on board NM-A531, revision 1.0 dated 24 August 2015, archived as RAR and marked as working.

Working BIOS for the Lenovo ThinkPad X260, board NM-A531 revision 3.0, with the Management Engine region cleaned, archived in RAR format.

Working BIOS for the Lenovo BX260 machine built on the NM-A531 board, revision 3.0, with a date of 2015-11-2 in the name and a claimed 100 percent tested status.

Working BIOS dump for Lenovo board BX260, LCFC NM-A531 revision 1.0, with a date of 2015-08-24 in the name and a 16MB size, labelled as fully tested.

BIOS image for a Lenovo notebook on LCFC motherboard NM-A531, stored as outimage.rar; the file name itself is a generic programmer or tool output label.