before mobile fully dead i try to write original firmware on volcano box but not write after i write Dragon box so my problem is solve.
see in tutorial "
step 1: if u have volcano box.
step 2: open it spd inferno tool
step 3: after select format option
step 4: select correct chip number
step 5: after click correct chip number then show 2 option.
step 6: select android version and click next
step 7: connect usb in 20 second
all done.
first of all if u don't have box so try this method
mobile power of after press volume + and press power button after show telenor logo after show factory option then select wipe data and wipe cache.