I just received the board, connected to USB 5v power supply. Went through the instructions to set Year, Date, Time. Saved the settings by holding SET for 3 seconds (Example 2020,05 27,12:48). The settings seem to have saved, and the display shows 12:48 with the center ‘:’ blinking. However, the time never advances, it just continues to show 12:48 no matter how long I wait. All other functions on the board seem to work as the instructions indicate, but the module will not give the current time of day or keep the time of day.
I ordered the part off Amazon.com
-jn