Here share the solution to resolve Scania VCI3 envelope unknown error (E0031) after installation.
Some suggestions from the users who have the same problem:
@Tomppa78:
Try to install it on fresh windows. That works for me.
@galvad:
You need to replace files using FIX files.
@jareckii:
Fresh windows solve the problem.
Autonumen.com technician offers the solution as below:
Uninstall the current Scania SDP3 software and download the latest software 2.50.2.
Resource 1: Mega link
https://mega.nz/folder/vpJQBZSS#WHxdSAdgPJ01xAV6eqznpA
Size: 969.5 MB
No password!
Resource 2: Chinese weiyun
https://share.weiyun.com/mmCnKbt8
Password: 8xc3a5
No risk!
Note: If you don’t have a weiyun account, feel free to contact our customer service ASAP.