If you know the current password, you can modify it directly through the BIOS menu:
The Unowhy Y13 presents specific challenges that differentiate it from consumer-grade laptops: unowhy y13 bios password install
This method tricks the BIOS during boot to allow booting from a USB to re-flash the bios chip. Preparation: Create a bootable USB with Unowhy Tools PE Dismantle: Remove the 14 bottom screws (2 are under the rubber pads). Locate eMMC: Identify the 8 pins on the eMMC storage chip. Short-Circuit: Disconnect the battery. Plug in the prepared USB drive. If you know the current password, you can
The BIOS password lives on the motherboard’s flash memory, not the SSD. Reinstalling Windows via USB has zero effect. If you know the current password