: Once recognized as a USB drive, drag and drop the firmware file (CHD or CHT) into the device's directory.

The official firmware for the DSOTC2 is typically hosted on the manufacturer's GitHub repository or their dedicated support wiki. Most users point to the FNIRSI or similar open-source project branches depending on the specific hardware revision of your device. It is crucial to verify your hardware version—usually printed on the PCB or visible in the "About" section of the system menu—before flashing any files. Installing firmware meant for a different revision can result in a "bricked" device that refuses to boot.

Developers release patches for known glitches or hardware "hangs."