Can't get out of rescue mode. - Power + volue +/- don't work

[Helhound0]

hi all.
My friend's P8 Lite is stuck on rescue mode since yesterday and i'm trying to walk her through flashing factory firmware on it.
Fastboot and ADB devices don't return anything (Using minimal ADB and fastboot, and correct device driver installed in Windows 10)
Pressing the button combinations results in the same screen after reboot.

Is this device hard bricked? How can i boot to recovery from this mode?

Picture related:

https://imgur.com/5EfJGKY

 

[Aalesund]

Maybe it's too late but here is some tip:
Press the Power button till the phone turns off.
Connect the phone via a USB cable to the PC and then Press and hold Vol Up + Power and you can enter into eRecovery mode. Then you can connect to WIFI and download the latest stock firmware from Huawei.

Tips:
Vol Up + Power = Recovery (Stock or TWRP)
Power + USB Cable to PC = Bootloader
Vol Up + Power + USB cable to PC = eRecovery mode (very useful if you brick Huawei phones or the easiest way to flash Stock rom if you're on the Custom rom)