The MSM8x39DownloadTool.exe has several use cases:
Use a tool like WinRAR to extract the downloaded firmware and the flashing tool into a single folder on your desktop for easy access. msm8x39downloadtool.exe
Msm8x39DownloadTool.exe is a specialized proprietary software utility used primarily for flashing stock firmware (ROMs) onto mobile devices powered by Qualcomm Snapdragon processors, specifically those using the MSM8x39 chipset series (such as the Snapdragon 410 or 615). While it is most famously associated with devices, such as the The MSM8x39DownloadTool