Ok thanks, i will try it. I'll back for the result later...

Lenovo L13 Yoga Gen 2
- SN : R9-146K8V
- Type : 20VK-0024US
With Procesor i7-1185G7 vpro, has 2 SOIC8 chips wtih Gigadevice (EC) and MXIC (BIOS)
The problem is 4 note beep when power on, then off after beep

Have tried the bios file from this thread for 20VK, the beep is gone but light power indicator always flickering and still no display

Can anyone share the BIOS file or EC file for this type?

Here the original backup BIOS file...