UE42F5370 - mainboard upgrade possible?

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brainless
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UE42F5370 - mainboard upgrade possible?

Post by brainless »

Hello!

After two years one of my UE42F5370 "died": first one HDMI input couldn't be used, a few days later the TV reacts very slow, on screen menus were unreadable and it reboots after a few minutes. Mainboard defect I thought.

I've got an used mainboard from an UE46F6470 and replaced my with it. Starts well, perfect picture... but it still reboots! Because I have two similar TVs I was able to change power supply and T-CON-Board. But only without back light panel off (cable off) there's no rebooting. So my question: no way to upgrade for changing mainboards from Serie-5 to Serie-6?

Thomas
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notengo13
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Re: UE42F5370 - mainboard upgrade possible?

Post by notengo13 »

brainless wrote:Hello!

After two years one of my UE42F5370 "died": first one HDMI input couldn't be used, a few days later the TV reacts very slow, on screen menus were unreadable and it reboots after a few minutes. Mainboard defect I thought.

I've got an used mainboard from an UE46F6470 and replaced my with it. Starts well, perfect picture... but it still reboots! Because I have two similar TVs I was able to change power supply and T-CON-Board. But only without back light panel off (cable off) there's no rebooting. So my question: no way to upgrade for changing mainboards from Serie-5 to Serie-6?

Thomas
maybe you will need to do some adjustment in Service Menu. (if you can enter there) change from F6470 to F5370 and try put the right Panel Type.
UE48H6640 T-MST14DEUC 2781.0 root latestH --> 2130.0 skypeRoot-->0000-->2115.3 "Skype refueled" Root
QE55QN93A - - >firmware T-NKM2DEUC-1805.4 (backup 1590.0) - - >update CURL60 Error --> CURL28 Error
brainless
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Re: UE42F5370 - mainboard upgrade possible?

Post by brainless »

Hello!

It is not possible to change to F5370. Only to F55xx. After this TV still reboots. Also there is no 42" panel listed in SM of the new board.
zoelechat
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Re: UE42F5370 - mainboard upgrade possible?

Post by zoelechat »

Did you try factory reset?
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notengo13
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Re: UE42F5370 - mainboard upgrade possible?

Post by notengo13 »

Try to acces extended service menu and look for "BOM Model" something like this and there you can change exact the model
UE48H6640 T-MST14DEUC 2781.0 root latestH --> 2130.0 skypeRoot-->0000-->2115.3 "Skype refueled" Root
QE55QN93A - - >firmware T-NKM2DEUC-1805.4 (backup 1590.0) - - >update CURL60 Error --> CURL28 Error
brainless
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Re: UE42F5370 - mainboard upgrade possible?

Post by brainless »

Well, I've made a factory reset before and now also have changed "BOM Model" to 5370 and now it's an "UE46F5370"...
https://www.dropbox.com/s/ip63kfsvgr8tl ... 5.jpg?dl=0
... but after a few minutes the TV turns off and starts again.

I've bought another mainboard from an UE39F5370. Hope this will solve my problem.
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Re: UE42F5370 - mainboard upgrade possible?

Post by zoelechat »

"after a few minutes" you say? Try to disable Watchdog in service menu :)
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brainless
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Re: UE42F5370 - mainboard upgrade possible?

Post by brainless »

It was already be disabled.
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juusso
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Re: UE42F5370 - mainboard upgrade possible?

Post by juusso »

log from exlink maight help to understand what`s exact went wrong.
LE40B653T5W,UE40D6750,UE65Q8C
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brainless
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Re: UE42F5370 - mainboard upgrade possible?

Post by brainless »

The second mainboard (UE39F5370) works fine after changing the display type. Maybe the other is just "not working".

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