: The "CH BOOT" drive is a virtual disk for updates only; do not try to store other files there.
Note: I interpret "dsotc2 firmware upd" as a request for an in-depth, technical and practical examination of firmware update processes for a device or platform referred to as "DSOTC2" (interpreted as a device model or firmware project name). Because the identifier is ambiguous, this treatise treats DSOTC2 as a representative embedded device/platform and covers firmware update design, implementation, deployment, security, and maintenance in a way applicable to similarly named embedded systems. If you meant a specific vendor/model, I can adapt this to that device on request. dsotc2 firmware upd
: Third-party enthusiasts sometimes develop custom firmware to simplify the "convoluted" original UI, which users have criticized for being non-intuitive. : The "CH BOOT" drive is a virtual