How to troubleshoot your Samsung Galaxy S6 Edge that can no longer send text & picture messages

Text messaging, which includes both #SMS and MMS, is one of the most basic service any smartphone owner can enjoy. However, if you have a premium device like the #Samsung Galaxy S6 Edge (#S6Edge) and you can’t send or receive text messages, then something isn’t right with your device or perhaps there’s a temporary issue with your account or the network.


Troubleshooting is the key to knowing what the real problem is and once we know the issue, we might be able to formulate a solution that will get rid of the problem for good and we will guide you through on how to do that. Read on to understand why the following problems occur and learn how to troubleshoot your phone if one of them occurs.

If you have other concerns, make sure you visit our troubleshooting page for we have already addressed a lot of issues with this phone. Find problems that are similar with yours and feel free to use the solutions or troubleshooting procedures we suggested. If you still need more help after that, then fill up our Android issues questionnaire and hit submit. We are willing to help you solve your problem as long as we have enough information about it.

How to fix Galaxy S6 Edge that can’t send SMS or text messages

Problem: First of all, I have a Galaxy S6 Edge. I bought it brand new and it was working fine since day 1 but recently Samsung ruined my phone through its updates. There was an update I downloaded and installed and then the phone can no longer send text messages. I can receive some from my friends but I can no longer send. I understand you may have already fixed a lot of issues like this but if you can just point me to a post you’ve previously published or give me step by step solution, then that would be great. Thank you!

Troubleshooting: To send a text message to your loved ones and other important people using your Messaging app is a very helpful tool to get connected with them. But your Samsung Galaxy S6 Edge might be experiencing some problems despite the device’s impressive specs and features. There are several reasons why you are unable to send text messages or received one. We can recommend troubleshooting steps and hopefully we can help you resolve the issue. Here’s some steps to follow:

Step 1: Determine How Strong Your Device’s Signal

There are Samsung Galaxy S6 Edge and other smartphones owners are unable to notice there device signal strength is low or nothing. To successfully send or receive a text messages, your device must have at least one signal bar or more. You can see the signal bar at the notification panel at the top of the screen, try to check if you have a signal. Or you can manually check the available network in the area.

To manually check the network, follow this steps: Go to Apps menu > Settings > Mobile networks > Network mode > Select the available network setting. After selecting a network, you should try sending a text message and let them reply if your device is able to do it.

Step 2: Your Location Must Be Covered With Your Service Provider

Make sure that the service provider you are subscribe with is covering your location and have enough network towers in the area. It would be useless if the services offered are only limited and covered some portion of your location, which means there are only certain areas in your house to have signal or in a county. However, if most of your neighbors are using the same service provider that you have, then there might be something wrong with your service. You can also try to manually select a network available in the area.

To manually select a network, do these steps: Go to Apps menu > Settings > Mobile networks > Network operators > Choose Search network > Select your network provider > Go back to Home screen. Then, check your device if there is signal displayed.

Step 3: Check Your Available Credits

You can check your available credits if you are on a limited subscription. There are service providers that offers their members a limited credits depending on their budget. To check for possible problem and in case if you are subscribe to unlimited service then it is best to call your service provider regarding the issue because their might be something wrong with their services in your area.

Step 4: You Can Try Using A Different Messaging App

This issue occurs sometimes after a software update and causes some problem to other apps, in this case the Messaging app. You can install a different messaging app from Google Store, but this is only  temporary just to determine if there is a problem with your default Messaging app. Then, you can try sending and receiving a text message, if ever you are able to send and receive SMS or text message using the installed app, you can go ahead and try clearing the cache and data of the default Messaging app.

To clear cache and data, follow these steps: Go to Apps menu > Settings > App Manager > Select the default Messaging App > Clear cache > Clear data. After doing so, you will be able to send and receive a text message, then uninstall the third party messaging app you recently installed.

Step 5: Have Your Message Center Number Checked/Corrected

The last thing that you should do after you follow all the troubleshooting steps above is to check your message center number. This number is very important and pre-set by your network provider to deliver your text message to its destination or to someone you want to communicate with. If this number was accidentally changed or deleted, then your text message is going nowhere, unless you will change it manually.

You can refer below for the steps to manually change your network provider’s center number, the default numbers are included above also.

If this issue persist, try contacting your service provider for further troubleshooting. However, we strongly suggest you reset your phone before you let the tech take care of the problem for you just in case.

