MSS v3 supports automatic power collapse when the modem is idle:
When you connect a Samsung phone with USB tethering enabled (or when you install Samsung's official PC suite applications like Samsung Flow or older versions of Smart Switch), Windows automatically recognizes the device's hardware ID and queries its driver database. If the specific MSS Ver.3 drivers are not already present, Windows Update will download and install the necessary ssudmdm.sys and ssudbus.sys files silently in the background. samsung android modem device driver -mss ver.3-
Download the latest installer from the official Samsung Android USB Driver page, run the installation, and restart your PC. 2. USB Tethering Drops Intermittently MSS v3 supports automatic power collapse when the
interface and diagnostic functions. Unlike the standard MTP (Media Transfer Protocol) driver used for file transfers, the MSS (Modem Support Services) driver allows the computer to treat the phone as a legacy serial modem to execute low-level commands. Version 3 (MSS Ver.3): Version 3 (MSS Ver
MSS v3 uses a fixed-size header + variable payload:
The MSS v3 driver exposes a interface to userspace (rather than legacy TTY). The RIL daemon ( rild ) communicates via AF_NETLINK sockets with family NETLINK_MSS .
mss_ipc_timeout: pending tx req timed out mss_force_crash: triggering modem crashdump