Follow below steps when a production printer says "Update new firmware USB active" on the display screen
Before you begin, make sure the USB cable is connected from the printer to the Prod AIO.
Go to the following Link - ZT411 Industrial Printer Support & Downloads | Zebra
Download the latest firmware zip file under Printer OS section to your laptop.
Go to the following link - https://www.zebra.com/us/en/support-downloads/software/printer-software/zdownloader.html
Download Zdownloader.
Drag and drop both files onto the MIS desktop of the PC that is connected to the prod printer throwing the error message.
Open the Zip folder with the firmware and drag the ZPL file to the desktop.
Run Zdownloader as an administrator
leave the default setup for every option during the installation
Go to the following link and complete steps 2 through 8 https://supportcommunity.zebra.com/s/article/Using-the-ZDownloader-Utility-Available-from-the-Zebra-Website?language=en_US
Test print DGR.