IPhone sound and volume bar disappeared?

I got some snow on parts of my iPhone 4 earlier. The volume bar has disappeared. Youtube also. The speakers do still work though as when I go into sounds from the settings app, it lets me adjust the ringtone volume, which plays fine through the speakers.

I tried using the side volume buttons but It just comes up with the ringer logo with no increase/decrease bars.
I plugged the phone into speakers but there's no volume bar so no sound even out the external speakers.
Since the ringtone volume works through the phone speakers i'm guessing its a software issue that happened when the phone went in the water?

This could be a variety of things, so I have two potential solutions.

Steps:

1. Turn your phone off.
2. Blow compressed air into the connector port of your iPhone.
3. Brush inside lightly with thin non-shed paintbrush.
What we're doing here is removing foreign objects and dampness that may be causing it to misregister. If this doesn't work, I'd recommend going to ifixdirect. Ifixdirect does free diagnosis's, and will fix your issue for much less than the cost of replacement.

Whe I answer my iphone 4 I can hear the other persson but they can't here me, or they might hear me for a few seconds and then they can't

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