50" LG smart TV repair. A great score from e-waste! Here's how to replace flashing LED backlights 😊

As this TV is basically only about 5 years old and in excellent condition (except for being unwatchable due to flashing LED backlights!), I thought it was worth trying to fix the problem and save this nice TV from the waste-stream..
It's a 50" LG smart TV model 50LB5820, but I believe the process is pretty much the same for many models. Also, something interesting I discovered was that the default setting for the LED brightness is 100% - and this can lead to them burning out prematurely. A quick online search shows that this appears to be a fairly common LG problem which for many people means the death of their expensive TV. Turning down the LED brightness is an easy process through the menu (settings) button on the remote and you should then protect your TV from an early demise! 😊
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