Couple days ago I tried to install TWRP on my Z4 Tablet, which was ALLOWED YES and I unlocked the bootloader by using the guide on Sony Website. but I failed to install TWRP I always had this Error: waiting for any device. So I tought the problem would be my PC Windows 10 so today I decided to install the TWRP on my Tablet by on Linux Debian (Kali) and I had this error again so I checked *#*#7378423#*#* and I saw this: Bootloader Unlock Allowed : NO it just turned from Yes to No. And yes I am sure it was 100% at the begining YES. And the USB DUBBING was on all the time. I need your help. I really need the TWRP.