How To Fix LG V40 ThinQ Not Sending Or Receiving MMS

The #LG #V40 is a premium flagship phone released recently which has several outstanding features. This phone has a solid design made of an Aluminum frame with Corning Gorilla Glass 5 on both the front and back. It uses a 6.4″ QHD+ FullVision OLED, has a triple rear camera system, and uses the latest Snapdragon 845 processor combined with 6GB of RAM allowing the device to run apps smoothly. Although this is a solid performing phone there are instances when certain issues can occur which we will be addressing today. In this latest installment of our troubleshooting series we will tackle the LG V40 ThinQ not sending or receiving MMS issue.

If you own an LG V40 ThinQ or any other Android device for that matter then feel free to contact us using this form. We will be more than happy to assist you with any concern that you may have with your device. This is a free service we are offering with no strings attached. We however ask that when you do contact us try to be as detailed as possible so that an accurate assessment can be made and the correct solution can be given.  

How To Fix LG V40 ThinQ Not Sending Or Receiving MMS

Problem: I have an unlocked LG V40 ThinQ that I’m using on t- mobile’s Ultra Mobile. I’m unable to send or receive pictures through MMS. I configured the APN correctly, and talked to a Ultra Mobile support representative on the phone and after triple checking the APN, reseating the SIM, and restarting the phone a dozen times, it still doesn’t work. They told me something must be wrong with the phone. What could that be?

Solution: Before troubleshooting this issue it’s best to make sure that your phone is running on the latest software version. If an update is available then I suggest that you download and install it.

Make sure that the phone is connected to a mobile data network

The first thing that you will need to do is to make sure that the phone is connected to a strong mobile data connection. It’s best to have an LTE connection so as to make the sending and receiving of MMS much faster.

Clear the cache and data of the messaging app

There are instances when corrupted data stored in the messaging app can cause this problem. To make sure that this isn’t what’s causing the problem you will have to clear the cache and data of the messaging app.

  • From the Home screen, tap Settings.
  • Tap the ‘General’ tab > Apps & notifications.
  • Tap App info.
  • Tap the filter to select the following: All, Enabled, Disabled
  • Tap the desired app, then Storage.
  • Tap Clear cache or Clear Data then YES

Check the phone APN settings

The APN settings of your device allows it to connect to the mobile data network and allows for the sending and receiving of MMS. Make sure that you have the correct settings installed in the phone.

To access the APN settings

  • From the Home screen, Settings.
  • Tap the ‘Networks’ tab.
  • Tap More > Mobile networks > Access Point Names.

The Ultra Mobile APN settings are as follows

  • Name: Ultra
  • APN: Wholesale
  • Proxy: blank
  • Port: 8080
  • Username & Password: blank
  • Server: blank
  • MMS:
  • MMS Proxy: blank
  • MMS Port: blank
  • MCC: 310
  • MNC: 260
  • Authentication Type: blank
  • APN Type: default,supl,mms

Check if the problem occurs in Safe Mode

THere are instances when an app you downloaded can cause this problem. To check if this is what’s causing the problem you will have to start the phone in Safe Mode as only the pre-installed apps are allowed to run in this mode.

  • With the screen on, press and hold the Power key.
  • In the options menu that displays, press and hold Power off.
  • When prompted to restart in Safe Mode, tap OK.
  • After your device restarts, it displays Safe mode at the bottom of the screen.

If you are able to send and receive an MMS in this mode then the problem could be  caused by an app you downloaded. Find out what app this is and uninstall it.

Wipe the cache partition

Your phone will store temporary data in a dedicated partition in its storage space which helps the device run apps smoothly. If this data gets corrupted then issues can occur on the device. To make sure that this is not what’s causing the problem you will have to clear the cache partition of the phone.

  • From the Home screen, tap Settings.
  • Tap the ‘General’ tab.
  • Tap Storage > Internal storage.
  • Wait for menu options to finish calculating.
  • Tap Free up space.
  • Tap Temporary files & raw files.
  • Select the following options: Cached data, Clip tray temporary files, Raw files from camera
  • Tap Delete > DELETE.

Perform a factory reset

One last troubleshooting step you can perform if the phone is still unable to send or receive an MMS is a factory reset. Take note that this will erase your phone data so it’s best to backup the phone data before proceeding.

  • Back up data on the internal memory before performing a factory reset.
  • From the Home screen, Settings.
  • Tap the ‘General’ tab.
  • Tap Restart & reset.
  • Tap Factory data reset.
  • If desired, tap the Erase SD card checkbox.
  • Tap RESET PHONE – Delete all – RESET

You can also perform the factory reset using the hardware keys.

  • Backup all data on the internal memory before performing a master reset.
  • Turn off the device.
  • Press and hold the Power and Volume down buttons.
  • When the LG logo appears, quickly release and then re-hold the Power button while continuing to hold the Volume down button.
  • When the ‘Delete all user data (including LG and carrier apps) and reset all settings’ message appears, use the Volume down button to highlight Yes.
  • Press the Power button to reset the device

Once the reset is complete you should setup the APN settings again.

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Chad Buenaflor

Chad has been in the tech industry since 2000. He has a degree in Electronics Engineering and is interested in the hardware and software side of technology. Initially working for a Japanese semiconductor company as a Test Engineer for nearly 10 years, he then pursued his passion for internet technology by working for the support team of Time Warner Cable then finally joining TheDroidGuy as one of their troubleshooting and tech writers. On his free time he plays his favorite games on his PC, Xbox Series X, and Android phone. Contact me at Email

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