Skk mobile model C12 low-end simple mobile, Firmware was backup using Miracle tool.
The problem when arrived on my repair shop is password lock.
After remove the passcode via read codes of miracle tools the phone completely reset, After this i backup this as BIN files. The connection method of this read and backup is usb mode by pressing boot mode of device
The chipset of this model is RDA Coolsand. you can set the tool to coolsand rda tab then select write firmware button. The bootmode and firmware procedure is on Skk C12 Firmware download links below
DOWNLOAD
Tools and Guide : Miracle tools Free
Coolsand RDA USBDrivers for low end models on DRIVERS
Skk C12 Firmware : Coolsand_GD27LQ32
Password Rar : VIEW
Feel free tell to Admin about Invalid / Missing Download Link, Admin will FIX problem as soon as posibble... Some question will help you about (How to Download Firmware and password?) You can contact us at a main page with author Gmail,FB for fast response..