Re: lenovo IdeaPad S145 bios needed

Hello, can someone please help me in this case. I bought replacement board for s145-15iwl but seller from Aliexpress sent me s145-14iwl board.
Laptop works, but not numeric pad and delete key. (Insert behaves as Delete).
I understand why, because 14" model has compact keyboard with power button placed on "delete" key location.

Since both models are covered by same BIOS on Lenovo website, I wonder how is differed which one is 14" and which one is 15" model? Is there some fixed part of BIOS where...