Hi I have created a developer account, I am trying to use those credentials to sign into the Developer mode application on the TV but I am unable. Please can you advise.
Have you checked the Show password? If the problem persists, please send the following to developer@lge.com:
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Special characters used in your password:
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TV model name: (You can check this in the Settings > Support > TV Information menu.)
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TV software version: (You can check this in the Settings > Support > Software Update menu.)
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webOS TV version: (You can check this in the Settings > Support > TV Information menu.)
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Region:

