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Brand new LG TV (WebOS 8x) WILL NOT stay off when turned off with the remote?  Out of the box, connected to internet, seems to have been updated, and working fine.  But when I hit the power off with the remote, the TV reports 'Life is Good' seems to turn off, i.e. go into standby, and then a few seconds later, turns back on.  If the device connected to the TV on the last active HDMI port is OFF, I get the No Signal warning.  So I know the active HDMI input is not generating any signal.  I want to believe that any other device on any other HDMI port might be an issue? But then the TV would switch to that HDMI port, no?  This is really an issue!  If I use the phone app I can turn off the TV and it seems to stay off, at least does not come back on in a few seconds like the remote?  If I send 'standby' via HDMI-CEC, that seems to work as well, the TV seems to stay in standby mode.  This a bug?

My Smart TV LGwebOS TV OLED55 B8PLA with software version 05.50.15
It is impossible to install some apps for regional TV channels because the browser is incompatible. How do I update the browser or how do I install a different browser on my TV ? Downloading a file is not supported.  Automatic update is active. Thanks in advance.

LG Offers Greater Versatility Across a Wider Range of Products From
Third-Party Brands With Latest Upgrade to Its webOS Ecosystem

SEOUL, Nov. 17, 2023 — LG Electronics (LG) announced that the new webOS Hub 2.0S for third party brands – released for TVs in September – is branching out this month to include smart monitors, responding to the expanding smart TV market as well as the highly increasing number of single-person households. While smart TVs are catered to family households, the rising trend of single-person households has led to a significant demand for smart monitors, making webOS Hub 2.0S, which offers both convenience and a large variety of content, a great choice for smaller screens as well.
The new webOS Hub 2.0S presents greater hardware adaptability, broadening its availability beyond smart TVs, and is able to provide more options for third-party brands to offer a customizable user experience.
A new addition on the main home UI screen of webOS Hub 2.0S is the Card App Home Hub & Music, granting access to an abundance of services with one remote click. Featuring a smart home ecosystem dashboard, users can customize control capabilities with supportive device status monitoring for TVs and IoT-based devices.
Designed to meet a diverse range of user needs, the webOS Hub 2.0S offers comprehensive services with a variety of features. Users can easily access music from popular apps such as Spotify or music stored in USB drives via the Card App Music feature. Functions such as Remote PC allow easy access to content for hybrid work, ensuring users a seamless transition to office PCs or laptops. The platform enables convenient video calling and conferencing with support for USB cameras* and encourages productivity with an elevated home fitness experience. To cater to students and working professionals, webOS 2.0S allows accessibility to streaming services like Netflix and YouTube. Compatibility with Apple Home and AirPlay* enables users to easily and securely control compatible smart home accessories and effortlessly stream movies, music, games, and photos using their Apple devices as well.
Affirming its exceptional services and unparalleled versatility, LG has diligently bolstered its market presence over the past three years by integrating the webOS Hub into various third-party products with over 300 brands joining in this exciting endeavor.
Following the success of the company’s approach, LG is expanding the webOS Hub platform to a broader range of smart TVs and smart monitors, solidifying its presence in the industry with a commitment to providing seamless access to the webOS Hub experience across multiple devices.
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*Apple Home and AirPlay, USB camera features are only available on the 1.5GB model equipped with webOS Hub 2.0S.

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Hello.
 
Some tutorials explain how to do it. 
We first need to root the TV with scripts such as RootMyTV, and then install dts_restore. 
Both tools are free and available at github.  
I'm not writing the links because I don't know if it's allowed in this forum and because I take no responsibility. 
 
My question is:
Has anybody tried this process? Does it work? 
The documentation says if you have any problem you can just factory reset the TV, but I don't dare to do it. 

I output the sound from my LG 75UJ657A to external speakers through a bluetooth connection, but it doesn't automatically connect to the bluetooth device when I turn the TV on. Whenever I cycle the TV off and, then, back on, the TV asks if I want to connect to the bluetooth device, and I have to select "yes" with the remote. My smart phone automatically connects to all the bluetooth devices I've set it up with. When I start my car, my phone connects automatically to the car stereo/phone system, and it does the same with other bluetooth speakers I have. This is what I want my TV to do.
How do I get my LG 75UJ657A to automatically connect to the bluetooth device I've set up with it?