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Galaxy S7 won’t send SMS to some contacts after using it as a hotspot, other issues

Due to an increasing number of incoming #GalaxyS7 and #GalaxyS7edge issues, we may be publishing at least 2 posts for this device every day starting today. So far, this is our second S7 for the day so we hope that we make this as just another helpful reference for those looking for solutions for their S7 problems.

Below are the topics that we cover for you today:

  1. Galaxy S7 mark notifications as read after installing an update
  2. Galaxy S7 not charging via USB cable
  3. AT&T Galaxy S7 edge can’t connect to mobile data when on T-Mobile network
  4. Galaxy S7 won’t turn on after getting several “App has stopped working”
  5. Deleted emails from laptop won’t go away in Galaxy S7
  6. Galaxy S7 keeps showing “sending” even after SMS has been sent
  7. Galaxy S7 wifi freezing and crashing after installing Android Nougat update
  8. Galaxy S7 won’t charge and keeps vibrating when connected to a charger
  9. Galaxy S7 won’t send SMS to some contacts after using it as a hotspot

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 mark notifications as read after installing an update

After the most recent update my phone will mark notifications as read. This happens when the phone screen is off and the app is on in the background, like if i were to unlock the phone then the specific app would already be open. It does this with Snapchat and Textra the most. I’ve looked through notification settings and reinstalled both apps but the problem still persists. If I hit the home button before pressing the power button then the notifications will stay unread. So only if I was just using the app and then closed my one will the notifications disappear. — Jake

Solution: Hi Jake. We suggest that you do the usual set of software troubleshooting for post-update issues which includes wiping the cache partition, installing all app updates, observing in safe mode, and factory reset. These procedures should fix the issue whether the cause is on app level or something on the operating system. Below are the steps on how to do each of them.

How to wipe the cache partition of a Galaxy S7/S7 edge

  1. Turn off your Samsung Galaxy S7.
  2. Press and then hold the Home and Volume UP keys, then press and hold the Power key.
  3. When the Samsung Galaxy S7 shows on the screen, release the Power key but continue holding the Home and Volume Up keys.
  4. When the Android logo shows, you may release both keys and leave the phone be for about 30 to 60 seconds.
  5. Using the Volume Down key, navigate through the options and highlight ‘wipe cache partition.’
  6. Once highlighted, you may press the Power key to select it.
  7. Now highlight the option ‘Yes’ using the Volume Down key and press the Power button to select it.
  8. Wait until your phone is finished doing the Master Reset. Once completed, highlight ‘Reboot system now’ and press the Power key.
  9. The phone will now reboot longer than usual.

How to boot a Galaxy S7/S7 edge to safe mode

  1. Turn your Galaxy S7 off.
  2. Press and hold the Power button.
  3. Once the ‘Samsung Galaxy S7’ logo appears, release the Power key and immediately press and hold the Volume Down button.
  4. Continue holding the button until the phone finishes rebooting.
  5. Once you see the text “Safe mode” at the bottom left corner of the screen, release the Volume Down button.

How to master reset a Galaxy S7/S7 edge

  1. Create a backup of your important files such as photos, videos, etc.  Files stored in your SD card are okay and won’t be touched by factory reset.
  2. Turn off your Samsung Galaxy S7.
  3. Press and then hold the Home and Volume UP keys, then press and hold the Power key.
  4. When the Samsung Galaxy S7 shows on the screen, release the Power key but continue holding the Home and Volume Up keys.
  5. When the Android logo shows, you may release both keys and leave the phone be for about 30 to 60 seconds.
  6. Using the Volume Down key, navigate through the options and highlight ‘wipe data / factory reset.’
  7. Once highlighted, you may press the Power key to select it.
  8. Now highlight the option ‘Yes — delete all user data’ using the Volume Down key and press the Power button to select it.
  9. Wait until your phone is finished doing the Master Reset. Once completed, highlight ‘Reboot system now’ and press the Power key.
  10. The phone will now reboot longer than usual.

