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How to Fix Samsung Galaxy S4 Problems and Errors [Part 35]

Welcome to the 35th part in our series of troubleshooting articles dedicated to the Samsung Galaxy S4. It’s been around a week since we posted the last part and ever since then we have received numerous emails from our readers concerning this particular model. In this part we will be answering some of the latest questions sent to us by our readers.

Galaxy S4

You will notice that some of the issues may be similar to what we have tackled in the past. We still do our best to provide solutions to these issues since we provide a more personalized approach to our readers.

If you own a Galaxy S4 or any other Android device for that matter feel free to send us an email at [email protected]. We will be more than happy to help you with any concern that you may have with your device. The best part of this is that this is a free service we are providing to our readers with no strings attached. What we do ask is that when you do send us an email try to be as detailed as possible so that we can make an accurate assessment and the correct solution can be provided.

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Galaxy S4 Logic Board and Software Updates Issue

Problem: Hello Droid Guy, I’ve been using S4 for more than a year now and never experienced any problem with it until just recently. I was charging my phone when I noticed it continuously losing battery charge and the phone itself became hot, particularly the SD, SIM Card area, so I decided to turn it off. When I pushed the power button the phone option window (Power Off, Data Network Mode, Flight Mode, Restart) popped out transparently that I can still see the background of my phone and it hanged up. I waited for several minutes hoping something will happen but nothing happened! So I unplugged it and removed the battery for few minutes then plugged it again to charge it. When I was waiting for the battery to show up signaling it’s charging, I noticed my phone was become hotter (still no sign it was charging, as in no reaction but the heat in the said area). I started to worry because I cannot afford to lose this phone! I went to the Samsung Service Center to check it up. The technician told me it might be the logic board and it might be so expensive and the repair would took some time for the parts would still come (imported) from the Samsung factory. So I tried to find other service center to fix my phone. I went to the other low-cost mobile phone technicians. They checked the charging port, the four (4) gold strips connecting the battery to the board, the battery itself, the volume and the power buttons etc., but still, did not turn on. So they opened, checked and tried to change and test new S4 board and it worked! It did open! But they have to reprogram it because there were some yellow characters appeared when they turned it on and while we were browsing the phone. When they finished fixing it (it is Android Version 4.4.2 by the way), I checked it myself again with my SIM and SD card inserted in it and nothing seemed so unusual. It’s like nothing bad happened to my phone. When I got home I rechecked it to make sure it went back to its usual operation. I reinstalled all my apps. When I tried the software update (though I know it is already KitKat, I still tried to update it to see if the same message would pop out (that my phone is updated or the latest android is installed, something like that), but instead it says, “Your device has been modified. Software updates are not available.” I remember the “GPS” changed into “Location” when the KitKat installed and got updated in my phone before it went black out but now it’s “GPS” instead of “LOCATION” thinking kitkat has already installed in my phone. I am also worried that now my phone cannot be updated to the latest android versions in the future. What should I do, please help and advise me? Hoping for your response.

Solution: When the technician replaced your S4 board this board may be a different version than what you were using but it is still an S4 board. This board might come from a network locked device but was later unlocked. This involves some changes to be done on the software of the phone. This might be the reason why you are getting the “Your device has been modified. Software updates are not available” message on your phone.

What you should do is to check what Android version your phone is running on right now and to check on its firmware. You should also go back to the technician who replaced the board and ask what particular board model you are now using and take note of this.

For future Android updates you might want to try using the latest Kies software. Just install it in your PC then connect your phone using a USB cord to your PC. You will be notified if there are any new updates.

If Kies does not allow you to update then you can use Odin. This is a software that is installed in your PC that is used to update Android devices. You will need the specific firmware files for your particular device (since your board has changed make sure the firmware is compatible with your board). You will also need the Samsung USB drivers installed in your PC.

For instructions on how to use Odin you can search several of the popular Android forums regarding his matter.

Galaxy S4 USB Cord Charging Issue

Problem: So I’ve had my S4 for 9 months now, and for a while I could use the cord that came with it which was nice because you can’t easily find a 6ft cord. But I started to have to turn my phone over while charging so the cord would sit properly in the port, now I can’t use that cord at all but I have to use shorter ones which click in better. What can I do to fix that?

Solution: It’s usually difficult to fix a USB cord since the problem may lie on its wire which is enclosed in plastic and rubber. You’d have to cut through this insulation, find the problem in the wire, reconnect the wire, and then cover it. This is a tedious job which becomes messy in the end. A quicker solution will be to just buy a new USB cord which doesn’t cost a lot.

