Lenovo B490 Unlock / Remove White list for The Checking Original Battery

Hi !

I have below Laptop

OS                                                                  - Windows 10 Home
Processor                                                        - Intel Pentium CPU B960 @ 2.20GHz
RAM                                                                - 4.00 GB
System Type                                                    - 64-bit 
UEFI BIOS Version                                            - H5ET40WW(1.13)
UEFI BIOS Datre                                               - 6th Sep. 2012
Embedded Controller Ver                                   - H5EC28WW(1.08)
Machine Type Model                                          - 20207
System Unit Serial Number                                 - WB09300938

I bought new battery other than Lenovo company and I got an error message below and system tray battery icon show plugging,not charging. 

Quote:The system does not support batteries that are not genuine Lenovo-made or authorised. The system will continue to boot, but may not charge unauthorised batteries.
ATTENTION: Lenovo has no responsibility for the performance or safety of unauthorised batteries, and provides no warranties for failures or damage arising out of their use.
Press the ESC key to continue.

So, I googled and cam to your site and here after some study I saw that people posting their BIOS backup and you helping him.
Please guide me how or using which tool I backup my bios and posting here.
Regards