Galaxy S7 cannot send SMS and email to other networks, other issues

Good day everyone! Here’s another brief list of other #GalaxyS7 series issues submitted by members of our community. For those who sent requests for assistance to use but don’t find their issues published here, we say please continue to watch out for more similar posts in the near future.


In the meantime, these are the topics covered in this material today:

  1. Galaxy S7 Edge from Three has darkish grey bands on screen
  2. Galaxy S7 cannot send SMS and email to other networks
  3. Galaxy S7 messaging app and keyboard freezing after an update
  4. Galaxy S7 apps randomly stops working
  5. Galaxy S7 mobile data with Tracfone SIM not working
  6. Galaxy S7 won’t send SMS

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, or you can install our free app from Google Play Store.

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.

Problem #1: Galaxy S7 Edge from Three has darkish grey bands on screen

Hi, I’ve had the Samsung Galaxy S7 Edge since 23rd May this year from (Ireland). No problems with it at all until about 10:30 this morning. It was sitting on my desk, the Always On Display showing the time etc. I activated the screen, only to find that there were darkish grey bands (about 1cm wide and 1cm apart) running from top to bottom of the screen. I recycled the power – same situation. Powered the phone off for about 5 minutes and back on again, same situation.

I took the phone to the nearest shop and they said this is the third one they’ve seen in the past few weeks with this issue. No argument or discussion, they tried a factory reset – even though they seemed to think that would make no difference (which it didn’t) and the phone has now gone in for repair.

I wondered if this is something anyone else has seen? Or if there’s any ideas as to what the cause may be. I suspect it may be a GPU/Screen Interface issue, but I don’t know the internal hardware anywhere near enough to be able to say this with any certainty.

It did occur to me, as the guy in the shop said they’d seen a few with this issue recently if this may be an emerging issue with the hardware or perhaps simple a “bad” production batch. As far as I know, the phone is still running the Marshmallow version (6.01 I think) when it arrived – I didn’t check the version before going to the shop. Cheers. — Gary

Solution: Hi Gary. We are not aware of any other users experiencing the same exact symptoms you describe as of this writing so there’s no way for us to say if this is a known hardware issue or a glitch specific to a certain Android version. If your carrier has encountered other similar cases lately, then you should reach out to them to get more details about the problem, especially that they have a chance to check the hardware.

The chance of you having received a piece from a bad batch is not far fetched and it has happened with Galaxy S5 before. Samsung did acknowledge that a specific Galaxy S5 batch had a problem after a number of users reported troubles with the camera. It was isolated to a small number of Galaxy S5 devices though so the same thing can happen with your Galaxy S7 here. We suggest that you let Samsung know about this problem as well so they can dig deeper into it together with your carrier. Both of them are in a better position to inform you of the problem and their solutions than us.

Problem #2: Galaxy S7 cannot send SMS and email to other networks

My husband has an S7. Up until Friday he was able to send a text message with a photo to his email (Comcast) from the regular text message box (from him to him). However, he cannot send a regular text message, send a text message to another email carrier with a photo attachment. He can receive a message from his Comcast email w/ attachment via his number to his phone text message box. so there is not a problem with the receiving just sending. I was not sure if there was a setting that had got changed accidentally. we have cut the phone off to let it reset.

Thank you for your time. I do not know which Android version he has. — Jus4tzn

Solution: Hi Jus4tzn. This issue is best supported by your wireless carrier as the cause of the problem may be related to an on-going network or account issue. Before you contact them though, make sure that you do the following two things:

Delete the messaging app’s cache and data. Android keeps a cache and related information for each app to quickly and efficiently load them. An app’s cache and data also holds app-specific information like preferences, settings, usernames, passwords, among others. Sometimes, an Android update or an app update can corrupt the existing cache and data so it’s good if you can refresh the existing ones. Here’s how it’s done:

  • From the Home screen, tap Apps icon.
  • Find and tap Settings, then touch Applications.
  • Find and touch the app you’re having issues with.
  • Touch Storage.
  • Tap Clear cache.
  • Tap Clear data, then OK.

Perform a factory reset. Nobody wants to do this but if nothing seems to work, you really have no other choice in terms of troubleshooting left. Restoring firmware and app settings back to defaults may eliminate bugs that developed after installing third party apps or updates over time. Here’s how it’s done:

  • Turn off your Samsung Galaxy S7 Edge.
  • Press and hold the Volume Up, Home and Power keys together.
  • When the device powers on and displays ‘Power on logo’, release all keys and the Android icon will appear on the screen.
  • Wait until the Android Recovery Screen appears after about 30 seconds.
  • Using the Volume Down key, highlight the option, ‘wipe data/factory reset’ and press the Power key to select it.
  • Press the Volume Down button again until the option ‘Yes — delete all user data’ is highlighted and then press the Power key to select it.
  • After the reset is complete, highlight ‘Reboot system now’ and hit the Power key to restart the phone.

Problem #3: Galaxy S7 messaging app and keyboard freezing after an update

Hello. Recently after the new software update of 6.0.1 my Samsung Galaxy S7 has been lagging. It is most apparent in the messaging app. It takes a few seconds for my phone to keep up with my typing and if I am receiving a text message at the same time as typing then my phone freezes. I have powered down the phone, held the home, volume up, and power button to clear the cache and I have also gone to the messaging application and cleared the cache.

