The DDCS is notoriously picky. Use a 4GB or 8GB USB 2.0 drive formatted to FAT32 . Avoid high-capacity USB 3.0 drives.
Even with careful execution, problems occur. Here is how to fix them. ddcs v3 1 firmware update
Once the screen says "Update Successful" or returns to the main menu, remove the USB drive and restart the unit. Troubleshooting Common Update Issues "The controller won't recognize the USB" The DDCS is notoriously picky
You cannot simply download the "latest" firmware and flash it to any board. Firmware written for the V3.0 hardware will likely brick a V3.1 board, and vice versa. Furthermore, some "clone" boards use different flash memory chips that are incompatible with the official manufacturer firmware. Even with careful execution, problems occur
Some users report random Z-axis movement or "Z-plunging" after updates. This is often linked to incorrect "Power Cut" recovery settings or noise interference. USB Connection: