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Samsung Galaxy J7 Wi-Fi switch is greyed out or disabled [Troubleshooting Guide]

  • Read and understand why a mid-range smartphone like the #Samsung Galaxy #J7 may encounter bizarre issues like greyed out Wi-Fi switch or disabled services. Also learn how to troubleshoot your device when this problem occurs.

There are times when some services on your phone crash for some reason. When they happen, some functions may be disabled without you knowing about it. Among the most common issues of this kind is the Wi-Fi switch that gets greyed out or disabled. It’s been happening since Galaxy S3 and we’ve actually encountered similar issues like disabled mobile data switch, missing settings app, etc.

In this post, I will tackle an issue involving a Samsung Galaxy J7 whose Wi-Fi switch got disabled or greyed out for some reason. We will try to look into the possibilities why this problem even happened. So, if you own this phone and are currently experiencing this problem, feel free to report it to us so we know if the problem is widespread or you may continue reading below for our troubleshooting.

Before anything else though, if you have other issues with your device, then visit our Galaxy J7 troubleshooting page for we have already addressed several common problems with this phone. Odds are that there are already existing solutions to your problems so just take time finding issues that are similar with yours. If you can’t find one or if you need further assistance, feel free to contact us by completing our Android issues questionnaire. Please provide us with as much information as possible so that it would also be easier for us to troubleshoot the problem. Don’t worry as we offer this service for free, so all you have to do is give us sufficient information about the problem.

Troubleshooting Galaxy J7 with disabled Wi-Fi switch

As I said earlier, this problem has also been happening with the S3 before and based on the reports of our readers, the problem is actually easy to fix. It may fall as a minor glitch either on the system or the hardware and there’s always something you can do about it but before we jump to our solution or troubleshooting guide, here’s one problem that best describes this issue…

Problem: Hi guys. My name is Mark and I own a new Galaxy J7 I bought a couple of months ago. It’s not as fancy as the S7 Edge but definitely does a good when it comes to my needs such as emails, facebook, twitter, browsing, texting and calling. The thing is that recently, I noticed that I could no longer connect to my home Wi-Fi. I have subscribed for mobile data but when I’m at home, I have to be able to connect to my Wi-fi since the data signal in my area isn’t that good. But I noticed that the switch is kind of disabled like I cannot turn it on or off, it’s greyed out. As a result, I am forced to use mobile data when I’m at home since Wi-Fi isn’t working. Is there something I can do about this? Thanks a lot!

Now let’s go back to our troubleshooting…

Step 1: Boot your Galaxy J7 in Safe mode to know if the switch is still disabled

This will tell us immediately if the problem is caused by by one or some of your third-party apps. So, try to follow the steps below to reboot your phone in safe mode:

  1. Power off your Galaxy J7. Press and hold the Power key, tap Power off and then touch POWER OFF to confirm.
  2. Press and hold the Power key past the screen with the device name.
  3. When ‘SAMSUNG’ appears on the screen, release the Power key.
  4. Immediately after releasing the Power key, press and hold the Volume down key.
  5. Continue to hold the Volume down key until the device finishes restarting.
  6. Safe mode will display in the bottom left corner of the screen.
  7. Release the Volume down key when you see ‘Safe Mode’.

If the Wi-fi switch gets enabled in safe mode, toggle it on and off and then try to connect to your home Wi-Fi. After a successful connection, test your phone to see if it can browse the web and if so, leave the switch turned on and then reboot your phone in normal mode and then try again. If the switch is still disabled, then there’s an app that’s causing the problem find that app and then uninstall it. You may need to uninstall more than one app to fix the problem. However, if the problem still persists after uninstalling suspected apps, move on to the next step.

Step 2: Delete the system caches as some of them may have already been corrupted

The system create caches for every service and operation in your device including radio reception. There’s a chance the cache for the Wi-fi got corrupted for some reason. Since you don’t have access to individual caches, you need to delete all system cache so that the firmware will create new ones that are completely compatible with it. Reboot your phone in recovery mode and then wipe cache partition. Here’s how…

  1. Turn off the device.
  2. Press and hold the Volume Up key and the Home key, then press and hold the Power key.
  3. When the device logo screen displays, release only the Power key
  4. When the Android logo displays, release all keys (‘Installing system update’ will show for about 30 – 60 seconds before showing the Android system recovery menu options).
  5. Press the Volume down key several times key to highlight ‘wipe cache partition.’
  6. Press the Power key to select.
  7. Press the Volume down key to highlight ‘yes’ and press the Power key to select.
  8. When the wipe cache partition is complete, ‘Reboot system now’ is highlighted.
  9. Press the Power key to restart the device.

After this and the switch is still disabled, the next step will fix it.

Step 3: Perform the Master Reset on your Galaxy J7

Unless the firmware got corrupted or some of the system files got deleted, this problem is actually a simple one and can be fixed by a reset. But the reason this procedure always comes at the end is because of the hassle the user will have to go through in backing up important files and data before the reset and restoring them after. Now, here’s how you reset your Galaxy J7:

  1. Back up data on the internal memory. If you have signed into a Google account on the device, you have activated Anti-theft and will need your Google credentials to finish the Master reset.
  2. Turn off your Galaxy J7.
  3. Press and hold the Volume Up button and the Home key, then press and hold the Power key.
  4. When the device logo screen displays, release only the Power key
  5. When the Android logo displays, release all keys (‘Installing system update’ will show for about 30 – 60 seconds before showing the Android system recovery menu options).
  6. Press the Volume down key several times key to highlight ‘wipe data / factory reset.’
  7. Press Power button to select.
  8. Press the Volume down key until ‘Yes — delete all user data’ is highlighted.
  9. Press Power button to select and start the master reset.
  10. When the master reset is complete, ‘Reboot system now’ is highlighted.
  11. Press the Power key to restart the device.

I hope this helps. Thanks for reading.

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