,

Unlocked Samsung Galaxy S7 Edge cannot send SMS, shows “Connection to servers lost. Please try again” error

We have investigated and solved a lot of texting problems with the #Samsung Galaxy S7 Edge (#S7Edge) already but we are still getting a bunch of emails and request for assistance each day from our readers. It’s because the SMS service also covers MMS and many of the emails we received were requesting assistance about texting issues and we did provide solutions and troubleshooting guides only to be told they don’t work. We dug deeper and found out many were actually trying to send pictures through text (picture messaging), which the phone will automatically convert to MMS.

galaxy-s7-edge-cant-send-mms

So, in this post, I will address similar cases and below, you can read one of the messages we received from our reader who has issues sending SMS. Mid-way through the message you can read a phrase that suggests he actually was trying to send a picture but he was getting an error. Read on to understand more about the problem and learn how to fix it…

I have metro pcs but I bought an unlocked verizon phone from best buy. I was put on Tmobile network but paying a bill to metro pcs. Everything works EXCEPT when I try to send SMS messages. Everytime i try to send a SMS message for example if I try to send a picture it refuses to send it and says “connection to servers lost. Please try again”. I tried so many times to send a SMS messages and it keeps putting up the same message and it refuses to work. Please guys I need help. Please get back to me as soon as possible.

But before anything else, if you have other issues with your phone, make sure you visit our S7 Edge troubleshooting page for we have already answered or addressed hundreds of questions and problems sent by our readers. Just find issues that are similar to yours and use the solutions and troubleshooting guides we suggested if applicable. In case you need further assistance, fill up our Android issues questionnaire to contact us. Please provide sufficient information about the problem.

Troubleshooting Galaxy S7 Edge that can’t send a text message

As our reader described, he said he couldn’t sent a text message with a picture in it. Initially I thought it’s just another case of incorrect Message Center Number set on the phone but it’s clear now we don’t need to troubleshoot the SMS side of texting but the MMS.

Before we go to our troubleshooting, let’s try to take a look at some very important facts the reader mentioned:

  • Galaxy S7 Edge is an unlocked Verizon phone
  • His service provider is Metro PCS
  • Metro PCS is powered by T-Mobile (the carrier)
  • Text message won’t send if there’s picture in it
  • The error “Connection to servers lost. Please try again.” pops up

This troubleshooting guide will be based on these facts so if you have a similar issue, this post may probably help you.

When sending or receiving MMS (SMS with pictures, SMS with emojis and special characters, SMS with attachments, group messages, etc.), mobile data is required as multimedia messages are way too large for the cellular network. Basically, your phone is connected to two networks when it’s powered on; it’s connected to the cellular network for SMS and data network for MMS and internet needs.

When you compose a text message and say attach a picture to it, the phone will automatically convert it from SMS to MMS so it would be sent over mobile data network. That being said, the first thing you need to do is to check whether mobile data is enabled on your phone or not.

How to Enable Mobile Data on Galaxy S7 Edge

  1. From the Home screen, tap the Apps icon.
  2. Find and touch Settings to open it.
  3. Find and tap Data usage.
  4. Touch the Mobile data switch to turn on but if it’s enabled already, leave it be.

After enabling mobile data, try to compose a text message, attach a picture to it and send it to your own number. If it goes through and you can receive it then problem solved. However, if the problem remains, then we will have to look into another possible cause.

Let’s go back to the fact that it’s a Verizon phone that has been unlocked to be used with other networks. Units built for specific carriers often have a set of parameters already loaded during boot up and one of them is the APN (Access Point Name). The APN is necessary so that your phone can connect to the mobile data network that will allow you to send and receive MMS and be able to browse the Internet. The thing with unlocked phones is that you have to manually edit the APN so that everything will work fine with mobile data. Here’s where you go to edit the APN on your phone.

How to Edit APN on Galaxy S7 Edge

  1. From the Home screen, tap the Apps icon.
  2. Find and touch Settings to open it.
  3. Touch Mobile networks, then Access Point Names.
  4. You’ll probably see Verizon’s APN and you may not be able to edit it.
  5. To add a new APN, tap More and then touch New APN.
  6. Enter the correct APN but if you don’t have it, then call your service provider (in this case Metro PCS) and ask for it.
  7. After you’ve entered all necessary settings, tap Save.
  8. Now choose the APN you just created.

More often than not this is as far as you go when it comes to problems like this. However, if the problem persists after doing this, then you have no other choice but to reset your phone and then set it up again. Don’t forget to backup your all files and data that are saved in your phone’s internal storage as they’ll be deleted. Here’s how you do the reset after backing up your data:

  1. Turn off your Samsung Galaxy S7 Edge.
  2. Press and then hold the Home and Volume UP keys, then press and hold the Power key. NOTE: It doesn’t matter how long you press and hold the Home and Volume Up keys, it won’t affect the phone but by the time you press and hold the Power key, that’s when the phone starts to respond.
  3. When the Samsung Galaxy S7 Edge 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. NOTE: The “Installing system update” message may show on the screen for several seconds before displaying the Android system recovery menu. This is just the first phase of the entire process.
  5. Using the Volume Down key, navigate through the options and highlight ‘wipe data / factory reset.’
  6. Once highlighted, you may press the Power key to select it.
  7. Now highlight the option ‘Yes — delete all user data’ 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.

If your problem is similar to the problem I cited above, then the reset will fix it provided that the APN is properly setup after that. The reason why it comes last is because there’s a whole lot of things to do especially if you have so many files and data saved in the phone’s internal storage and that’s just about backing up. After the reset, you will have to build  your phone up from the scratch, download apps you use, etc. Nonetheless, it’s an effective troubleshooting method and it should be done if problems persist.

Troubleshooting Galaxy S7 Edge that can no longer send MMS

Personally, I did encounter issues wherein the phone could send MMS at first but after a few days, it won’t even if the mobile data is turned on and that the APN Settings are correct. When this happens to you, there’s a safe method you can immediately try. It’s safe because no data or files will be deleted, no apps will be uninstalled, and no settings will be changed. It’s as effective as the reset especially for issues that occurred out of the blue without apparent reason. What you need to do is just delete the old system cache so the phone will create a new one. Here’s how…

  1. Turn off the phone.
  2. Press and then hold the Home and Volume UP keys, then press and hold the Power key.
  3. When the Samsung Galaxy S7 Edge 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 wiping the cache partition. Once completed, highlight ‘Reboot system now’ and press the Power key.
  9. The phone will now reboot longer than usual.

This procedure is most effective if the problem started after an update as the corruption of the system cache often occur when the firmware is updated. I hope that the procedures I presented here as well as this troubleshooting guide can help you.

CONNECT WITH US

We are always open to your problems, questions and suggestions, so feel free to contact us by filling up this form. This is a free service we offer and we won’t charge you a penny for it. But please note that we receive hundreds of emails every day and it’s impossible for us to respond to every single one of them. But rest assured we read every message we receive. For those whom we’ve helped, please spread the word by sharing our posts to your friends or by simply liking our Facebook and Google+ page or follow us on Twitter.