Looking for ThinkPad E14 Gen1 BIOS R16ET43W or older (before 1.31) Model: 20RBS2J100 | Current BIOS: R16ET45W 1.31 (02/03/2026) BIOS 1.31 broke audio - Intel cAVS detected by Linux but Synaptics codec not enumerated (ACPI issue). Need previous version for downgrade. Any help appreciated.
Edit by Fernando: Thread title shortened
Hi
Did I understand you correctly? BIOS Update (Utility & Bootable CD) for Windows 11, 10 (64-bit) - ThinkPad E14, E15 - Lenovo Support US