A. 1. Ensure you are entering the correct username and password. If forgotten, use the 'Forgot Password' option to reset it. 2. Clear the app cache by going to Settings > General > iPhone Storage, selecting F1 TV, and choosing 'Offload App'.
B. 1. Check your internet connection to ensure it is stable when logging in. 2. If issues persist, try uninstalling and reinstalling the app to reset any account-related settings.