Once you download this file, click the downloaded file.
The file will be unzipped in a few seconds. When the file has been unzipped, double-click device-diagnostics-tool to open it.
Click Open.
Click Run test. The tool will run diagnosis steps and collect diagnostics information. While the tool is running, you will be prompted to select a folder to save the file in. Click Save.
After the tool has finished running, the file will be opened at its save location.
Then open ClassDo support messenger. Right-click on the file, select Paste, and send the fileon the messenger.