19-06-2023 05:46 PM
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Hallo there
Why my QN90B cannot do update to firmware 1504 while this software present on Samsung website?
Is it because it is in Beta stage? I've read some other post this firmware breaks Local Dimming Zones 😞
Will Samsung destroy my TV? 😞
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16-07-2023 01:34 AM
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Or local dimming will break.
19-07-2023 02:08 AM
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MY NEW SAMSUNG TV is BROKEN BECAUSE OF FIRMWARE UPDATE BY SAMSUNG (1504) - now or 5 weeks I have had Local Dimming problem - NO LOCAL DIMMING IN THE TV Samsung 75QN91B - the Poland Centre even didn't prepare the form of the issue, they promise to call but they don't, or after the time agreed, then their reset didn't help (twice), each representatvie from the centre says something different (global problems (!?), bug, firmware, etc), the local service don't know what is going on, a guy arrived, looked at the tv and confirmed that there is a problem ! - for a while the local dimming returned (after he opened and closed the service menu), but after the tv was switched off from the mains - gone - this is in Poland - 5 weeks with a malfunctioning new tv (3 months old) - after two weeks I got information that the problem is registered, the same day the guy returned with a memory stick, didn't help - then after a few days they took the tv then after 5 days returned without repair - "maybe Korea will help with a new firmware update" - still nothing - they returned the tv - I got a document that the service problem is closed ! - DO NOT BUY
19-07-2023 11:44 AM - last edited 19-07-2023 11:48 AM
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No one from support came to my house. When I called support, they told me it is just a software bug that would be fixed with the next update.
To work around the local dimming issue until the next update arrives in (according to another user) mid-August, you can try the following steps, which kinda worked for me:
- In the settings, set the Smart Hub to display when the TV is turned on.
- Use Smart Calibration via your cell phone to eliminate the gray clouds.
- In the picture settings, set Local Dimming to Standard. (For me: Setting it to High caused the picture to lose all colors or go completely dark due to Local Dimming not functioning properly
When you unplug your tv or if you do a soft reset then you have to do the smart calibration again
Note: I am not affiliated with Samsung in any way, i am just a customer as you are. Therfore proceed at your own risk.
04-08-2023 03:16 PM
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How can you tell whether QN90B tv has older or newer motherboard.
04-08-2023 04:11 PM - last edited 04-08-2023 04:12 PM
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Check in settings which firmware Version Ur tv has
1020 or 1504 -> new motherboard
08-08-2023 12:08 PM
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New Version 1520.7 did anyone already update?
Is there the hue app and does local dimming work?

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