Galaxy S4 Screen Does Not Lock After 4.4.2 Update

Problem: Hiya, helped needed from the UK. I’m currently running Android 4.4.2 on my Galaxy S4. There was a recent software update I did about 2 weeks ago and since then my phone hasn’t been timing out. The screen doesn’t lock off unless I manually press the on/off button myself. I don’t know if it’s due to the recent update or if it’s because of one of the many apps I have, but please! Help a sister out here!!! It’s driving me nuts as the screen is so sensitive and ends up doing all sorts when it’s in my bag or just in my hand. Cheers!

Solution: Whenever problems occur right after a software update it is always a good idea to do a factory reset on your phone. These problems are usually caused by the data of the previous software version that has not been completely removed. The best way to remove this is through a factory reset. Just make sure to backup all your data first before performing this procedure.

  • Turn the phone off completely.
  • Press and hold the Volume Up, Home and Power buttons.
  • Release the Power button when the phone vibrates but continue holding on to the Volume Up and Home buttons.
  • When the Android System Recovery screen appears, release both the Home and Volume Up buttons.
  • Using the Volume Down key, highlight ‘wipe data / factory reset.’
  • Press the Power button to select it.
  • Using the Volume Down button again, highlight ‘delete all user data.’
  • Press the Power key to select it.
  • Once the reset is complete, choose ‘Reboot system now.’
  • Press the Power button to restart the phone.

Once your phone has fully rebooted check your screen lock status and see if it now works normally.

Galaxy S4 Wi-Fi/ Mobile Hotspot Issue

Problem: First of all, I have dropped my phone several times. Now my problem is about its Wifi and hotspot. The wifi is working but it can’t detect any wireless network but sometimes one or two would appear but usually none. Moving to the hotspot issues, I was using the phone to connect my desktop pc to the internet when suddenly the computer was cut off from the connection. So I checked the phone and restarted it. It worked but after 10 minutes or so, the computer was not able to detect my phone again. Every day, I tried to connect my pc from my phone’s hotspot but no success. So I decided to use factory reset. After the process, the issues were still there. (On the bright side, its battery life improved.) And now, I don’t have any idea what to do. Well except going to my carrier or worse, to the nearest Samsung repair center. What do you think, is this a software or a hardware problem? What should I do? Thanks! I tried to check if my pc was the one needed to be fixed, but it wasn’t. It can detect other networks including a phone’s hotspot. The pc can detect other wireless networks including a phone’s hotspot except mine of course. Thanks again!

Solution: It appears that your phone may have suffered an internal damage due to the drops which is affecting its Wi-Fi functionality. If after performing the factory reset the problem still occurs then it’s most likely not caused by any software issue at all. Your best option is to bring your device to an authorized service center and have it checked.

Galaxy S4 Automatically Turns On Wi-Fi/ Mobile Data When Charging

Problem: Hi, I have been using s4 past one year but past 2-3 weeks, i have encountered a very wierd problem. Whenever i put my phone on charging it automatically turns on the wifi and mobile data and the volume is muted. I tried everything but doesn’t work and a lot of money has been wasted due to mobile data. Please help me out with this.

Solution: If you are on the Sprint network then the Connection Optimizer feature may be enabled which may be the reason why this is happening. Just go to Settings > Mobile Data > Automatic Connections > then uncheck “Connection Optimizer”.  You might also want to go to Settings > Wi-Fi > Smart Mode > turn off.

If you are on another network though then this issue may be caused by a third party app that you have installed. To verify this just reboot your phone in Safe Mode.

  • Turn the device off completely.
  • Press and hold the Power button.
  • Once the Samsung Galaxy S4 logo appears on the screen, release the Power button.
  • As soon as you release the Power button, press and hold the Volume Down key.
  • Continue holding the Volume Down key until the phone has completed the reboot process.
  • If you can read ‘Safe Mode‘ at the bottom left corner of the screen, release the Volume Down key. Otherwise, repeat the process until you can boot the phone to Safe Mode

Once in Safe Mode try charging your device and see if the Wi-Fi or mobile data gets enabled. If not then you may want to find out which app is causing the issue and uninstall it.

As a final troubleshooting step you can perform a factory reset if all else fails. Backup your data first before performing this procedure.

  • Turn the phone off completely.
  • Press and hold the Volume Up, Home and Power buttons.
  • Release the Power button when the phone vibrates but continue holding on to the Volume Up and Home buttons.
  • When the Android System Recovery screen appears, release both the Home and Volume Up buttons.
  • Using the Volume Down key, highlight ‘wipe data / factory reset.’
  • Press the Power button to select it.
  • Using the Volume Down button again, highlight ‘delete all user data.’
  • Press the Power key to select it.
  • Once the reset is complete, choose ‘Reboot system now.’
  • Press the Power button to restart the phone.