Problem #2: Galaxy S7 not charging via USB cable

Hey. I wish to share a weird problem regarding my phone (1 year old) Samsung Galaxy S7. Recently, I had left it overnight for charging (happened twice only till now) and now my phone does not seem to charge with the help of original charger (in fact discharges sometimes). I have one spare USB and my phone charges better (not too fast and not too slow) with it when I charge it with laptop. But if I use the same USB with some adapter, then phone charges very slowly. My phone does not seem to charge good with adapters 🙁

Do you happen to have any idea what could be the problem here? Thank you in advance! — Roopal

Solution: Hi Roopal. If your phone no longer charges using the original Samsung charger and cable it came with, you should consider using another original charger to see if it’s a phone issue or not. Using the same USB cable but unofficial charger (from another manufacturer) may not work properly due to incompatibility issue. Only Samsung chargers and USB cables are validated by Samsung engineers when they designed your phone so there may be some things that they may have not considered resulting to poor charging performance. Keep in mind that not all chargers work well with Samsung devices so if you want to determine if this issue is due to a charger or phone problem, stick with official Samsung ones.

If a new original Samsung charger won’t make any difference, that’s the time that you consider doing some phone troubleshooting.

The first thing that you want to do is to recalibrate the battery. This will ensure that the operating system detects battery levels accurately. Here’s how it’s done:

  1. Use the phone by playing games or doing tasks to hasten power discharge, until the phone turns itself off.
  2. Turn the phone on again and let it turn itself off.
  3. Charge the phone without turning it back on.
  4. Wait until the battery says it fully charged to 100%
  5. Unplug the charger and turn the phone on.
  6. If the phone says it’s not 100% anymore, turn it off, plug the charger back in and wait until 100% charge is reached.
  7. Unplug the charger the turn the phone on again.
  8. Use the phone until you drain the battery down to 0.
  9. Repeat the cycle once.

If calibrating the battery won’t help, the other obvious but sometimes forgotten software troubleshooting that must be done is to install system updates and making sure that all apps are compatible. Go under Settings and check if there’s any pending system update you haven’t installed for a while. If the phone’s software is up-to-date, go over your list of apps and make sure that ALL of them are compatible with the current Android version. Some apps can cause problems if they not designed or updated to work with a certain Android version. Most mainstream or popular apps are most likely updated so you have to focus on less known ones. Visit their installation pages in Google Play Store and check the reviews of other users to see if others are experiencing the same issue as yours. If you recently installed an app prior to noticing the problem, try to see if it’s the one that’s causing the problem by removing it from the system. If you install apps from third party sources outside the Play Store, it’s your responsibility to screen them and ensure that they are to be trusted. Better still, try to boot the phone to safe mode and see if there’s a difference. Refer to the steps above on how to do it.

Finally, if nothing changes and the issue stays after doing the steps above, do a factory reset. This is the final solution that you can try on your end. If the issue remains after a factory reset, that’s proof that your issue is hardware in nature. You must send the phone in so it can be repaired or replaced.

As a workaround, you can also temporarily use a wireless charger if you want to fast charge. Simply visit your local Samsung store and get a new one if you don’t have one at the moment.

Problem #3: AT&T Galaxy S7 edge can’t connect to mobile data when on T-Mobile network

Hi. I have a Samsung Galaxy S7 edge. I recently moved from AT&T connection to T-Mobile. After I moved to T-Mobile, internet is not working on my phone. It gets connected only when there is a wi-fi. I got tired calling to AT&T, T-Mobile customer services as nobody could fix it. I was said that my phone is provided with internet data and it may be a problem with the phone. I tried all the possibilities by changing the settings. It’s so annoying when you have a smart phone and don’t have internet. Please help me and suggest a solution for this. Thanks in advance! — Arpana

Solution: Hi Arpana. The first thing that you want to do is to ensure that you have an active T-Mobile mobile data subscription. If you don’t have one, there’s no amount of troubleshooting that you can do to make mobile data connection to work. For this one, you have to contact T-Mobile so you can confirm with them if your mobile data service is working. Alternatively, you can try to insert your SIM card to another compatible phone and see if you can make mobile data connection to work. In a GSM network like T-Mobile, the phone’s APN settings are automatically configured once the SIM card first tries to establish contact with the carrier. If that doesn’t happen there may be an issue with your account so you want to ask help from your carrier.

Secondly, you want to make sure that your phone, which may still be running the full AT&T software configuration is properly set up to allow mobile data connection with T-Mobile. Make sure that you AT&T has cleared the phone correctly from their system. If it’s not been network unlocked properly, that can lead to an issue like the one you’re experiencing. For this reason, you want to work with AT&T.

