Method 1 can be employed by those who have a credit card attached to Google Wallet.
If you have attached your credit card to Google Wallet once to pay for Google Play apps and content, that might be a cause for RPC: S-7: AEC-0 error. To fix you need to follow the steps:
- Navigate Google Wallet link;
- Perform authentication;
- Remove the credit card attached to Google Wallet;
- Reboot Android smartphone;
- Check whether the error has disappeared.
If everything is fine, attach the credit card again.
Method 2 works for those who don’t have a credit card attached to Google Wallet.
- Go to Settings -> Application -> All;
- Find Google Play Store;
- Select "Clear Data" and "Clear Cache";
- Go to Settings -> Accounts -> Google and remove your account;
- Restart your Android;
- Create Google account again and login.
Method 3. Versatile.
- Go to Settings -> Applications -> All;
- Now, Google Play Store, Google Services Framework, and Google Play services customers have to perform the following steps one after the other:
B. Clear Data;
C. Clear Cache.
- Go to Settings -> Accounts -> Google and uncheck all boxes in Sync settings;
- Restart Android;
- Without launching any app go to Settings -> Accounts -> Google and check back all boxes in Sync settings. If Sync error appears, do ignore it.
- Restart your device again.
Hope that Error Retrieving Information from Server [RPC S-7 AEC-0] will not disturb you any longer.