black screen after updating

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olorin
Posts: 2
Joined: Tue Nov 21, 2017 11:47 am

black screen after updating

Post by olorin » Tue Nov 21, 2017 7:55 pm

Hello,
I tried to update my f6400 to the 0000 version and when the installation was finished when the TV was restarted,
the screen is black, it sounds but you can not see anything.

after turning it off as samsung told me and leaving it 30 sec off, now the TV turns on by itself and the screen remains black without being able to do anything, the remote does not respond and I can not turn it off

any ideas? :cry:

Thank you

zoelechat
SamyGO Moderator
Posts: 7938
Joined: Fri Apr 12, 2013 7:32 pm
Location: France

Re: black screen after updating

Post by zoelechat » Tue Nov 21, 2017 11:22 pm

Probably factory reset needed, often after downgrade to 0000. Even if "all black", quick enough, blindly you should have time to do it before TV hangs. Either:
-INFO+MENU+MUTE+POWER to reach service menu... then OK+OK+OK to reach and confirm reset
or
-Press EXIT on RC for 10 seconds.

Also the juusso's trick, in case backlight is off, can help to see something: light panel with a torch.
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olorin
Posts: 2
Joined: Tue Nov 21, 2017 11:47 am

Re: black screen after updating

Post by olorin » Wed Nov 22, 2017 10:58 am

nothing, I've tried the reset, and it does not do anything, it stays the same

I'm afraid it's going to touch me to call the official service to get it fixed

does not answer or the remote control

zoelechat
SamyGO Moderator
Posts: 7938
Joined: Fri Apr 12, 2013 7:32 pm
Location: France

Re: black screen after updating

Post by zoelechat » Wed Nov 22, 2017 11:21 am

You should have few seconds after bootup before rc stops to respond, hence be quick.

If no luck, better change mainboard yourself than ask Samsung, will cost you much less...
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