1. Android Central Question's Avatar
    Whenever I lock my phone, 1 or 2 seconds after the screen going black, it is vibrating like I get a notification.
    But I do not get one.
    I have tried restarting the phone.

    Device:
    Galaxy A5 (2017)
    Android 8.0.0
    06-12-2019 02:41 PM
  2. belodion's Avatar
    Was there a time when it didn't do it?
    06-12-2019 04:20 PM
  3. Quini98's Avatar
    It is pretty consistent.
    And whenever it vibrates and I unlock with my finger it shows this. https://imgur.com/a/QDEWrJk
    (Phone unlocked with fingerprint)
    But normally it doesn't show that.
    06-12-2019 07:41 PM
  4. belodion's Avatar
    It sounds as if it's restarting then. I'm familiar with that phenomenon on the Lumia 1020 - fixed by switching off Bluetooth - but not on an Android phone. It may be a faulty Power switch. If it is that, it will need repair, but you could try flood-cleaning the button with alcohol.

    It may also be worth trying Safe Mode.

    I may also have misunderstood you: I assumed you meant powering off when you say lock. Am I wrong about that?
    06-13-2019 03:26 AM
  5. Quini98's Avatar
    I have tried restarting it and it doesn't fix it.
    Bij locking I mean that I press the lock/power button so that my phone locks itself and the screen turns off.
    When pressing the button again I have to give my code or fingerprint.
    06-13-2019 03:45 AM
  6. belodion's Avatar
    Ah, I see what you mean. I don't know why the vibration occurs. Adjusting the Lock Timer in Settings, Lock Screen - which is where it is on my phone at least - may be relevant.
    The link in your post above does not work for me, incidentally, although I don't think it's necessary.
    06-13-2019 07:12 AM

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