On this page, you will find the Download link of Symphony D140 Firmware (flash file), which can be flashed on the device to fix it without the need of any other software.
Symphony D140 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 Symphony D140 Firmware is v1 and it was released on 04/10/2016.
File Name: Symphony_D140_02192016.zip
Alternate Name: Symphony D140 02192016
File Size: 3 MB
Released date: 04/10/2016