Default firmware help

frndz plz help me to find naide n9292 firmware this is also known as valumaxxE1
Manufacturer sprd
Model NAIDE N9292
Android version 4.1.0; W12.20_P20.01; SDK10
CPU 2 cores; Dual-Core ARMv7 Processor rev 1 (v7l) sprdbp; Max: 1000.0 MHz; Min: 400.0 MHz
Display 800 x 480; DPI: 240; Evaluated Size: 3.9"
Touch screen Multitouch 2 points
GPU Mali-300; ARM; OpenGL ES-CM 1.1; OpenGL ES 2.0
RAM 256 MB (238 MB available)
Flash 0.5 GB (0.447 GB actual)

in this link all the sepcifications are given plz hepl me
i root my phone and delete some important files now i am trying to flash but i cant find right files to flash my phone plz help me
details are

http ://specdevice .com/showspec .php?id=56f2-4fea-6611-1eab18a00f31