On this page, we have managed to share the official usb driver for Strawberry QX15 Device. If in case you were already searching for the usb driver for this device, then this page will help you out.
There are 2 usb driver available for your device. One is for Flashing the Stock Firmware on Spreadtrum Device and another is for normal connecting the device to the computer.
Strawberry QX15 Spreadtrum driver For Flashing Firmware
Strawberry QX15 ADB driver For Normal Connecting
How to install driver manually
Step 1: Download and extract the driver on your computer.
Step 2: Open Device Manager and Click on Add the Legacy Hardware Menu.
Step 3: Click Next.
Step 4: Select Install the hardware that I manually Select from a list.
Step 5: Locate the extracted driver manually on your computer.
Step 6: Click Add.
Step 7: Your Driver will be installed and listed in the Device Manager.
[*] Driver Signature Error: If you got Driver Signature Error While installing the Driver then See this Video to fix this problem.
[*] If you are trying to flash stock firmware on your device then download Spreadtrum Driver Only. ADB Driver will not work for flashing the stock firmware.
[*] Strawberry QX15 Stock Firmware: You can download Strawberry QX15 Stock Firmware from here.