This tutorial is very simple for flash, when you need flash device ? first when your device hang on logo, you can use when your device in pattern lock, security lock, screen lock etc, you can use when your device in restarting issue, you can use when our device in automatically wifi starting or data connection, you can use when your device in auto apps installed so i means not above mention issue then you can use this tutorial but your device in issue of any type software related then you can use this tutorial this tricks for everyone who using software related with experience or new user technician.
This flash file tested by me without any error working well, you can use this flash file when your device hang on logo problem, restarting problem, security lock problem, password lock problem, pattern lock problem etc software related problem and you can use this tutorial without any box and this is free for all who know about software in mobile, impotent for flashing first must check your micro usb cable if not good then you can't flash it so check micro usb cable second check your device battery that is impotent for flashing if your device battery low so stop your device between flash so this is impotent for flash, before you flash save your data like contact, photos, videos etc because this is factory flash file so you can't save after full flash so must remember all are impotent notes.
1.First download tested firmware or flash tool from above link (if link not working just write down comment on below comment box)
2. Extract to desktop or as you like path where you can to manual paste firmware for use second time
7. Wait until driver install, if driver installed in your computer or laptop then download start automatically into device