Extracted backscatter values by using SNAP toolbox

I am using sentinel 1 images

Sentinel-1 does not hav HH polarization in most parts of the world. The soil moisture tool you are using requires fully polarimetric (HH/HV/VH/VV) data.

Thanks for your response. So these solution is not possible for my case.please do you have any suggestion that can help me to attend my objective?

Please see here: I want to extract soil moisture from SAR data

I am very thankful for your help.