MB is mine, as I replaced capacitors before 🙂 So it is sw solution. Contact Samsung support, they tell u where u get free of charge repair. ... View more

HT-J4200 fixed after 1 week in TV-AV ELECTRONIC ŽILINA, SLOVAKIA Current firmware version same as before failure ,  ver 1017.3. ... View more

Those of U who have devices fixed back, can you please check the sw version ? I would like to know, if they flashed back some old dated firmware and switched off the auto update server, or if they compiled some new sw with fix. Thx ... View more

HT-J4200 , just called Samsung Support Slovakia, they know about the problem, but do not know the solution yet, recommended to wait few weeks and call again 😞 ... View more

NOTHING SOLVED ! ! ! GIVE CUSTOMERS SOLUTION OR REMOVE SOLVED STATUS ! ! ! ... View more

Probably not... If you disconnect device from power and from network, it has no clue what time/date it is. At next power on without LAN, it should not have problem, bcause it dont know it has expired. Or am I wrong? ... View more

Mine on internet too, it must have been some background kill update. By the way, my model HT-J4200 does not have anymore USB as a input choice if I press INPUT button, it scrolls only RADIO/BT/DVD/AUX , no more USB I have read some time ago, that SMSNG makes in TVs clock counter, if you have for example 10000 hours, processor get overvoltage and burn itself.Probably something similar is here.... ... View more

I ALREADY REPLACED ALL CAPACITORS ON POWER SUPPLY, NOT HELPED, THEN REPLACED ALL ON MAIN BOARD        As electrician, I do not think there will be easy fix for us, as the device continuously reboots, so it can not get IP address and start to download anything now from internet as a fix. Same for USB.  The only way will be some kind of USB emergency update, if sw engineers have it in this device. ... View more

WTF ??? 100 people with the same problem in 2 days ??? I have same problem with HT-J4200  ... View more