Reset huawei Ascend P7 I'm trying to reset my phone, but It doesn't work. When I try to reset it via android settings, it restarts, shows the Huawei logo and shutsdown. When I manually restart it its back to its original state before the backup. 

I cant boot into recovery or fastboot, it justs shows a black screen. My phone is rooted, but I don't have root acces because of immutable.list. Help would be appreciated.
As I don't have this device, I can't say too much. Also, I can't comment because of my rep. But whatever. 

Try to flash recovery even if your flashboot returns blank screen. It might not work, but hey! give it a try!

Also, try to look Here or Here, it says about flashing firmware.