SPD USB driver is the one and the only driver which required for connectivity powered by Spreadthum Mobiles.
Download the SPD USB Driver Auto Installer setup used to connect Spreadtrum devices to a Windows PC. After installing this driver, you can flash the device with SPD_Recharge_Download_Tool.
SPD Mobile USB Driver: Download
How To Install SPD USB driver:
SPD Mobile USB driver Available two types of installation 1) INF File that needs to installs manually on your pc using device manager. 2) Auto-installer is a driver setup file that is installed directly on the PC.