Board Thread:Game Discussion/@comment-117.214.141.32-20150903083607/@comment-29265688-20171024233020

finally solved.

this is all what i did :

1. deleted real racing 3 (v5.5.0)

2. upgraded device ( iOS 10.3 to iOS 11 last version )

3. installed real racing 3 (v5.6.0)

4. turned celluar data ( LTE )

5. downloaded assets ( one by one )

(!) I've tried with Wifi and 3G but i couldn't download assets so i tried with LTE (4G) and worked.

and Thank you Amrosa for your suggestion.