Samsung Galaxy S5 4G Not Working After Software Update Issue & Other Related Problems

One of the best ways to stay connected online while on the go is by using a smartphone. The #Samsung #Galaxy #S5 for example is one of the best smartphones that you can get ( at a cheaper price right now) for you to stay connected to your social networks or if you simply just want to catch that elusive Pokemon if you have Pokemon Go installed. This particular model allows you to connect to any Wi-Fi network or by using your mobile data connection. There are however instances when connectivity related issues can occur on this device. This is what we will address today as we tackle the Galaxy S5 4G not working after software update issue & other related problems.

Samsung Galaxy S5

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S5 4G Not Working After Software Update

Problem: Hi, I have a Galaxy S5 unlocked AT&T phone running on Straight Talk.  AT&T did a software update ( without my asking for it, while out and about, so not even on Wi-Fi) and now the 4G is simply gone.  I tried removing the battery, clearing the cache ( thanks for the info on how to do that ) turning on and off both WiFi and airplane mode, and nothing seems to bring it back.  My son has the same phone on the same plan, but his phone was so full of things that it was unable to do the update, and his is still working just fine.  When I am out, I have phone and text, but no data.  It insists I am off line at all times unless connected to WiFi.  It was working fine before the update installed.  Any ideas?  Thanks in advance.

Related Problem: I am using the Samsung Galaxy S5 Active.  Recently downloaded current AT&T software version.  After the download, I didn’t have any mobile data connectivity.  I am able to make and receive calls, but no internet, unless on WIFI.  I looked up the current update from AT&T and everything matches except my Kernel Version.  This may be the issue I am having, don’t know much about it.  Thanks.

Solution: Before doing any troubleshooting you should try to check if you have an active mobile data subscription first. Once you have made sure that you have a subscription the next step is to check the APN settings of your phone. While these settings don’t change whenever the phone software is updated there have been cases where it changes.

To go to your phone APN settings

  • Tap Apps
  • Tap Settings
  • Go to More Networks
  • Tap Access Point Names

Make sure that the settings are as follows

  • Name: ATT HSPA+
  • APN: phone
  • Proxy: <Leave in Blank>
  • Port: <Leave in Blank>
  • Username:  <Leave in Blank>
  • Password:  <Leave in Blank>
  • Server: <Leave in Blank>
  • MMSC:
  • MMS proxy:
  • MMS port: 80
  • MCC: 310
  • MNC: 410
  • Authentication type: <Leave in Blank>
  • APN type: default,supl,mms,hipri
  • APN Protocol: Leave it to the Default one
  • Bearer: leave it to the Default one

If the settings are correct and you still are unable to connect to your mobile data subscription then I recommend that you backup your phone data then do a factory reset.

S5 Wi-Fi Internet Not Working After Marshmallow Update

Problem: I just did a software update this morning to Marshmallow (I think).  While my wi-fi is now connected, my internet connection is not.  I have done a soft reset as suggested above. Messenger states “waiting on network connection” so I removed both it and Facebook but could not access Google Play to re-install to see if that would work.  I have no clue what step to take now.  I am not tech-savvy at all so would appreciate step by step on what to do to restore my connection.  Thank you.

Solution: Try to forget the Wi-Fi connection from your phone then connect to it again. This will take out the old profile settings which might have been corrupted during the update. Once you have connected to the network again try to check if the issue disappears. If it doesn’t then try connecting your phone to a different Wi-Fi network . This allows you to check if the issue is caused by your Wi-Fi network.

Once you have made sure that the problem is not with the Wi-Fi network the next step is to wipe the cache partition of your phone from the recovery mode. This takes out the temporary system data which might be causing this problem.

One last troubleshooting step that you should consider if the issue doesn’t get fixed is to do a factory reset. This deletes the old software data that might still be in your phone and is causing the problem.

S5 Straight Talk APN Gone After Factory Reset

Problem: I have been using a SIM card in my Samsung Galaxy s5 for well over a year now, with little to no issues. I recently did a factory reset, and had to switch to a new battery, thank you by the way for your tutorials on how to do a hard reset on this phone, it helped tremendously. I can make calls, send texts, but my Internet info for straight talk has been wiped clean, so I can’t use my data. The phone was originally an AT&T phone, but has been straight talk almost the entire time I’ve had my phone. Any assistance you could offer, or steps to set it back up so I can use my data again, would be very much appreciated. Thank you so very much.

Solution: Go to the APN settings in your phone and make sure that the settings listed below are set.

  • Name: straight talk
  • APN: tfdata
  • MMSC:
  • MMS proxy:
  • MMS port: 80
  • MCC: 310
  • MNC: 410

S5 Your Connection Is Not Private Error

Problem: Whenever I try to connect to my school’s wifi on my Samsung Galaxy S5, and it tries to log me into the network, Chrome opens and displays the message “Your connection is not private.”  It also has a picture of a red pocketbook with a white X through it.  This problem just started this school year. Last year, I was able to connect to the same network with no problems.

Solution: Start the troubleshooting by checking the time and data set in your phone. It is best if you have the phone get these values automatically from the network.

You should also check if a third party app installed in your phone is causing this problem by starting the phone in Safe Mode. In this mode only the pre-installed apps are allowed to run while apps you downloaded are disabled. Once the phone is in Safe Mode check if the issue still occurs. If it doesn’t then it might be caused by an app. Find out what app this is and uninstall it.

There are also instances when the problem is caused by a corrupt temporary data stored in the browser.To fix this just clear the cache and data of the broswer from the application manager.

If you are still having the same issue and this doesn’t occur when you connect your phone to other Wi-Fi networks then I suggest you approach your school IT department regarding this concern.

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2 Replies to “Samsung Galaxy S5 4G Not Working After Software Update Issue & Other Related Problems”

  1. My unlocked AT&T Samsung Galaxy s5 did an automatic AT&T update about a week ago. Since then, I have been unable to download any text pictures. My son, who can usually fix anything digital, gave up trying. Straight Talk is my carrier. Can you help?

  2. Did a software update on my Samsung galaxy s5 now it won’t work, you can turn it on but but that’s about all you can do. When it does is just flashes Samsung

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