Step 1: Install the CH341SER driver;
Step 2: Open the device manager to view the Manti3 port number;
Step 3: Open Firefly Manti3_Upgrade software;
Step 4: Select the Manti3 serial port number;
Step 5: [Open File] Select the firmware of the model you need;
Step 6: Click [Start Upgrade] and wait for the progress bar to finish twice;
Step 7: Finish