Samsung UE55D8090 Power On/Off

[Richi777]

Hello guys , i have problem with a Samsung UE55D8090
Always Power ON/OFF all 2-3sec. (Only see briefly SMART LOGO) before was problem TV start sometimes and working and now only restart always , eeprom was reset with SDA+Reset short with cable. reflow cpu and change Emmc still its same hope anyone can help me

Thanks in advance

[Diah]

freeze with spray IC1302 , when it come to life keep freezing put it in STB and call service menu INFO - MENÜ - MUTE - POWER and from there do hard reset

[Richi777]

Thank you Diah but still same , possible need a good working dump , i programm only emmc with other working dump

[lotas]

Thank you Diah but still same , possible need a good working dump , i programm only emmc with other working dump

On this chassis, dump eMMC should have exactly the same firmware version as OneNAND.

[Richi777]

Thanks guys for help i understand , can anyone send me dump ?
would be very nice

[Diah]

i would think you did testing the LED BL by unplug main from PSU... or?

[lotas]

can anyone send me dump ?

What software version do you have?

[Diah]

trouble shooting... see how you can run fimware from standby mode..
this link had 26 dumps of samsung TV hope yours there

[Richi777]

Version is 1018.0 on emmc , i try unplug cable from PSU no backlight

[lotas]

i try unplug cable from PSU no backlight

In these models (D7000, D8000), the backlight will not work when the motherboard is turned off, most likely your backlight is faulty, if the firmware is faulty, your TV should work for 10-15 seconds, then a restart occurs, if the backlight is not working, then the restart occurs after 3-5 seconds (after the Samsung splash screen). So you need to check the backlight first.

[Richi777]

Iam back and have change backlight but still its same
Last option is write a good dump , if anyone can help with that i will be appreciative

Best regards

[lotas]

You need to know exactly what software version you have now, what is written on the emmc tag is not accurate, since the TV could be updated several times over the network and the software version will change, do you have time to enter service mode?

[Richi777]

Have download emmc dump from gsmforum.ru without nand dump , tv always reboot 2 second 😅

[lotas]

But you need to know what version of the software is currently installed on TV (1018,1019,1021)
I have 1018.1, 1019.2.

[Richi777]

Have 1018 on emmc

[lotas]

I gave a link in a personal message to the dump eMMC section USER ver. 1018.1

[Richi777]

Thanks a lot lotas

[lotas]

PM full dump 1019.2 (eMMC, OneNAND, EEPROM)

[Richi777]

Hello guys now iam back from holidays and found little time for programm for new Onenand+New Emmc
THANKS User lotas who help me 😁 Tv now start but approx 10sec he going off .Service Menü also try factory reset without Sucess.

[lotas]

So maybe your OneNAND has bad blocks and the dump data ends up on these blocks...