FAQs & Troubleshooting FAQ Search Results MFC-7440N Not your product? Search by FAQ ID number Search Back to FAQs & Troubleshooting. 2 Results 1.faq00100066_003 The error message "No Supported Devices Found" appears on the Brother iPrint&Scan (mobile device). 2.faq00100066_004 The error message "No Supported Devices Found" appears on the Brother iPrint&Scan screen (mobile device). FAQs & Troubleshooting