Here you can download Spreadtrum SC9850 based PAC Stock Firmware for the Symphony V150 Android device. The downloadable file High Compressed in an archive, You will get the Flash File after extraction. Included contains Flash Tool, USB Driver, and how-to Flash manual instructions.
[*] Chipset: Spreadtrum SC9850.
[*] Driver: SPD (SCI / NPI) Driver.
[*] Flash Tool: SPD Upgrade Tool.
Firmware for Symphony V150
Build Number: roar_V150_HW1_V7
Android Version: v7.0 (Nougat)
Download Size: 1.18 GB
Symphony V150 Flash Tool & USB Driver
Flash Tool for Symphony V150
Symphony V150 USB Driver
[*] Backup: During the flashing process SPD Flash Tool will erase user data from the phone. So you need to backup for restoring those files on your device.
[*] Device Information: The Symphony V150 phone powered by Spreadtrum SC9850 CPU. So you need to use SPD Flash Tool and SPD USB Driver to flash Firmware on this device.
[*] Flashing Information: You can try different types of SPD Flash Tools to flash this Pac file if you see any of them show interrupted in flashing. The following Tools are Upgrade Download, Research Download, and Factory Download.