1. SaraKlaus3's Avatar
    Hello guys! I have been having this problem for a week now
    When the phone is one home, recent, back buttons do not work at all
    Power button can only put the screen to sleep but not wake it and i can switch on the phone just fine
    I tried using an app to wake it through proximity sensor it only vibrates to show the app is working but can not wake the screen
    Volume buttons only work when media is played otherwise not responding

    as i said i can boot to recovery or download mode with home , power and volume buttons just fine and when in recovery (TWRP) everything works fine.. I can use all home and back buttons
    Also when phone is off and connected to charger.. I can check the battery percent by pressing home button just fine
    I can use volume buttons to go or cancel download mode just fine
    The code *#0#* shows power and volume test success but not home,recent and back
    The problems happen when the phone is booted up
    Some apps like back button works and they are what i'm using to go home back and recent

    What i tried
    Hard reset
    Flashed new stock rom with odin though seemed like it was just updating had to wipe os first with twrp
    Flashed multiple custom roms
    Flashed other j7's backup os to my phone

    They all didn't work and i know it is not hardware because they work just fine when phone is off , on recovery and on download mode

    Please, please help me.. It has been a week now and it hurts me i have to reboot my phone every time i receive calls because screen can't wake up and also keep it awake all the time to avoid removing the battery to reboot
    10-19-2017 12:02 PM
  2. B. Diddy's Avatar
    Welcome to Android Central! Does it also happen in Safe Mode? https://support.t-mobile.com/docs/DOC-30290
    10-21-2017 12:38 PM
  3. SaraKlaus3's Avatar
    https://www.sammobile.com/forum/showthread.php?t=39531

    thank you for your support but after the discussion from that link my problem was solved
    B. Diddy likes this.
    10-21-2017 12:44 PM

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