On this page, you will find the Download link of Walton S30 Firmware (flash file), which can be flashed on the device to fix it without the need of any other software.
Walton S30 Firmware comes as a zip file and is of 3 MB in size. Firstly, You need to extract the zip file on your computer and flash it using the flashtool.
The file version of Walton S30 Firmware is V1 and it was released on 11/02/2017.
File Name: Walton_S30_11022017.zip
Alternate Name: Walton S30 11022017
File Size: 3 MB
Developer: Walton Mobile.
Released date: 11/02/2017