Once you’re 100% certain that you have an active mobile data subscription with T-Mobile and the phone has been network unlocked by AT&T and not blacklisted, you then want to ensure that the phone has the correct APN settings. T-Mobile technical support should be able to help you with the set up so make sure that you contact them for it.

Problem #4: Galaxy S7 won’t turn on after getting several “App has stopped working”

I received a notice that I had a virus on my phone and didn’t recognize the sender so I did not click OK to start the virus removal. It was at that time that I started seeing messages that several the “App has stopped working.” I then shut the phone down and tried to normally reboot the phone, then reboot in safe mode. Then I tried to remove the cache. Nothing changed. Each time I would reboot the phone it would show the Verizon screen trying to load but never proceeded to the windows or main screen.        — Alicia

Solution: Hi Alicia. If you are absolutely sure that your phone has no physical damage (never dropped, got wet, or exposed to elements such as extreme cold or heat), then it’s possible that it may be infected with a malware. To fix that you can try to manually flash the software via Odin or Download mode. If you haven’t done it before, we recommend that you let a professional do it for you instead as flashing requires certain level of knowledge about Android. Bring the phone to your carrier or Samsung and let their technician assess the issue for youi.

We don’t recommend flashing for Android beginners but if you want to try it, you must look for a guide for your particular phone model. You can use Google to search for a good one online. You also need to do some basic research on how to do it properly so you’ll not cause complications. Flashing is basically a modification of core Android system files so if mess it up, it can brick your phone for good.

Problem #5: Deleted emails from laptop won’t go away in Galaxy S7

Email will not delete from the S7 after I have deleted it from my laptop. It still works on my old S4 but will not work on the new S7. I called Verizon; all the server settings are correct. I have checked “never” to delete email on the S7 and “delete from server” on the laptop. I have uninstalled and reinstalled the app. Samsung has no answer for me, Verizon has not answer for me either. Wondering if there may be a glitch and if so how do I remedy it? — Twrhll

Solution: Hi Twrhll. We don’t know if we understand your issue correctly but if you’re  emails remain in your S7’s email app inbox after you’ve deleted messages in your laptop, there may be a sync issue with the server that you need to address. What that means is that the command done in your laptop is not being communicated by your email server to other devices that host your email accounts like your S7. This may be the result of a server issue or a phone syncing problem. Contact your email service provider and ask them for assistance on how to fix the issue. They should also help you troubleshoot the possibility that the issue may be phone related.

Problem #6: Galaxy S7 keeps showing “sending” even after SMS has been sent

After a recent update in March, periodically when I create and send a text message it indicates “sending” status permanently however recipients actually receive the text and reply.

Also, i am no longer receiving notifications when I get a new text. I have to open messages and then I see a bunch of new texts that I was not aware had come through.

I tried powering off and on the phone and then everyone that I had texted in the week before received all of my texts AGAIN. I have stopped texting because of this. Is this something others are also experiencing since the newest update? — Tam

Solution: Hi Tam. An issue like this is almost always limited to the subscribers of the carrier that’s having a problem. We haven’t received reports from other Samsung users so it may be isolated to your device or to your carrier.

If SMS has now returned to normal after you restarted the device, try to clear the messaging app’s cache and data to ensure that said app is returned to its default state first. Here’s how it’s done:

  1. Open the Settings menu either through your notification shade (drop-down) or through the Settings app in your app drawer.
  2. Navigate down to “Apps”. This may be renamed to something like Applications or Application Manager in OEM skinned versions of Android 6.0.
  3. Once in there, click on an application.
  4. You’ll now see a list of stuff that gives you information about the app, including Storage, Permissions, Memory Use, and more. These are all clickable items. You’ll want to click on Storage.
  5. You should now clearly see the Clear Data and Clear Cache buttons for the application.

Once you’ve done the procedure above, observe the phone for a week to see if there’s any difference. If the issue returns, do a master reset (steps provided above) and observe the phone again for another week. If the issue stays after that, contact your carrier to see if there’s something that they can do about it.

Problem #7: Galaxy S7 wifi freezing and crashing after installing Android Nougat update

Hey. I was reading about a ton of articles on your page and despite all that and having tried some, my S7 edge still is funky. Especially when it comes to wifi connectivity, which seems to have started when i updated to Nougat. It happens every so often now, more so when it connects to a new network (I’ve been travelling of late and i basically have to connect to a new one every day almost).

