> “Admin”
> “System”
> “Configurations”
> Click "Enable" button for the "amazon-s3" configuration
> "Admin"
> “System”
> “External Services”
> “External Services - S3 Amazon Service Configuration”
> Click “Edit” button
> Update all values of s3_access_key, s3_secret_key, and s3_bucket_name
> Click "Submit" button