Overview:
The latest firmware for Dobot is DobotFirmware.hex, you can upgrade it through the USB port. The upgrading processes are as follows:
Step 1: Download upgrading tools: DobotTools
Download the latest DobotTools from Dobot official website, you can download it here: http://dobot.cc/download
Unzip and install the tool, you'll see the folder structure is shown as figure1: 
Figure1 DobotTools folder structure
Step 2: Open hex file
Double click the icon DobotDownloadUtil.exe to open the download window. Then click Open button to open the hex file, shown as figure 2:
Figure2 Open hex file
Step 3: Navigate hex file
Navigate the “DobotFirmware.hex” file under the “DobotTools/hex” directory, shown as figure 3:
Figure3 Navigate hex file
Step 4: Download hex file
Click download "DobotFirmware.hex" and check the result.
Figure 4 Download hex file
Figure 5 Download successfully
