So , if i understand , you are from India , and you have upgraded to Flyme 22.214.171.124G , and the Google Play Store is not working ? The problem you are facing is : Error retrieving information from server [RPC S-7 AEC-7] ? If so , go to Settings -> Other Account -> Remove your account , then go to Settings -> Apps -> All -> Search for Google Play store and Clear all data ! After that , reinsert your account in Google Play Store app , and try downloading again (if it’s not working , just try download again) . It worked for me ! Cheers !