On Samsung devices with MSS Ver.3, trigger a RAM dump via:
To resolve this issue and restore full system security, use the manual removal and update technique outlined below: Method 1: Isolating the Driver via Device Manager
| SoC | Modem | MSS Driver Version | |-----|-------|--------------------| | Exynos 2100 | Exynos Modem 5123 | MSS Ver.3 (native) | | Exynos 2200 | Exynos Modem 5300 | MSS Ver.3.2 | | Snapdragon 888 | X60 | Uses Qualcomm’s msm_ipc – simulated MSS Ver.3 for RIL compatibility | | Snapdragon 8 Gen 1 | X65 | Wrapper layer: samsung_mss_adapter.c |
: For developers writing Android apps in Android Studio, this driver allows seamless deployment, log checking, and debugging directly on real hardware over USB. Why Windows 11 Users Are Enforcing Changes samsung android modem device driver -mss ver.3-
Often runs as the ( ss_conn_service.exe ) Common Issues and Solutions
Or via secret code *#9900# → “Copy Dump for Log” → choose “Modem Dump”.
If you encounter an issue with MSS Ver.3, always start by checking dmesg | grep -i mss and confirming the modem state with getprop | grep radio . The answer is almost always buried in the IPC logs. On Samsung devices with MSS Ver
: It facilitates advanced laboratory debugging by letting developers send serial commands to the phone's baseband processor. Resolving Windows Core Isolation / Memory Integrity Errors
It provides a communication channel for flashing official firmware (via Odin) or performing advanced "AT commands" used by developers and repair technicians. How to Install the Driver
int mss_fd = -1;
: The initialization script that maps the hardware IDs ( USB\VID_04E8&PID_6860... ) to the correct Windows system registry entries.
If your PC suddenly stops recognizing your Samsung phone for file transfer, try disabling this driver temporarily. Sometimes MSS Ver. 3 gets too aggressive claiming the device.
// For a hypothetical kernel driver controlling MSS v3 static long mss_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) switch (cmd) case MSS_IOCTL_GET_VERSION: return put_user(3, (int __user *)arg); case MSS_IOCTL_RESET: // Trigger MSS firmware reload / boot writel(0x1, modem_reset_reg); break; The answer is almost always buried in the IPC logs
On some versions of Windows 10, unsigned or older versions of the MSS driver may be blocked. Temporarily disabling signature enforcement can resolve installation loops. Is it Safe to Delete?