Vadim Kostylev

Recently been having issues with amazon app loading slow or not at all, decided to uninstall, went to lg store and its not coming up Any Idea? I also noted during issues amazon updated app version Webos 2.0 55UB850V

I am on [05.05.90] - how can i downgrade to older firmware and where an i download version 05.05.70 for 55UB850V