Iphone 5 speakers make static noise when playing audio?

I have jailbroken my iphone 5 and downloaded something called volume amplifier. It has worked well but today I turned it up to where it was to 200% and then I turned it down because the sound was very annoying and loud, after that I tried to play a game and it made a huge static sound as if I still had it on amplifier, I deleted it and it's still doing the static noise. The speakers for when you talk or answer calls but the bottom speakers are just static and it's getting annoying any answer please help!

Hold down home and power button for about 5-10 seconds and keep holding it until your phone reboots with an Apple Logo. This is known as a hard reset and usually fixes most issues.

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