i try to install lineageOS and got a black screen

Hello i have a sony xperia Z1 and try to install lineageOS. I follow this guide : wiki.lineageos.org/devices/yuga/install
when i try :

Code:
adb push twrp-x.x.x-x-yuga.img /sdcard

bash say permission denied. But previously i have

Code:
Bootloader unlock allowed: Yes

As i am totally new, i try to restart all the install instruction in bash with root access # (command su).
And now a i have a black screen and adb doesn't work

Code:
:/$ adb shell error: no devices/emulators found

but it seem that fastboot mode is ok because i can flash rom

Code:
:~$ fastboot devices BH915GK90D fastboot :~$ fastboot flash boot twrp-2.5.0.0-yuga.img target didn't report max-download-size sending 'boot' (9038 KB)... OKAY [ 0.357s] writing 'boot'... OKAY [ 0.604s] finished. total time: 0.961s

After that if i try to reboot to the TWRP recovery:

Code:

:~$ fastboot reboot rebooting...

finished. total time: 0.052s :~$

the notification light turn red, off, red, off, green and after off.
So i got a black screen.
If i press the power button, nothing happen.
So i anyone could help me ... Thank you in advanced.

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