Help with update SM 9.30 application to SM 9.31 application

I have to update SM 9.30 to SM 9.50 but the upgrade guide must update 9.31 first

I 've search my download on HPE license but it do not have SM 9.31 download , only (.30, 9.40.,9.50

I tried to update 9.30 to 9.40 directly but it got some serious erorr (i cannot load tranfer bin after got some errors loading preupg.bin)

 

Any one have HPSM 9.31 download link??