I have a LG G3, i previously had a Google Drive account added to the MyCloud app, had to factory reset my phone, was having some other issues with it. I have the Google Drive app, just was adding it to the MyCloud app to be simpler to access all my Cloud services. Just realized i could have named my post better. Didn't mean the Google Drive app. Just the MyCloud app, it won't let me add a Google Drive account to it, get the error 403, when i tap on the option to add a Google Drive account. Onedrive adds with no problem.