1. What were you trying to flash?
2. Was flashing successful or it got interrupted?
Ans=1. I am to try to install Doogee-X5 firmware, because there is some error(i.e unfortunately gallery has been close) and some one told me it was firmware/Rom/Flash/Software issue. I search its firmware on google but not found, and finally i try install Doogee-X5 (Cause its BB is also MT6580) firmware through SP-Flashtool.
Ans=2. After installing Firmware my Smartphone got black screen, and unable to turn on, I am also try to start it on recovery mode, by pressing "Up-Volume Key+ Power Key" , Down-Volume Key + Power Key", "Up-Volume Key+Home+ Power Key" and "Up-Volume Key+Down-Volume Key+Home+Power Key" and so on but failed.
After that i brought my Smartphone to Repair Shop but he said that, this phone is dead and it could be repair after installing software. After searching its firmware he didn't found its Firmware. And now i am searching it on your forum.