samsung galaxy s3 mini downloading error [rpc:s-7; aec-0 xc63]

[AC Question]

i cannot download from play store using my samsung galaxy s3 mini.

 

[B. Diddy]

Welcome to Android Central! Does this happen on both wi-fi and mobile data?

Go to the App Manager, select Google Play Store, and Clear Cache/Clear Data, then Force Stop. Do the same for Download Manager. Now try again.

If that doesn't work, then go to Settings>Accounts, remove your Google account completely, then add it back.