The down volume button on my iphone 5 doesn't work unless pressed really hard but when I turn my phone on and off it works perfectly for like 5mins then goes back to not working is it ios 7 or my phone
Open Settings, then Sounds.
Under ringers and alerts, adjust the volume with the slider and see if problem persists.
Also, maybe toggle Change with Buttons off and then on.
The down volume button on my iphone 5 doesn't work unless pressed really hard but when I turn my phone on and off it works perfectly for like 5mins then goes back to not working is it ios 7 or my phone
Is take the phone back to apple. Check your warranty.