1. AshtonReeves's Avatar
    Any help is appreciated.
    Done the factory reset. Deleted the cache. Still doens't work.

    Model number
    SM-T230NU
    01-05-2015 12:33 PM
  2. B. Diddy's Avatar
    Welcome to Android Central! Can you give more details? Are you saying that the wi-fi and Bluetooth switches don't even turn to the On position? Or that they turn On, then automatically switch Off on their own? Do the switches stay on, but no connection is showing?
    01-05-2015 01:34 PM
  3. AshtonReeves's Avatar
    Yes, the switches don't turn on. When I turns them on, the switches not changing color to green (it stays grayed out). It automatically go back to the lock position in few seconds on their own.
    01-05-2015 10:11 PM
  4. admira17's Avatar
    I have the exact same issue, it started four days ago.
    When I attempt to turn on WiFi, both blue tooth and WiFi icons turn to a graded out green then switches back off in a few seconds.Any suggestions as to how to fix this issue?

    Samsung Galaxy Tab 4 WiFi SM-T230NU
    01-06-2015 06:26 AM
  5. B. Diddy's Avatar
    It could be a hardware issue--perhaps a loose connection somewhere. Any recent drops or trauma?

    I sometimes hear of people who correct the problem by hitting the back of the tablet firmly (the Fonz approach, for those of you who remember Happy Days). If you're adventurous, you could try opening the back up and checking all of the connections yourself.
    01-06-2015 11:14 AM
  6. Andrea Newville's Avatar
    It could be a hardware issue--perhaps a loose connection somewhere. Any recent drops or trauma?

    I sometimes hear of people who correct the problem by hitting the back of the tablet firmly (the Fonz approach, for those of you who remember Happy Days). If you're adventurous, you could try opening the back up and checking all of the connections yourself.
    Yeah. Good advice. Not......

    Mine did the same thing. Hopefully, by now, you've already had the issue fixed but if not... Leave the phone powered on and remove the battery for a few seconds. Replace it and it should be working fine, mine did!
    03-31-2015 05:48 PM
  7. Ankit Agrawal3's Avatar
    Hit its back side with your palm.............it will work
    04-01-2015 12:40 PM
  8. Alber Sanchez's Avatar
    Help, please. Done the factory reset. Still not working. Tried gently hitting the back. Can anyone help, please?
    carl erickson1 likes this.
    04-22-2015 05:21 PM
  9. Jason Turner4's Avatar
    We are all talking about a tablet not a phone
    08-20-2015 09:57 AM
  10. mauriceNS's Avatar
    Hi I am having the same problem. WiFi and Bluetooth will not enable. Anybody have any ideas how to fix? Is there a configuration or software change needed. Or is it simply a hardware problem?? Please help!!
    10-12-2015 10:14 PM
  11. Tania Lugo's Avatar
    Fort the galaxy S4 I had the same problem I erase all the pictures I din't need and videos turn the phone off pluged in the computer usb port waited one hour turned back on while connected. Problem solve my wifi and bluetooth was on again
    11-11-2015 02:27 PM
  12. Gustavo Mascareno's Avatar
    Hi there Maurice!
    I´m having same issue than you. I´m trying to find out a rom to install over the stock one and see if it fix the issue.
    Please keep me updated if you could do anything else about this.

    Thanks a lot!
    11-17-2015 08:03 AM
  13. sendmean's Avatar
    Have same problem
    I install 4.4.2 official in my tab 3 didnt work
    something in the motherboard bec wifi card and BT antenna same location
    12-23-2015 08:52 PM
  14. Arthur Crudup's Avatar
    I tap my network connection and nothing happens.
    12-27-2015 11:37 PM
  15. Nkome9's Avatar
    The WiFi and Bluetooth buttons go off automatically on their own
    05-01-2016 02:54 PM
  16. seadge1's Avatar
    KitKat 4.2.2 on my Tab4 started doing the same thing. It's the wifi tab4 so I'm stuck. It looks like an update was installed that could have caused this?
    05-21-2016 10:34 PM
  17. Okosun Luckezo's Avatar
    The switches don't turn on when I turn them on, the switches not changing colors to green it stay grayed out. It automatically go back to the lock position in few seconds on their own

    I need a help please

    How can I solve this problem on my phone
    06-08-2016 09:41 AM
  18. Alfred Watts's Avatar
    You are required to replace a mother board which carries a dead chip for both wireless and Bluetooth
    07-16-2016 02:40 AM
  19. butterbeer's Avatar
    Hi,
    I had this problem on my Galaxy tab S. Did the factory reset etc with no success.

    I fixed it by using a usb wifi dongle connected to the tablet via an "on the go" OTG cable.

    My device recognized the usb dongle, and both Wifi and Bluetooth started working. Disconnected the adapter and the device kept working.

    Must have been a driver issue.
    09-26-2017 03:54 PM
  20. aeryel Douglass's Avatar
    Fort the galaxy S4 I had the same problem I erase all the pictures I din't need and videos turn the phone off pluged in the computer usb port waited one hour turned back on while connected. Problem solve my wifi and bluetooth was on again
    What model was your galaxy s4? Mine is SGH-M919N
    11-27-2017 04:25 PM
  21. SRi 130's Avatar
    i have same issue on samsung s8, both wifi and bluetooth greyed out , cant switch them on..sent it samsung for reapir..
    12-16-2017 12:53 PM
  22. Apollo_13's Avatar
    I face the same problem. And I think I found out how to fix it. For the problem on my Samsung Galaxy A8, at least.

    First type *#0011# on the Phone.
    When you type the 2nd # the screen will change to ServiceMode.
    Click More, and click WiFI.
    Click the Ping Test button. The result should Pass.
    And then restart the cellphone.

    The WiFI should be able to turn ON/OFF without problem.

    And to avoid the same problem to occurs again, keep the battery level. At least, never shutdown your phone without connected to charger.
    Should this problem occurs again, just repeat the steps.

    Good luck!
    12-19-2017 08:15 PM

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