Galaxy Note 5 won’t connect to wifi, mobile data stopped working after an update

Hello and welcome to another #GalaxyNote5 article. The issues we’re trying to address here are system update related so hopefully our suggestions will help those who may be having problems after updating themselves. Don’t forget that most issues following an update can be fixed by similar set of troubleshooting steps. This means that our suggestions here can be applied to completely different but still update-related issues.

If you are looking for solutions to your own #Android issue, you can contact us by using the link provided at the bottom of this page.

When describing your issue, please be as detailed as possible so we can easily pinpoint a relevant solution. If you can, kindly include the exact error messages you are getting to give us an idea where to start. If you have already tried some troubleshooting steps before emailing us, make sure to mention them so we can skip them in our answers.

Below are specific topics we’re bringing for you today:

Problem 1: Galaxy Note 5 won’t connect to wifi

Hi there. I am unable to connect to internet since yesterday, 25th Sep 6.00pm. All of a sudden, the WiFi connection lost. I could connect all the devices at home; they are working properly with WiFi. I haven’t downloaded any app for quite sometime and it was smoothly running. I restarted and did all possible attempts but unable to fix the issue. Kindly suggest. — Zaki uddin

Solution: Hi Zaki. Below are the troubleshooting steps that you should do to fix your issue:

Install updates

First you want to ensure that everything is updated. Be sure to check Play Store app and update all installed apps. After that, you then want to go under Settings>Software Update and check if there’s an available Android update you can install. Sometimes, new updates are meant to fix known bugs and if you’re lucky, it may also address the issue you’re having.

Restart to safe mode

Should installing updates won’t change anything, the next logical step is to see if wifi works when you block all third party apps. This is done by restarting the phone to safe mode. If you haven’t tried it yet, here are the steps:

  1. Turn off the phone completely.
  2. Press and hold the Power key.
  3. Once ‘Samsung Galaxy Note5’ shows, release the Power key and immediately press and hold the Volume Down button.
  4. The phone will restart but keep the Vol Down button pressed.
  5. Once the phone has finished restarting, ‘Safe mode’ will be display in the lower-left corner of the screen.
  6. You may now release the Volume Down button.
  7. Observe the phone for 24 hours.

Bear in mind that safe mode is not a solution in itself. It’s a method in identifying if an app is problematic. The important thing that you should watch out for is if the problem recurs or not. If wifi works properly, that’s a confirmation of our suspicion. To fix the issue, you must uninstall apps one by one. Make sure to observe the phone after every uninstall.

Try to connect to another wifi network

If the problem remains though and booting to safe mode won’t make any difference, you then want to check if it’s a phone issue or not. This is done by connecting to a different wifi. If the phone connects to another wifi without any problem, that means the problem is most probably with your wifi or router. If it’s otherwise, then you should do further troubleshooting.

Factory reset the device

If the phone won’t connect to any wifi at all, the last troubleshooting step that you can try is a factory reset. This will return all software settings to their defaults. If this won’t fix the problem either, that’s a bad sign. In this case, you’ll want to send the phone in so it can be replaced.

To factory reset your Note 5, follow these steps:

Turn off your Samsung Galaxy Note 5 completely.

  1. Create a backup of your files.
  2. Press and hold the Volume Up and the Home buttons first, and then press and hold the Power key.
  3. Keep the three buttons pressed and when ‘Samsung Galaxy Note5’ shows, release the Power key but continue holding the other two.
  4. Once the Android logo shows, release both the Volume Up and Home buttons.
  5. The notice ‘Installing system update’ will show on the screen for 30 to 60 seconds before the Android system recovery screen is shown with its options.
  6. Use the Volume Down key to highlight the option ‘Yes — delete all user data’ and press the Power key to select it.
  7. When the process is complete, use the Volume Down key to highlight the option ‘Reboot system now’ and hit the Power key to restart the phone.
  8. The reboot may take a little longer to complete but don’t worry and wait for the device to become active.

Problem 2: Galaxy Note 5 stuck in bootloop, won’t load Recovery Mode

My phone started bootlooping after connecting to my wifi, I tried booting into recovery mode but nothing happened. It just simply turned off. Then i downloaded a firmware from sammobile for my note 5, flashed it using Odin but still the phone refused to boot up. Still bootlooping. Tried to enter recovery mode but the phone just turned off. It has never shown me Recovery mode since this bootloop started. I tried getting the Nougat update, no progress. Instead when I boot the phone I see custom on the screen. Please how can I force the phone to boot up. — Ugwokegbe Nnaemeka

Solution: Hi Ugwokegbe. There’s only one thing that we can suggest to you here and that’s to reflash the bootloader.  The bootloader may have been corrupted for some reason so it’s good if you can bring its state back to stock. Bear in mind that flashing steps can vary by device. Be sure to look for the proper guide to your own particular model so you’ll not end up messing up the system further. These are the steps on how to reflash a bootloader:

  1. Look for the correct firmware for your phone model and download it. Make sure that you select the right one. It should be the same exact firmware that ran previously on your device. We assume that you list down the firmware version somewhere. If you did not take note of it before, there’s a chance that you may pick the wrong one. As you may know now, using an incorrect firmware can cause complications so good luck with that.
  2. Let’s now say that you have identified the correct firmware. You then want to download it to your computer. The firmware file should have a bunch of files in it like AP_, BL_, CSC_, etc.
  3. Look for the file that starts with a label BL; this should be the corresponding bootloader file for this firmware. Once you’ve identified the bootloader file, copy it to your computer’s desktop or to any other folder that you can easily access.
  4. Proceed with the rest of the flashing procedure using the Odin program.
  5. In Odin, click on the BL tab and make sure to use the bootloader file you’ve identified earlier.
  6. Now, make sure that the Device Added status and its ID:COM box has turned blue before hitting the START button. This will initiate the flashing of your phone’s bootloader.
  7. Restart the phone once the procedure is finished.

Should the phone continue its bootloop problem, the problem must be hardware in nature. Contact Samsung so they can replace the device.

Problem 3: Galaxy Note 5 mobile data stopped working after an update

My Samsung Galaxy Note 5 recently updated itself with a software update. Since this update, the phone will only access data through wifi. I cannot get any data over 3G or 4G. My mobile network is listed as HSPA. I have turned it off and on, have toggled the mobile data from on to off and back again to see if anything would change. I am not sure what else to try. I do not see a 3G or 4G symbol at the top of the phone, although I used to see it often when connecting with mobile data. I hope you can help me out. — Emily

Solution: Hi Emily. The first troubleshooting step that you should try is cache partition wipe. This will ensure that you refresh the system cache. Sometimes, installation of apps and updates can corrupt the system cache which is stored in the area of the phone’s memory called cache partition. Wiping the cache partition clean will force the phone to replace the old cache. This is actually a must-do maintenance tip every few months but it can also be an effective fix for any update-related problems.

Below are the steps on how to wipe the cache partition of your Note 5:

  1. Turn off your Samsung Galaxy Note 5 completely.
  2. Press and hold the Volume Up and the Home buttons first, and then press and hold the Power key.
  3. Keep the three buttons pressed and when ‘Samsung Galaxy Note5’ shows, release the Power key but continue holding the other two.
  4. Once the Android logo shows, release both the Volume Up and Home buttons.
  5. The notice ‘Installing system update’ will show on the screen for 30 to 60 seconds before the Android system recovery screen is shown with its options.
  6. Use the Volume Down key to highlight the option ‘wipe cache partition’ and press the Power key to select it.
  7. When the process is complete, use the Volume Down key to highlight the option ‘Reboot system now’ and hit the Power key to restart the phone.
  8. The reboot may take a little longer to complete but don’t worry and wait for the device to become active.

If the problem remains after wiping the cache partition, then the next logical step is factory reset. Kindly refer to the steps above on how to do it.

Finally, if factory reset won’t still restore your mobile data connection, you must contact your carrier so they help you directly.

 


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One Reply to “Galaxy Note 5 won’t connect to wifi, mobile data stopped working after an update”

  1. I had a issue connecting to home Wi-Fi for last 4 days with my Samsung note 5. never had that problem before. I upgraded my cable modem and thought that was the problem, but turns out it was not. After trying several things suggested, nothing worked. I refused to do a factory reset. after surfing for several days for a solution, I finally tried the safe mode suggestion, and it showed me some recent updates that could possibly be Wi-Fi connection problems. Tried to connect to Wi-Fi in safe mode, but it still would not connect to home Wi-Fi.

    I don’t remember where I found the post, but it talked about an update that was done for Security and Privacy by my carrier (Verizon), which a lot of users complained about issues since update The new update icon is a lock ( security and privacy). I went to settings > apps. Found Security and Privacy and disabled it. Home Wi-Fi now connected! So far so good, has not disconnected yet. Fingers crossed, hope it stays connected!!!

    No big deal for me, but the background on the lock screen changed back to the default screen. Some of the phone icons changed but the apps are still the same and in tack!! Hope this helps.

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