Here, copy the following link to download.
0 c 0 CPM 0 Cr H5 bs 0 c 0 cjsm 7 bu 15f 05 f 15f 20 z
Put your certificate on your mobile phone, open the free signature tool, set it up, select your certificate in the signed certificate column, and finish.
Select Add Task, select the SIS file to be signed, sign and complete. The signed SIS file can be found in the corresponding directory.