On this page, you will find the Download link of Opsson A12 Firmware (flash file), which can be flashed on the device to fix it without the need of any other software.
Opsson A12 Firmware comes as a zip file and is of 19 MB in size. Firstly, You need to extract the zip file on your computer and flash it using the flashtool.
The file version of Opsson A12 Firmware is V1 and it was released on 17/12/2012.
File Name: Opsson_A12_MT6250_17122012.zip
Alternate Name: Opsson A12 MT6250 17122012
File Size: 19 MB
Released date: 17/12/2012