iPad Ipad 5 Left Speaker Hissing sound

[ai15]

So i was replacing the screen on an ipad 5 and the first time everything went perfect except the lcd had a deadspot. so i got a new screen replaced it again but except this time every time sound is played whether it be music or even the keyboard click there is a hissing sound coming from the left speaker. ive tried replacing the speaker but the sound still occurs. does anybody have an idea of what could be causing this. ive added a video below of the hissing sound.

 

[AutomaticApple]

So i was replacing the screen on an ipad 5 and the first time everything went perfect except the lcd had a deadspot. so i got a new screen replaced it again but except this time every time sound is played whether it be music or even the keyboard click there is a hissing sound coming from the left speaker. ive tried replacing the speaker but the sound still occurs. does anybody have an idea of what could be causing this. ive added a video below of the hissing sound.

View attachment 960780

Maybe you should try another LCD panel and see if the hissing still happens.

 

[ai15]

Maybe you should try another LCD panel and see if the hissing still happens.

just tried it with a different lcd and digitizer and still the same problem :/