Toshiba Satellite Z930 screen backlight issue after replacement.


Oct 24, 2016
Dear Sirs & Madams,

I recently stood on my wife's laptop, a Toshiba Satellite Z930-14F.
It still worked, but the screen was cracked, making the top left corner illegible with a number of horizontal and vertical lines flickering at times.

I ordered a first replacement screen which I swapped out and worked perfectly besides the physical surrounding bracket being too wide meaning the plastic screen bezel no longer fit.

I sent it back and reinstalled the broken which still worked.

I received a second screen which physically fit, but once I had installed it in the same manner as with the previous screen the backlight failed to work. I could see the content was vaguely visible, but no light.

I decided to put back the broken screen, but to my surprise, the backlight no longer worked on this screen either.

Does anyone have an idea as to what has happened here? Also what may be a possible fix?
Or steps of diagnosis?

Admittedly I did not ground myself before the screen fix, and, perhaps worse, I did not remove battery as it is built in and locked up behind a secure torx screw.

Thank you for your help & wisdom,


Mar 14, 2017

I have same problem with my Toshiba Z930. Can you please be more concrete, when you say:
It sounds like the backlight got damaged at some point in your install/uninstall procedures. It happens. If that is the case, then the backlight will need to be replaced.
Is the problem with the new LCD or on the Toshiba-mainboard or software-problem?
Thanks in advance! Kind regards, Heiko
Thread starter Similar threads Forum Replies Date
Dayo2670 Laptop Tech Support 0
Andy craepher Laptop Tech Support 0
Mirandarenee Laptop Tech Support 6
I Laptop Tech Support 0
GoogleThread25 Laptop Tech Support 1
ftothn Laptop Tech Support 5
BenKnack2468 Laptop Tech Support 1
R Laptop Tech Support 3
A Laptop Tech Support 7
mfenton27 Laptop Tech Support 4
A Laptop Tech Support 11
J Laptop Tech Support 1
T Laptop Tech Support 3
J Laptop Tech Support 1
C Laptop Tech Support 2
A Laptop Tech Support 8
S Laptop Tech Support 2
G Laptop Tech Support 1
A Laptop Tech Support 1
T Laptop Tech Support 1
Similar threads
Question Toshiba satellite e205: lights are on, keyboard presses makes beeps and the screen has a typing bar
Discussion Toshiba satellite turns on to black screen when on ac without pressing power button after disassembly, solution?
Solved! Major problems withToshiba Satellite
Question Toshiba Satellite C 55 Flickering Screen
Question Toshiba satellite laptop c55d-b5212 power on but screen not showing
Solved! Toshiba satellite L850-1P2 laptop boot problem
Solved! Toshiba satellite a505-s6033 red/black pixels and the blue screen
Solved! My toshiba satellite c855 screen does not turn n and the communication light does not turn on after dissasembly.
Solved! Toshiba SATELLITE Screen Shuts Down
Solved! toshiba satellite a665-s5170 stuck on blank screen with top left cursor after bios screen
Solved! Toshiba Satellite l500 black screen until windows loading
Solved! Toshiba Satellite S55-C5274 is stuck on "Toshiba Leading Innovations" screen.
Solved! I have a toshiba satellite. it's stuck on white screen, then the keyboard stopped working. I hooked it to my desk top monitor.
Solved! My Toshiba Satellite turns on but screen stays black
Solved! toshiba satellite 755, no power / fan, 2 white lights, orange light charged then turns white, blk screen
Solved! Toshiba Satellite - no boot no bios
Toshiba Tecra A8 / Satellite Pro A120 frozen on boot screen "Missing Operating System" WINDOWS 7
Toshiba Satellite C850 black screen sometimes on but no display just black display
Having difficulty finding a replacement screen for my Toshiba Satellite L875D-S7332
toshiba satellite l55t a5290 Stuck on "toshiba leading innovations" screen