Galaxy S4 Does Not Turn On

Problem: Hi there, I’ve saw your page and I would just like to enquire more about how to solve my phone’s problem. My phone is a Samsung Galaxy S4, I’ve been using it for a year now. Just now my phone had suddenly turned off by itself while I was charging it, it then turned out again and switches off instantly. I tried to remove the battery pack and restart my phone. However, things got worst and it cant even turn on now. I’ve even tried the 3 button , volume up, home button & power button but as soon as I was about to hit the power button to reboot my phone, it switches off instantly again. I’m getting really frustrated about this as I’ve tried countless time to reboot my phone but it just instantly switches off again. I’m also unable to charge the phone, when I plugged it in with the wire, it’s still plain black. I would really appreciate if you could help me with my problem. Thank you.

Solution: The first thing to check whenever a phone does not turn on is its battery. If you have access to another battery that is known to work try using it in your phone. It would also be a good idea to use a different charger as the one that you are using may be faulty. Charge your phone for at least 30 minutes using the new battery and check if you can turn it on. If you still can’t turn your phone on then this may already be caused by a faulty hardware. Your best option is to bring the phone to an authorized service center for checking.

Galaxy S4 Water Damage Question

Problem: I have a Samsung galaxy S4, my daughter put my phone in toilet but it wasn’t completely submerged…I quickly got out in about 2 seconds. I took battery out and left in car for a few hours.  I stay in AZ so it’s hot. It dried out. About 4 hours. I turned on everything worked except speaker. Loud speaker. When a call comes in I can hear them but they can’t hear me, I can’t hear music alarms nothing. I can hear when I plug earphones but low. I 4G placed speaker piece only a cracking noise. I put in rice still same thing. Can I replace usb board to help sound or just replace full motherboard?

Solution: It’s difficult to troubleshoot a water damaged device unless it is opened and inspected thoroughly. This is because the water may damage certain components in your phone while leaving other components intact. If you have experience in opening the phone and replacing tis components then I suggest you open it first and inspect the device for the particular component that has been damaged. Otherwise, you best option is to bring your device to an authorized service center for checking.

Galaxy S4 MicroSD Can’t Be Accessed

Problem: Something is wrong with my micro sd card on my android phone s4 i don’t know what’s wrong the problem started today first some apps weren’t working which were mounted onto the micro sd and then all my other files were also gone and then when i put the sd card on the laptop than this message was appearing B\ is not accessible incorrect function i tried formatting it than, but the formatting option won’t appear I tried formatting it through the phone but it still won’t format please help out, help me to find a way to format it please, thanks.

Solution: Your microSD card may already be faulty. This isn’t unusual as these memory devices usually gets damaged for one reason or another. Your best option is simply to replace it with a new one.

As far as recovering the data stored in the microSD card this is going to be a difficult task. If the microSD card cannot be detected by your PC then there’s really nothing much you can do on your end.

You can however try inserting your microSD in another PC and see if it can be read. Try also to use a different SD card adapter when connection your microSD to another PC as the one you are using may be faulty.

Galaxy S4 Can’t View Emoji

Problem: My mom and I both have Galaxy S4. I can send emojis and see the ones I send but I can’t receive them through text. Its just shows up as “????” In a diamond shape. But my mom can view and receive them through text.  Any way to fix this? And I am on the newest software android 4.4.2

Solution: This may just be caused by an issue with the default messaging app. Try clearing the cache and data of the app and check on your emoji’s again. Just go to settings > select more > application manager > select the messaging app > clear cache > clear data.

Galaxy S4 Error When Installing System Update

Problem: My phone notified me that a system update is available. When I try to update my device it fails. Twice I receive an error message that an electronic signature is not recognized and the installation is aborted.  I have over 7 gb of device storage available. How do I get this update?

Solution: First make sure that you have a stable Wi-Fi connection. Most of the time when the Wi-Fi connection is unstable the update will usually fail. You can also try updating your device by connecting it to a PC with the latest Kies software installed. Connect your phone using a USB cord to your PC and run the Kies software. It will search for any new updates for your device. You will just have to follow the on screen instructions to get the update.

If you still can’t get the latest update then you may have to perform a factory reset on your device first. Be sure to back up your data first.

  • Turn the phone off completely.
  • Press and hold the Volume Up, Home and Power buttons.
  • Release the Power button when the phone vibrates but continue holding on to the Volume Up and Home buttons.
  • When the Android System Recovery screen appears, release both the Home and Volume Up buttons.
  • Using the Volume Down key, highlight ‘wipe data / factory reset.’
  • Press the Power button to select it.
  • Using the Volume Down button again, highlight ‘delete all user data.’
  • Press the Power key to select it.
  • Once the reset is complete, choose ‘Reboot system now.’
  • Press the Power button to restart the phone.

Once your phone has fully restarted go ahead and update your device.

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