Here you can download Spreadtrum SC7715 based PAC Stock Firmware for the Symphony GoFox F15 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 SC7715.
[*] Driver: SPD (SCI / NPI) Driver.
[*] Flash Tool: SPD Upgrade Tool.
Get Firmware for Symphony GoFox F15 (Flash File)
Build Number: scx15_x3542plus-userdebug 4.4.2 KOT49H 216
Operating Platform: (FireFox OS)
Download Size: 255 MB
scx15_x3542plus-userdebug 4.4.2 KOT49H 216
Symphony GoFox F15 Flash Tool & USB Driver
Flash Tool for Symphony GoFox F15
GoFox F15 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 GoFox F15 phone powered by Spreadtrum SC7715 CPU. So you need to use SPD Flash Tools 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.