: If you are using a very old D-com model, it may not be compatible with the latest versions of Windows 11. In such cases, running the AutoRun.exe in Compatibility Mode for Windows 7 often resolves installation errors.
If it doesn't start automatically, open (or This PC), find the drive labeled D-com 3.5G or Movitel , and double-click AutoRun.exe to start the setup. dcom 35g movitel download setup link
: For specific driver issues on Windows 10 or 11, check the ZTE Support Portal or Huawei Enterprise Support if your modem belongs to those brands. : If you are using a very old