  1. Turn off your Samsung Galaxy S6 Edge.
  2. Press and hold the Volume Up, Home and Power keys together.
  3. When the device powers on and displays ‘Power on logo’, release all keys and the Android icon will appear on the screen.
  4. Wait until the Android Recovery Screen appears after about 30 seconds.
  5. Using the Volume Down key, highlight the option, ‘wipe data/factory reset’ and press the Power key to select it.
  6. Press the Vol Down button again until the option ‘Yes — delete all user data’ is highlighted and then press the Power key to select it.
  7. After the reset is complete, highlight ‘Reboot system now’ and hit the Power key to restart the phone.

How to fix Galaxy S6 Edge that can no longer send MMS or picture messages after an update

Problem: Hello guys. I am hoping you can give me some pointers on how to fix my phone. It’s a Galaxy S6 Edge, it’s almost a year since I bought it. Everything is working fine with it except text messaging. What I mean is that the texting service is working but whenever I include a photo in my messages, they don’t get sent. Why is that? Can I fix it on my own? Thanks.

Troubleshooting: To send an MMS is one of the key feature of Galaxy S6 Edge and other smart phones. Allowing owners to receive and send pictures to your friends or relatives. There’s not much to discuss about sending or receiving MMS or picture message but in your case that you have problems after an update, we can recommend several troubleshooting steps to help you fix the issue.

Step 1: Check Your Device’s Network Signal Bar

To send a picture message or MMS to your friends or relatives, your device must have enough signal strength to successfully send it. Unlike sending a text message, you need to turn on your device mobile data network because you are sending a picture and it is larger in size compared to SMS or short messages.

You have to make sure that you are in a location that has a strong signal strength (preferably 3-5 signal bars). There are a lot of owners assuming that they can send picture message anywhere they want. To check the signal strength of your device, you just have to look at your device signal strength icon located top-right side beside the battery level.

Step 2: Data Network Must Be Active

After checking your network signal strength, activate your data network through the notification panel and tap the mobile data network icon. To send MMS is like sending emoticons in social media using the mobile data network or internet. You will know if the mobile data network is activated because there is another signal icon beside your network signal bar but it has two arrows pointing up and down.

To activate your mobile data network, follow this steps:

  1. Slide down your notification panel by swiping it down
  2. Tap the Mobile data icon
  3. If the icon turned green, your mobile data is activated and you can go back to the main screen.
  4. After doing so, you can try sending an MMS to determine if the device is able to do it.

Step 3: Make Sure That You Have Enough Credits

The problem sometimes is not always on the update, there are rare cases that the owners forgot to check their credits to be able to send or receive an MMS or use other services. There are network providers allow their subscribers to use Wifi to send or receive MMS or SMS. However, in your case, your network provider might not authorise you from using Wifi, but if your authorized then you have no problem sending or receiving, only when you’re using mobile data. To know the services of your service provider offered, you can simply call them for inquiries.

Step 4: Message Center Number must be correct

To successfully send and receive a text message or picture message your message center number must be correct. Since this problem started after an update, there are possibilities that the message center number was not included in the update and causing your device to unable to send and receive MMS or picture message. Every network service provider regardless what devices the owners are using have different and default message center number. To make this simpler, you can follow the steps below how to check your message center number:

  1. Assuming you are on the main screen
  2. Open your device’s keypad, tap Phone icon
  3. Once your keypad appears, you have to enter the engineering code to check you network provider center number
  4. Type this code, *#5005*7672# and press call icon
  5. After typing the code, the device will display your provider message center number. In any case that the numbers are not the same or not displayed, then you have to manually change it.

First, here are the network provider center numbers:

  1. T-Mobile: +12063130004
  2. AT&T: +13123149810
  3. Sprint: +17044100000
  4. Verizon: +316540951000

Then, below are the steps how to manually change the provider message service center number.

  1. Open your device’s keypad, tap Phone icon
  2. Type **5005*7672*NUMBER# (e.g. **5005*7672*12063130004#)
  3. After typing the code, tap Call
  4. And your done!


  1. Go to Settings.
  2. Tap More.
  3. Tap Settings.
  4. Tap More settings.
  5. Tap Text messages.
  6. Enter 12063130004 as the Message center number if you are a T-Mobile subscriber. If not, then refer above for the list of your provider message center number.

Important Things To Remember

The Network providers are not all the time giving the expected services as to what they advertise. And not all the locations have the same signal strength than the others because either it depends on how many subscribers in the area, how often they are using the data, the location, and any other factors.

If this problem continue to occur, give a call to your network provider and hopefully they can find a way to resolve the problem.


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