Android App Install Error code 505

[Alan Medic]

Anyone know why this happens and how to overcome it? It appears to have no problem with other Apps but when it comes to Facebook Messenger it won't allow it. I've read about this code but haven't found a way to overcome it or at least one I understood.

[Alan Medic]

This thread is bloody interesting I tell ya. I've even had a tweet from the phone manufacturer.