Geometric correction of Sentinel-1 data using PolSARpro

is SNAP up to date?

yes,all the SNAP plugins had updated to the latest.Then I used another computer to test,it geocoded correctly,so I think it maybe my computerā€™s environment has some problem.Iā€™m ready to re-install my computer system.
Thank you very much.Mr.ABarun.

Maybe you could try with an external DEM instead of the predefined SRTM option.
It must be stored as a GeoTiff in WGS84.

Related to this topic, is there a way to Geocode SAOCOM data in PolsarPro?