If the external display is reflecting a different count than what’s showing on the main display i.e. 10pcs counted on the External Display vs 13 pcs counted on the Main Display - please proceed with the below steps:
1. Perform a quick factory reset. Press “BATCH”, select “102” and press “BATCH” again. The machine will perform a factory reset.
Video instructions: https://youtu.be/Qxyo_8eem9Q
2. Update the Main Software
Article - https://deteckusa.reamaze.com/articles/dt800-main-software-update-bin
If the above steps do not help resolve the issue, please contact our support team support@deteckusa.com and we will do our best to assist you.