Videos not playing and no sound
I have got a iphone 7 brought in for audio ic issue. While given the customer a spare phone to use whilst I dont the repair. She set it up from her iCloud backup, after doing that the same issue with sound was on it. Phone had been working fine till then. I took a look at her phone and saw that the speaker was not greyed out. But no audio played either loudspeaker or ear speaker. Also videos wont play at all. I have reset both phones but both have same problem after setting up. I am guessing its software and not hardware issue but what? I have an old iphone 6 as well that I put her back up on and the same sound issues come onto that phone, despite no issues before. Please help.
Is this a good question?