How to fix a Samsung Galaxy A7 2017 smartphone that won’t send MMS messages [Troubleshooting Guide]

MMS or multimedia messaging service allows you to send each other messages with videos, images, and other media files. The service is based on SMS. Files sent through MMS count against both the sender's and recipient's monthly data limits in their respective phone service plans. Carriers also specify a limit to MMS size, usually at 300kb. MMS messages that exceed the file size limit won't be sent or downloaded. For MMS to work, a mobile data connection is necessary unless your carrier provides specific app for you to connect over Wi-Fi. If any of the specified requisites aren't met, MMS messaging won't work as intended.

Highlighted in this post are a few helpful workarounds that can be used when dealing with MMS sending failure issue on your Galaxy A7 2017 smartphone. Read on to find out what to do if MMS won't send on this Samsung handset.

Now, before anything else, if you have other issues with your phone, make sure you drop by our troubleshooting page for we have already provided solutions to hundreds of problems reported by our readers. Odds are that we may have already provided a solution to the problem you currently have so try to find issues that are similar with yours on that page and feel free to use the solutions we suggested. If they don't work or if you need further assistance, fill up our Android issues questionnaire and hit submit to contact us.

How to troubleshoot Galaxy A7 that can't send MMS

Before you proceed with these troubleshooting methods, check the mobile data coverage/reception indicator on your device. You should have a steady 1 to 2 (or more) bars of 2G, 3G, or 4G network coverage for MMS to work properly. Also check and ensure your messaging inbox and outbox still have ample space for new messages. Smartphones have a limit on the amount of stored messages in the inbox and outbox. Exceeding the handset's limit will result to a failure in sending or receiving SMS and MMS messages. If necessary, delete as many old or unwanted messages from your message folders. If you're on a prepaid account, make sure you have enough credits to use MMS. If that won't help, then troubleshoot your phone software.

First solution: Turn Mobile Data off and on again.

To send and receive MMS on your phone, mobile data must be enabled. If your device still fails to send MMS with mobile data enabled, turning the feature off and on shortly can help. Here's how:

Tap Apps.
Tap Settings.
Tap Connections.
Scroll to and tap Data usage.
Tap the switch next to Mobile data to turn the feature off or on. If it's turned on, turn it off shortly and then back on.

Doing so will refresh your phone's mobile data functions and clears any minor glitches that might have caused pertinent issues to occur.

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Second solution: Reboot your phone (soft reset).

A device restart or soft reset can also fix the problem especially if it's just occurring as a minor issue inflicted by random software glitches. Aside from clearing software glitches, a soft reset also clears and refreshes the internal memory for optimal performance. To soft reset your Galaxy A7, follow these steps:

Press and hold the Power button for a few seconds or until the menu options appear.
Tap on Power off then tap OK. Your phone then shuts down.
After 30 seconds, press and hold the Power button until the device reboots.

This won't delete any data and personal information you stored on the internal memory of your device, so backups aren't necessary.

Third solution: Reset network/APN settings to defaults.

To get the best possible network connection, you can try resetting your network connection on the phone and then configure network manually. This should help clean up any problems that could be preventing access to the network. Here's what you should do then:

Go to Settings.
Tap More Networks.
Tap Mobile Networks.
Tap Access Point Names.
Tap the 3 vertical dots or Menu icon.
Then select Reset to Default option. This will restore the APN settings to the default values that match your SIM. If you're using a SIM from another network in your device, the APN will reset to the default for that network.
Tap Save to apply the recent changes you've made to your phone's network settings.
Reboot your phone to refresh apps and system functions.

To perform a manual network selection, navigate to your phone's Network-> Carrier-> Cellular menu and then manually select any network other than the default. To complete the network session refresh, restart your phone. For further assistance in manually configuring APN settings on your phone, contact your carrier to ensure you're entering the correct information.

Fourth solution: Update phone software to the latest version.

Among other factors that can prevent your device from sending MMS are bugs and malware. Should this be the case, installing update can help. Software updates also contain fix patch to clear any existing bugs and malicious software that caused different forms of software malfunctions. To check for available update via over-the-air, follow these steps:

Open the Apps menu.
Tap Settings.
Tap About device.
Tap Software update.
Then select Update Now or Download updates manually.

Creating a backup of critical information is recommended before you begin updating. Doing so will ensure you've got copies of all your significant files. Don't forget to restart your device when the update is finished. This will ensure all new system changes are properly implemented.

Fifth solution: Restore device settings to factory defaults.

If your device still won't send MMS after exhausting all prior methods, then you're likely dealing with a more serious system issue that requires more advanced solution. In that case, you can resort to performing a full system reset or master reset. Doing so will wipe everything from your device and then restore the factory defaults. If you wish to proceed, back up all your files then follow these steps to reset your Galaxy A7 to its factory defaults:

Go to Settings.
Tap Backup and Reset.
Tap Factory Data Reset.
Tap Reset Device.
Then tap Delete All to confirm.

Allow your device to finish resetting and then reboots. After it boots up, you should see it running with the default apps, settings and device configuration. Set up your Wi-Fi network to reconnect, and then enable necessary features including mobile data. Test to see if your device can now send MMS.

Other options

Contact your network service provider or carrier to report the issue for further assistance and advanced solutions. There might be some advanced network settings or the APN settings to be configured manually on your device. Also ensure that your account status and services are in good standing and active. If necessary, ask your carrier to refresh your APN settings and reprovision your device on their end.

In the case where your Samsung Galaxy A7 2017 stopped sending MMS after installing new software update, reporting the issue to Samsung Support is recommended. This can be deemed among other post update issues to deal with a fix patch.

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