Black screen 10 seconds after reboot with 3.4.0.24

REPRODUCIBILITY (% or how often): always
BUILD ID = OS VERSION (Settings > About product): 3.4.0.24
HARDWARE (Jolla1, Tablet, XA2,…): Xperia X
UI LANGUAGE: Russian
REGRESSION: (compared to previous public release: Yes, No, ?): Yes

DESCRIPTION:

After firmware update device shows enter PIN and after 10 seconds gets black screen. Black screen is lighting. After charge connecting there is information on top about charge, but the screen is still black.

PRECONDITIONS:

Update previous firmware.

STEPS TO REPRODUCE:

  1. update firmware
  2. reboot device
  3. reboot again

EXPECTED RESULT:

device is working

ACTUAL RESULT:

black screen

ADDITIONAL INFORMATION:

(Please ALWAYS attach relevant data such as logs, screenshots, etc…)

Helped removing Phonebook like is described here: The screen goes black and that's it