Elitech DMG-4B, User Manual, Page: 34 / 75

4.6 Firmware update
The device defaults to 18 commonly used refrigerants, and
customized refrigerant data can be added to the device through the
APP. The specific operation steps are as follows:
Delete equipment refrigerant:
1.Connect the device to the APP, enter the Dashboard interface, and
click the refrigerant icon in the upper right corner to enter the
Refrigerant interface.
2.Select the refrigerant to be deleted, click the delete icon, and click
the update icon in the upper right corner after deleting.
3.The device update is complete.
Add refrigerant:
1.Connect the device to the APP, enter the Dashboard interface, and
click the refrigerant icon in the upper right corner to enter the
Refrigerant interface.
2.Click All , select the refrigerant to be added, and click the favorite
icon.
3.After selecting, click Favorite, and then click the update icon.
4.The device update is complete.