Re: Panasonic CF-AX3 Bios Bin

Hello everyone, I got a problem with panasonic cf-ax3. Recently I updated bios and firmware to the lastest version. Unfortulately, after updating the laptop does not charge and discharge the battery 1 (external one) properly. Thus, I want to downgrading bios and firmware (EC) to the previous version.
My current latest version of bios and firmware are V2.00L19 and V2.00L18 accordingly.
The previous version of bios and firmware are V2V2.00L16 and V2.00L12 accordingly.

Could you pls help me how to downgrade from current version...