Prashanthds96
Level 1 (1 points)

Q: After updating to the ladtest OS my iPhone most time goes blank when I unlock it and does not recognize my finger print not show the passcode to enter. Screen just brightens up and stays blank.

after updating to the latest operating system on my iPhone 5s, often my screen goes blank and I am unable to unlock my phone. The phone becomes completely non responsive . Since I have the soft touch home button enabled I will either call Siri and ask to open an app which solves the issue or if I don't have Internet then the only solution is to switch off and then switd

iPhone 5s, iOS 8

Posted on Oct 15, 2014 3:25 AM

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Prashanthds96

Q: After updating to the ladtest OS my iPhone most time goes blank when I unlock it and does not recognize my finger print not show t ... more

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  • by pedro d,

    pedro d pedro d Oct 16, 2014 8:13 AM in response to Prashanthds96
    Community Specialists
    Oct 16, 2014 8:13 AM in response to Prashanthds96

    Hello there, Prashanthds96.

     

    The following Knowledge Base article offers up some great steps for troubleshooting issues with an iPhone not turning on:

     

    iPhone: Hardware troubleshooting

     

    Will not turn on, will not turn on unless connected to power, or unexpected power off

    1. Verify that the Sleep/Wake button functions. If it does not function, inspect it for signs of damage. If the button is damaged or is not functioning when pressed, seek service.
    2. Check if a Liquid Contact Indicator (LCI) is activated or there are signs of corrosion. Learn about LCIsand corrosion.
    3. Connect the iPhone to the iPhone's USB power adapter and let it charge for at least ten minutes.
    4. After at least 30 minutes, if:
      • The home screen appears: The iPhone should be working. Update to the latest version of iOS if necessary. Continue charging it until it is completely charged and you see this battery icon in the upper-right corner of the screen . Then unplug the phone from power. If it immediately turns off, seek service.
      • The low-battery image appears, even after the phone has charged for at least 20 minutes: See "iPhone displays the low-battery image and is unresponsive" symptom in this article.
      • Something other than the Home screen or Low Battery image appears, continue with this article for further troubleshooting steps.
    5. If the iPhone did not turn on, reset it while connected to the iPhone USB power adapter.
      • If the display turns on, go to step 4.
      • If the display remains black, go to next step.
    6. Connect the iPhone to a computer and open iTunes. If iTunes recognizes the iPhone and indicates that it is in recovery mode, attempt to restore the iPhone. If the iPhone doesn't appear in iTunes or if you have difficulties in restoring the iPhone, see this article for further assistance.
    7. If restoring the iPhone resolved the issue, go to step 4. If restoring the iPhone did not solve the issue, seek service.

     

     

    Thanks for reaching out to Apple Support Communities.

     

    Cheers,

    Pedro.

  • by Prashanthds96,

    Prashanthds96 Prashanthds96 Oct 16, 2014 8:19 AM in response to pedro d
    Level 1 (1 points)
    Oct 16, 2014 8:19 AM in response to pedro d

    Hi Pedro,

     

    thanks for the tip but I don't think that's the issue. My screen brightness up it just doesn't show the number pad to unlock nor detects my finger print and I am petty sure that my hardware is fine.

  • by AmishCake,

    AmishCake AmishCake Oct 16, 2014 8:56 AM in response to Prashanthds96
    Level 6 (9,388 points)
    Oct 16, 2014 8:56 AM in response to Prashanthds96

    I think you should try a reset:

     

    Close all open apps by double-tapping the home button, then swiping up and off the screen with the app window (not the smaller icon).

     

    Reset your device: hold down the home button along with the sleep/wake button until the screen goes black and you see the Apple, then let go. (No data loss)