On this page, you will find the Download link of Champion SQ281 Firmware (flash file), which can be flashed on the device to fix it without the need of any other software.
Champion SQ281 Firmware comes as a zip file and is of 8 MB in size. Firstly, You need to extract the zip file on your computer and flash it using the flashtool.
The file version of Champion SQ281 Firmware is V1 and it was released on 21/09/2013.
File Name: Champion_SQ281_21092013.zip
Alternate Name: Champion SQ281 21092013
File Size: 8 MB
Released date: 21/09/2013