1. In the POS settings, tick "Use Customer Display", click Browse and find the daoZSLedShow.exe file in the zhiEXE directory of the installation software.
2. Find ZSLedComm.exe in the EXE directory and double-click it to pop up a setting window
3. Select the type: the model of the customer display screen, the port (COM) defaults to 1, and the baud rate (BPS): select 2400, and then click save.