iPhone 4 Loudspeaker near Mute even after replacement
Well after successfully Replacing my IPhone 4 screen everything worked out successful except the loudspeaker is near mute. You literally have to place the phone in your ear to hear the faintest of sounds.
I first suspected either a bad Connection or a fried loudspeaker. Unfortunately it's neither since I have another logic board I swapped them out and the sound worked perfectly thru the loudspeaker.
-Tested Another logic board on the speakers & sound worked so it's not the speakers.
- cleaned logic board & checked for bent connectors and dust.
- reset all settings and tried manually editing speaker sound settings. No effect.
- checked connections several times and made sure they were on tight.
- tried replacement USB/flex cable
- replacement speakers
- no it's not an head phone jack issue tried that also and I'm familiar with it since 4 of my iPhones suffered from that issue. Plus speaker wouldn't be working.
I can only come to one conclusion that its a hardware issue or since swapping only the logic board out allowed everything to work perfectly.
It's not isolated sounds- ringer, alarm, ringtones, music, speaker, and system ui sounds or anything else that might work from the speaker sound mute.
- Note - volume buttons do raise and lower the faint sound of the speaker when pressing it hard against my ear. But after going down 1/4 it goes mute.
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