Bios Mods -The Best BIOS Update and Modification Source

Hello, 

i'm new here and just wanted to ask, where to download Backup_Tools19n? 
i need have my bios modded and battery whitelisted. 

thank you in advance.

https://www.win-raid.com/t4502f16-Lenovo...moval.html try here?

(01-22-2021, 03:23 PM)ISpitLike Wrote: [ -> ]https://www.win-raid.com/t4502f16-Lenovo...moval.html try here?

You probably didn't help him with your answer but I was lost too. haha

So thank you!