I recently got my G4 from Verizon. I love my phone, and I recently updated it to the latest updates(marshmallow etc,.). I have a problem though, When I install certain applications I always get this error; "App I'm trying to install" cannot be installed. Try again. Error code "-505". Now, for some strange reason, 90% of the time its amazon apps. I cannot install the alexa app for example without getting that error. Same with updating, my amazon music app example(the app is built in). Anyone have any experience with this? I did a factory reset and wiped the system cache and its still giving me the error. Any ideas?