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How to fix an LG V35 ThinQ smartphone that won’t send MMS, error MMS sending failed [Troubleshooting Guide]

When your device suddenly failed to send MMS messages, it may be experiencing some sort of network connectivity issues. It’s also possible that the messaging app in use is glitching or acting up at the moment. Other possible reasons are account-related problems, invalid settings, as well as faulty updates.

All these factors must therefore be verified to determine which exactly from them is the underlying cause. To give you some inputs on how to deal with the same issue on your LG V35 ThinQ smartphone that won’t send MMS, I’ve mapped out some simple solutions for you to try on.

Before we move on to our troubleshooting, if you are looking for a solution to a different issue, make sure you drop by our troubleshooting page as we’ve already addressed some of the most common problems reported by our readers. Find issues that are similar with yours and use the solutions we suggested. If you still need our help after that, then feel free to contact us by filling up our Android issues questionnaire.

How to troubleshoot LG V35 ThinQ that won’t send MMS

If you’re relying on Wi-Fi for MMS, check and confirm that Wi-Fi is turned on. If you’re relying on mobile data for MMS, verify and ensure that cellular data or mobile data is turned on.

To do so, go to Settings-> Network-> Mobile data, then make sure the switch is set to the ON position. An indication that cellular data is on is the notification bar showing a data service icon like 3G, 4G, or LTE.

If that doesn’t do any good and MMS sending still failed on your LG V35 ThinQ smartphone, then try these subsequent workarounds.

First solution: Force quit messaging app then soft reset your phone.

If this is the first time you experience the problem with MMS sending on your LG V35 ThinQ smartphone, then it could be just among other software glitches affecting the messaging app or device software itself. Should this be the trigger, a simple solution you can try first is to quit and restart your messaging app then carry out a soft reset on your phone. This method effectively gets rid of minor software flaws that may be preventing you from sending MMS either through Wi-Fi or mobile data.

To quit or force quit your messaging app, follow these steps:

  1. Swipe down from the Notification bar.
  2. Tap the Settings icon.
  3. Tap the General tab.
  4. Select Apps & notifications.
  5. Tap App info.
  6. Tap to select your messaging app.
  7. Select Force Stop option.
  8. Then tap OK to confirm.

To soft reset your LG V35 ThinQ smartphone, perform any of these methods:

  1. Press and hold the Volume Down and Power buttons together for at least 8 seconds until the phone restarts.
  2. Press and hold the Power/Lock button and then select Restart from the menu options.

Restarting the phone is another way to refresh the internal memory and operating system for smoother performance.

Second solution: Update device software to the latest version available.

Keeping the device software up-to-date is recommended to ensure best performance. Software updates also offer fix patches to clear system bugs that might have caused problems to certain features of the phone, including MMS functions. To manually check for software update on your LG V35 ThinQ smartphone, follow these steps:

  1. Tap Settings.
  2. Tap on the General tab.
  3. Tap Update Center.
  4. Tap Software Update.
  5. Then tap the option to Check for Updates.

If an update is available, make sure that your phone can connect to the Internet then follow the rest of the onscreen instructions to download and install the new software version on your device.

Third solution: Reset APN settings/network settings.

APN (Access Point Name) settings are mainly used to set up a connection to the gateway between your carrier’s cellular network and the public Internet. These settings are read by your carrier then make sure that the IP address is correct. An APN has the network settings needed by your phone to connect to your Internet service provider/carrier. If the APN settings are messed up in some ways, then cellular data network services are likely to succumb into errors. To make sure this isn’t what’s halting your device from sending MMS, you can reset the APN settings on your LG V35 ThinQ to restore the default values. Here’s how:

  1. Tap Settings from the Home screen.
  2. Tap the ‘General’ tab.
  3. Tap Restart & reset > Network settings reset > RESET SETTINGS.
  4. Finally, tap Reset Settings to confirm action.

A ‘Network settings have been reset’ message briefly flashes to indicate the reset is complete.

Fourth solution: Wipe cache partition.

Wiping cache partition is often the key to rectifying errors and glitches that are triggered by corrupted cached files or temporary system data. If you started to have trouble sending MMS after installing an update, then you should consider wiping the cache partition on your LG V35 ThinQ smartphone to rule out corrupted cache from the possible triggers. Here’s how it’s done:

  1. From the Home screen, tap Settings.
  2. Tap the ‘General’ tab.
  3. Tap Storage > Internal storage.
  4. Wait for menu options to finish calculating.
  5. Tap on Free up space.
  6. Tap on Temporary files & raw files.
  7. Select any from the given options including Cached data, Clip tray temporary files, or Raw files from camera
  8. Tap Delete > DELETE.

Wait until the phone is finished wiping cache partition and once it’s done, do a soft reset to clear and refresh the internal memory.

Fifth solution: Factory data reset/master reset.

A master reset or factory data reset should be considered among the last options to deal with persistent software issues, particularly those that are attributed to malware and tough bugs. This process will erase all data from the phone including bugs and malware. Should you wish to give it a shot, don’t forget to back up your important files to cloud, computer or other backup storage for easy recovery. Once you’re all set, follow these steps to master reset or factory data reset your LG V35 ThinQ smartphone:

  1. Turn off the device.
  2. Press and hold the Power and Volume down buttons.
  3. When the LG logo appears, quickly release and then re-hold the Power button while continuing to hold the Volume down button.
  4. 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.
  5. Press the Power button to reset the device.

After the reset, default settings are restored on your phone. This means you’ll need to set up your device and enable necessary features including Wi-Fi and cellular data. Then try to create a sample MMS message then test to see if you’re now able to send it. You can try to use other messaging app to make sure the problem isn’t isolated to an application.

Other options

Escalating the problem to your network service provider or carrier can be considered an option if your LG V35 ThinQ smartphone is still unable to send MMS after exhausting all applicable solutions. Ask your carrier to verify and ensure that MMS is active and supported on your account. Also check with for any network outages that might have halted network-related services from working in your place at the moment.

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