Ideapad 700-15 ISK: BIOS version E5CN53WW needed

Dear all,

I recently upgraded to the latest BIOS version E5CN61WW.

However I need to downgrade to the version my laptop came with, that is the version E5CN53WW.

Since I don't have it and wasn't able to find it in Lenovo website, I kindly request if someone has it to upload it for me.

many thanks in advance,

regards,

DD81