Using your phone's mobile data as a modem for your PC's internet connection.

Resolves "No Service" errors after waking from sleep mode.

Samsung Electronics Co., Ltd. Modem 2.19.1.0 is a specific driver version used to facilitate communication between a Windows computer and a Samsung mobile device connected via USB. While it often appears as a "Modem" driver, its primary function in modern contexts is to allow the PC to recognize the phone for data transfer, debugging, or using the phone's cellular connection as a hotspot. Purpose and Functionality Device Connectivity

The file size is conspicuously small—just under 4.7 MB—suggesting it is not a full baseband rewrite but a delta patch. The changelog provided by Samsung, where it exists, is cryptically generic: