How do you check that pins 1 and 4 are shorted?How do you check that pins 1 and 4 are shorted? I have the same problem my customers iphone 4, I took the logic board apart a...
iPhone 4 logic board loud speaker is distortedThe loudspeaker (as in the bottom speaker) becomes distorted when the volume is raised further than half way, I put the logic...
Answer to: iPhone 4 Logic Board Speaker ProblemHi the loudspeaker on my phone becomes muffled/ distorted after half way on the volume, put the logic board in a fully working iPhone 4 and had the same problem, iPhone 4 logic board making distorted sound from the loudspeaker after half way on the volume tab, any ideas? And where is the 'underside' of the phone?