Two errors that refuse to be resolved, Google Play, Android 2.2.1 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?
Information pulled from
http://wikitechsolutions.com/1222/error-while-retrieving-information-from-server-rpc-s-3-aec-and-rpc-7-aec-0


  Method 1: Level: Easy



First we have to remove our Google account settings on this device. Go to: Settings > Accounts > Google > Delete Account.
Then, we will: Settings> Applications > All> Downloads > delete data.
Settings> Applications > All> Play Store> delete data.
Settings> Apps > All> Google Services Framework > delete data.
We turn off the device. Turn it on again.
Settings> Accounts> Add Account


If not then try


  Method 2


Please read carefully. If the download does not work from the device, you'll have to download it to your PC. Then copy it to the device, using the USB cable to a folder on the external memory (microSD).

The Facebook app is the one most commonly generating this error, so we will focus on that. If needed, changing app files can be applied to almost any application that is giving you this problem.

Facebook version 3.8 is what we want :

 Download Facebook 3.8 APK 

How to get downloaded APK files to update through Google Play Store


Enable installation from Unknown Sources


Settings> Security> and check the box for Unknown Sources option

Locate the APK file you downloaded using a file manager.
Open and install the APK file.


If installed version is newer than the downloaded APK, uninstall it &amp; reboot, then continue.

Open the application and login into Facebook with your username and password.
Close the application and reboot.
Open the Play Store &amp; check for updates.
Remove the check from step # 1, for added security.