What happened to a Samsung Blu-ray player that caused a 'crash and crash into an infinite reboot loop'?
Around the middle of June 2020, 'Samsung Blu-ray players had a problem and started to restart indefinitely', a series of reports all over the world. According to Samsung's research, this problem was found to be due to '
Here's why your Samsung Blu-ray player bricked itself: It downloaded an XML config file that broke the firmware • The Register
https://www.theregister.com/2020/07/18/samsung_bluray_mass_dieoff_explained/
Samsung Blu-ray Player boot loop caused by a single XML file-SlashGear
This time, it was a Samsung Blu-ray player released in 2015 that had the problem of crashing and infinite reboots. It seems that this Blu-ray player could also connect to the Internet and watch Netflix etc., and it was said that the Blu-ray player that was connected to the Internet was the one that caused the problem.
You can see how the Blu-ray player actually fell into an infinite restart loop by watching the following movie.
Samsung blu-ray player not working or reboots itself-YouTube
Shown is Samsung's Blu-ray player produced in 2015.
This Blu-ray player is connected to the display...
It started and the menu screen was displayed.
However, the screen suddenly blacked out and restarting started.
The screen reappears, but...
Also black out. Once a problem occurs, this will be repeated endlessly.
The issue was only seen on some Samsung products that were connected to the internet, and thousands of Blu-ray players in the world were crashing and restarting. There was also speculation on the Internet that it might be due to an error in the HTTPS certificate, but as a result of a survey by Samsung, it was found that this bug was caused by 'the XML file downloaded from Samsung's server'. Did.
Like many internet-enabled devices, Samsung Blu-ray players record user activity and send data to help improve Samsung products and services. Of course, the user's permission is required to send user data. However, it seems that Samsung Blu-ray players regularly download the latest version of XML files related to the data transmission system from Samsung's server regardless of whether the user has allowed the data transmission. ..
The problem was that the old Blu-ray player firmware couldn't properly handle the XML file downloaded from the internet, causing the main software to crash. The XML file in question is loaded immediately after the Blu-ray player starts up, so 'Restart' -> 'Load XML file' -> 'Crash' -> 'Reboot' -> 'Load XML file' -> 'Crash' It is said that the loop of has occurred.
An anonymous person familiar with 'Gray' who is familiar with Samsung's product pointed out that Samsung was not allowing the user to download the XML file and it was set to download automatically. It also states that it is 'a ridiculously stupid idea' about how to unconditionally read the downloaded XML file each time it starts up.
As of June 27, 2020, Samsung has fixed the XML file in question, so there is no new issue with the Blu-ray player. However, it seems difficult to fix Blu-ray players that have already entered an infinite reboot loop.
The Blu-ray player cannot be fixed by a firmware update as it will load the XML file in question and crash immediately after booting. Also, it seems that it can not be fixed even by connecting a USB drive, so there is only a way to fix it by deleting the XML file in question from the flash memory of the player directly.
Samsung offers a free repair service to users with Blu-ray players who have a defect.
Solved: Re: Blu-ray player power cycling whenever plugged ...-- Page 136-Samsung Community-1278935
https://us.community.samsung.com/t5/Home-Theater/Blu-ray-player-power-cycling-whenever-plugged-in/mp/1285080#M14987
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in Web Service, Hardware, Posted by log1h_ik