On this page, you will find the Download link of Sansui R20 Firmware (flash file), which can be flashed on the device to fix it without the need of any other software.
Sansui R20 Firmware comes as a zip file and is of 4 MB in size. Firstly, You need to extract the zip file on your computer and flash it using the flashtool.
The file version of Sansui R20 Firmware is V1.0 and it was released on 14/11/2013.
File Name: Sansui_R20_V1.0_141113.zip
Alternate Name: Sansui R20 V1.0 141113
File Size: 4 MB
Released date: 14/11/2013