Here you will find the direct link to download Stock Firmware for your Oppo Neo 3 R831K Android Smartphone. The zip package included with Flash File, Flash Tool, USB Driver, and how-to Flash manual instructions. This device running on Android v4.2.2 Jelly Bean version which is manufactured by MediaTek MT6572 CPU. Use SP Flash Tool for flash Firmware on this device.
Step 1: After download the zip package then extract the Firmware.
Step 2: This flashing process required to install MTK VCOM Port USB Driver.
Step 3: Open SP Flash Tool and select the scatter file from downloaded flash file.
Step 4: Connect your device to the Computer and start the flashing.
[*] The flashing process can erase the devices full ROM, before starting flash please make a backup for your important data.
[*] After installing Firmware on your Oppo Neo 3 R831K device it will startup with a Factory Default condition. Firmware flashing on your device help to recover Software related dead issue, remove security and upgrade the operating system.