The following document is based on CLI commands.
In order to restore the configuration file of your DGS-3120 from an SD card, follow the following steps :
Step 1- Ask your switch to read the backup file on the SD card. In our example, the backup file is called "autobackup.cfg"
execute config d:/autobackup.cfg
Step 2- Write the configuration in the switch's internal memory
NOTE : the backup file created can't be used as a configuration file. To learn how to ceate this backup file on the SD card using a schedule, follow this link.