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Problem after root

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New member
Feb 28, 2018
Hello guys,

today I unlocked the bootloader on my Huawei P9 Lite. Everything worked great. When I tried to install supersu, I wasn't able to boot to the TWRP. I was keep trying to boot into the TWRP, but nothing happened, only
a red dot was shining like as if you have low battery and then it stucked. Now I cant power on mobile. Everytime if I hold power button, it vibrates then

this is shown and nothing happens. I tried to use volume up + power button but it happenes same thing, but volume down + power works normally.
I tried to do this https://forum.xda-developers.com/huawei-p9lite/help/original-service-rom-huawei-p9-lite-vns-t3688120 - but if I press volume buttons and power up, it just vibrate and nothing happens.

Sorry for my english, I am from Czech Republic.
Thank you for all responds.