What happens is: I would connect to a network, put the password in, and then it could stay on ‘connecting’ then it dies (and resets). It could also freezes the settings page and i would have to close it.

A third option also is for it to just drop it and not connect. When it resets, it is not satisfied with just one. Sometimes it does 2 after it tries to connect.

Also, this happens when i switch too quickly between known wifi too. It boggles me how this could be.

I love this phone and all but this has been more frequent of late and it is rather irritating. Hope to hear from you. — Aston

Solution: Hi Aston. We receive wifi problems every now and then but nothing like particular case has been reported so far. This may be a due to a firmware bug, an incompatible app, or poor software coding. If you’re positive that this happens right after installing Android Nougat update, you must do the usual dose of software troubleshooting namely the cache partition wipe, booting to safe mode, and factory reset. All three procedures are suggested for Jake above so be sure to do them.

Once you’ve factory reset the phone, be sure not to reinstall apps right away. Allow your phone to run for a few hours with only the basic preinstalled apps so you can observe how wifi works. If the problem continues even when there are no third party apps involved, that’s an indication that the bug may be firmware-related. This means that the update you received is buggy in itself. Unfortunately, this problem can only be fixed by the developer of the firmware. If you downloaded the update by air (OTA), contact your carrier so they can make necessary steps to fix it. An issue like this does not have an instant solution and it may take some time to release a patch.

Problem #8: Galaxy S7 won’t charge and keeps vibrating when connected to a charger

My Samsung Galaxy S7 when plugged into either the wall socket or android box direct power the phone pulsates constantly but does not charge. So far I have tried soft reset several times. Have factory reset, drained any excess power from phone. Battery is fine, I have tried everything I can think of and everything on your advice list and am now thinking the only thing it can be is the charge port. It maybe faulty as it was all working perfectly until three days ago.

Initially I tried plugging it into my android box which did charge the phone up to 67% but hasn’t worked since and now the phone will not charge regardless of what I plug it into. It merely pulsates again. Other than that it’s got to be the charge port as as of this morning I have done a factory reset and completely  wiped the phone but yet it will not charge? Any advice you can give me would be great thanks. — Damian

Solution: Hi Damian. The charging port is one of the factors that should be considered when dealing with an issue like this. If you’ve exhausted all software troubleshooting, especially factory reset, you can assume that bad hardware must be to blame. Factory reset is the most that you can do on your end. Because it restores all software settings back to their defaults, factory reset can easily fix any software cause that may be causing your problem. If nothing changes after doing it though, that’s proof that there’s no software issue involved.

If you want to get to the bottom of the problem, you must send the phone in so the hardware can be checked.

Problem #9: Galaxy S7 won’t send SMS to some contacts after using it as a hotspot

I have a Galaxy S7. I have only had it a couple months and last night I used my phone as a hotspot for my niece at dinner. My phone was working fine and then when I got home all of a sudden it won’t send texts to friends of mine; they will only send to my sister and my mom . My mom is on the same bill as me but my sister has a pay as you go phone. I’m not sure if the hotspot did something to my phone but it won’t send messages. The hotpot is off, I’ve tried restarting my phone multiple times. I’ve cleared the cache and nothing so far has worked. What else can I do to fix this? — Krysta

Solution: Hi Krysta. We have no way of knowing for sure what may have happened that caused this erratic behavior but to start your troubleshooting, we recommend that you delete the messaging app’s cache and data first.

  1. Open the Settings menu either through your notification shade (drop-down) or through the Settings app in your app drawer.
  2. Navigate down to “Apps”. This may be renamed to something like Applications or Application Manager in OEM skinned versions of Android 6.0.
  3. Once in there, click on an application.
  4. You’ll now see a list of stuff that gives you information about the app, including Storage, Permissions, Memory Use, and more. These are all clickable items. You’ll want to click on Storage.
  5. You should now clearly see the Clear Data and Clear Cache buttons for the application.

If wiping the cache and data of the app won’t work, try isolating the issue further by using another messaging app. There are many free messaging app in Google Play Store that you can use for this exercise. Basically, your aim is to determine if the issue lies on the messaging app or not. If messaging works normally when using a third party app, you should consider doing a factory reset. Refer to the steps above on how to do this procedure.

 


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