firmware
http://www.mediafire.com/download/debnuxazh2rko0c/S3512AP_Rio_Junior_TV_09262014_V1.10.rar
flash tool
http://www.mediafire.com/download/zfnicm5cjp3v6ds/SP_Flash_Tool_exe_windows_v5.1424.00.rar
procedure step by step
1. Enter folder “SP_Flash_Tool_exe_windows_v5.1424.00â€, run flashtool.exe
As the picture shows , select file MTK_AllInOne_DA.bin under folder SP_Flash_Tool_exe_windows_v5.1424.00 for Download Agent,and scatter file in the software package for Scatter-loading
2. Select Format option,press CTRL+ALT+V to enter advanced mode,select format whole flash and Forcedly Erase
3. Enter Options,select download menu,select Physical Format/ Readback,then close this window,press Start button,connect USB cable to your phone(power off or take out battery),it’ll format your phone automatically.
4. After format your phone, you can go to download screen and download software to your phone.
5. load firmware file,and click Download..disconnect the cable from phone,remove battery,then insert again,insert cable....waitl till finished!!
sana maka tulong......