Flash File with Contents.xml can only be flashed in QFlash Tool like: jio F220b, F90m etc. 1-Download the latest version of QFlash tool i.e v9.1.6 & Double click on exe file. 2- Tool interface will appear 3- Tap the Load Content & input the path of the file. 4- Phone Connect using Boot Key. The tool will show the Download Content Button. Click on Download Content to begin the Flashing procedure.