Why can't I set up an email account on the unit using my personal Gmail address?
Most likely the app used has been tagged as not secure by Gmail and is therefore blocked. Please follow the steps below to lower Gmail's security level, as most product-bundled apps don't support new Gmail authentication requirements. This does not mean the app presents a security risk.
Go to Google Account > Security > Less secure app access > Change it to ""ON"" to lower security level.