Also my keyboard will stay on my screen even after I get out of messaging, internet or any other app that uses the keyboard. I have to hit the home button to make the keyboard go away.  Do you have any suggestions on how to fix this? It all starting happening after the update.  Thank you! — Kimberly

Solution: Hi Kimberly. Another must-do after an operating system update is to make sure that your apps are all updated as well. Doing so will minimize bugs and compatibility problems. Whether you’re using a pre-installed or third party messaging app, you must make sure that it’s compatible with the new Android update. The same is true for all your other apps. An incompatible app can cause unforeseen glitch and may manifest even after doing a simple operation.

Now, since wiping the messaging app’s cache and data and cache partition wipe did not yield any positive result, don’t hesitate to do a factory reset. Once you’ve done that, all software settings will be reset back to their default. If the problem remains even after a factory reset (and without apps installed), you can bet the issue has something to do with the update you installed. If such update was pushed by your carrier via OTA, contact them and let them know about the issue.

Problem #4: Galaxy S7 apps randomly stops working

I’m trying to determine if my phone is a lost cause. No app seems to work without stopping. I have tried pretty much every option listed. (Soft reset, clearing the cache, factory reset, testing in safe mode). Sometimes it will work for a little while (minutes, up to maybe an hour) then I’m back to the apps stopping. I may get a message the Messages has stopped working, then I would have to tap ok or wait. That box may freeze up then I get another box about TouchWiz or TouchWiz home. Sometimes, I could be on an app (both 3rd party and factory installed) and the screen starts flickering. Then it freezes. If the app stops working, sometimes it won’t give the option to tap the ok or wait. It freezes up, then about 2 minutes later it just resets on its own. I also have issues with it overheating. When it starts to get warm, I’ll have to completely turn it off and wait until it has cooled off before turning it back on. I did have an issue a couple months back when the phone just wouldn’t turn on. I sent it back to Samsung to have it fixed and they replaced a component. It didn’t help the other issues. It actually seemed like it made it a little better, I was getting the messages less frequently. Now, however, it just seems like after every software upgrade, it gets worse and worse. I’d hate to have to buy a new phone. — April

Solution: Hi April. The general rule in “fixing” Android problems is to try software solutions first. If they won’t change anything, then you can start looking for a way to have the hardware repaired or the phone replaced. There’s no special tricks or “advanced” troubleshooting that an average Android user can do. That may not be very good news for you but that’s the fact. We don’t know what your expectations are from us but if procedures you mentioned above (Soft reset, clearing the cache, factory reset, testing in safe mode) have already been tried, then you can bet your phone is problematic.

Keep in mind that overheating is almost always accompanied or caused by hardware malfunction. Your apps stopping randomly may not due to software problem but by bad hardware. We can’t obviously know what the hardware problem might be so your only way out is to either try to save your phone by submitting it to Samsung for another checkup and repair, or simply have the device replaced.

Problem #5: Galaxy S7 mobile data with Tracfone SIM not working

Hi. Okay. I got this phone used to use with my Tracfone network. It was unlocked and had no SIM card. I got the Tracfone SIM card and put that in, and got it activated, but no calling or texting, so I got a hold of technical services and found out that they had forgotten to transfer my minutes, so got that fixed.

The problem is that I have no data outside of the house where I use the wi-fi, and I know I have a good 1000 MB of data, which should have been transferred as well.

I tried to follow the instructions for the other people, from Verizon to T-Mobile, and change the APN, but when I got to reset device, tapped that and then tapped ok, there wasn’t anything else there. All it said was AT&T nextgenphone. Do you think it is a tracfone problem and I should contact their tech. people, or perhaps the data didn’t get transferred.

Also, when I go online to the Tracfone website to see how many minutes etc. I have, it tells me to dial *771*7# for the info. And when I do that all I get is a memo stating, connection problem or invalid MMI code.I need that data to work outside of my wi-fi. Help. Thanks. — Kimble

Solution: Hi Kimble. You must call Tracfone so they can check a few things before answers can be provided. We don’t work for Tracfone and we are not familiar with how their services work so all we can do is speculate. You need a first-hand assistance from their technical team. \

The most important thing you want to know first is to check if your phone is compatible with their services. Tracfone works in both CDMA and GSM networks so there may be some specific setting that you need to change on your device in order for mobile data to work. They may also need to activate mobile data service on your account first before you can use their network. All these things can only be provided by them so we apologize if we are of not much help at all.

Problem #6: Galaxy S7 won’t send SMS

Hello. I’ve recently bought an unlocked Verizon Samsung Galaxy S7 and brought it to my country of residence (Belize City) and everything seems to be fine at first. Receiving and making calls works properly; even receiving texts. The problem occurs when trying to send a message. It does not work.

I’ve tried disabling dialing assist, rebooting the phone, editing the numbers in my contact list and even tried downloading other texting apps in the Google Play Store. Nothing works. Please, is there anything I need to change or edit for this to work. Any help would be greatly appreciated as i use the phone for business. — Aenovelo

Solution: There’s a series of things that you must do in order to ensure that everything is setup fine but we suggest that you simply call your service provider for direct assistance. The most common cause for this type of problem though is an incorrect Message Center number. Make sure that you ask for the right Message Center number from your carrier to check if the current one is correct.

If you are in a GSM network, you can also insert your SIM card on another phone and check if sending and receiving of SMS work. If it does, there’s high chance that the only thing you’re missing right now is the correct Message Center number.


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One Reply to “Galaxy S7 cannot send SMS and email to other networks, other issues”

  1. When I receive an SMS message from an iPhone, the date is 2 days in the future, and the pic or vid stays as the last message received, thus you have to scroll up each time to see latest texts?

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