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Support Headset mode stays on , when they are not connected

Discussion in 'Android Help' started by Andrea Silva, Apr 26, 2016.

  1. Andrea Silva

    Andrea Silva Guest
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    I'm studying electrical engineering, today I was doing a circuit project and I connected my cellphone to a jack and the jack to a circuit. Aparently voltage enter by the jack and now my cellphone is stuck in headset mode. I tried taking out the battery, slowly connecting and taking out the jack, blowing it with a hair dryer in cold for 30 seconds, I cleaned it with a Q-tip and nothing worked. Someone nows what can I do ?
     

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  2. lunatic59

    lunatic59 Moderati ergo sum
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    If you applied voltage to the headphone jack, you most likely burnt out a circuit, or fused one closed. I don't think there's much you can do other than replace it. What kind of phone is it?
     
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  3. mikedt

    mikedt 你好
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    Sounds very much like something, probably a chip got fried when you applied voltage to the headset jack connections. Which very probably means a replacement logic board or module will be required. Could try a warranty claim, and just say it went like that. :thumbsupdroid: There's no obvious splat marks visible is there?

    Something I learned with electronics years ago, is that a semiconductor(usually an expensive or irreplaceable one) will blow much faster than any traditional fuse can.
     
    #3 mikedt, Apr 26, 2016
    Last edited: Apr 26, 2016
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