I have an old phone (LG Optimus V) running Android 2.2.1. I recently took it out and would like to download some apps on it. It automatically updated Android Market to Google Play by itself, but for some reason, it wouldn't let me download anything at all.
I keep getting two errors:
Google Talk authentication failed
Error retrieving information from server. [RPC:S-7:AEC-0 4SL6-CLLI-5VT2I]
I have tried everything:
Clearing all data for Google Play and Google Services Framework
Uninstalling updates for Google Play
Restarting the phone
Resetting the phone to default factory settings
Creating a new Google account
I'm still getting the two errors above, and I can't download anything. Is there anything else I can try to resolve this problem?