lava iris fuel 50 after flash dead

lava iris fuel 50 after flash dead

set flash done but set not on i use all version file but no luck set is not on

this all version use

Lava_irisFuel50_S007_20140910

Lava_irisFuel50_S009L_20150311_2

Lava_irisFuel50_S015_20141212

Lava_irisFuel50_S009L_20150311_DCC lolly pop version

please tell me any solution i need help urjent