Troubleshoot: iPhone 6P receiver no sound during calls – share phone repair guide and provide phone repair tools (China phonefix team — diyfixtool.com / ecufixtool.com)
iPhone 7 7 Plus audio ic repair, no sound, no voice recorder, no mic in calls | eBay
iphone 6s no sound audio ic replacement hamilton new zealand - YouTube
iPhone Speaker Greyed out During Call? Try 11 Fixes