On this page, you will find the Download link of Sansui S55T Firmware (flash file), which can be flashed on the device to fix it without the need of any other software.
Sansui S55T Firmware comes as a zip file and is of 6 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 S55T Firmware is V1 and it was released on 13/06/2012.
File Name: Sansui_S55T_130612.zip
Alternate Name: Sansui S55T 130612
File Size: 6 MB
Released date: 13/06/2012