Cannot download messenger error code 505, have followed these instructions but still not working. Do I need to have money in my prepaid accAor data to pay for download?
Yes you need to have data to download from the app store. You can also use a WiFi connection to do this. The error you are getting appears to be Google related and the link below might help with that.
Try to go to Settings>Apps>All, select Google Play Store, and Clear Cache/Clear Data, then Force Stop. Do the same for Download Manager. Now try again. If you have Facebook installed, try also Clearing Cache/Data from there, or uninstalling it completely and then reinstalling. Notepad++ Malwarebytes FileZilla