How To Fix Verizon MMS Error Code 128?

Verizon users may sometimes encounter an error message with code 128 when trying to send or receive picture and video messages (MMS). This usually indicates an issue with the network connection that is preventing the successful delivery of MMS messages. Fortunately, there are a few troubleshooting steps Verizon customers can follow to resolve error code 128 and get MMS working properly again.

How To Fix Verizon MMS Error Code 128?

In this comprehensive guide, we will cover the main causes of Verizon MMS error 128 and provide step-by-step instructions to fix it on both Android and iOS devices. Whether the error occurs while on mobile data or Wi-Fi, our solutions will help you send and receive MMS messages seamlessly. Read on to learn how to troubleshoot and resolve Verizon MMS error code 128 for good.

What Causes Verizon MMS Error Code 128?

There are a few potential causes of the MMS error 128 on Verizon devices:

  • Outdated carrier settings – Verizon periodically releases updated carrier settings files that contain important network configuration data. If these settings are outdated, it can prevent MMS functions from working properly.
  • SIM card issues – Sometimes a faulty or damaged SIM card may be the reason behind SMS/MMS failure errors like 128. Reseating or replacing the SIM card can resolve such problems.
  • Software bugs – Bugs in the operating system software or apps related to messaging can also lead to error 128 for MMS operations. Updating your device’s software is recommended.
  • Network connectivity problems – Weak cellular signals, switching between 3G/LTE networks, Wi-Fi handoff issues, etc. can all interfere with MMS delivery and cause error code 128.
  • Incorrect MMS settings – If the MMS messaging settings like APN, MMSC address etc. are configured incorrectly, MMS functions will fail.
  • Account restrictions – Some parental control or account restrictions may block sending/receiving MMS messages resulting in error 128.

So in summary, error 128 arises due to connectivity and configuration issues that prevent successful MMS messaging over Verizon’s network.

How to Fix Verizon MMS Error Code 128 on Android

If you encounter error 128 on your Verizon Android device, here are the steps to troubleshoot and resolve it:

1. Check for Carrier Settings Update

Go to Settings > System > Advanced > System updates on your Android device and check if there is a carrier settings update available. Install it and then try sending MMS again. The latest carrier settings from Verizon can fix compatibility issues causing error 128.

2. Reseat the SIM Card

Turn off your Android device, remove the SIM card, inspect it for any damage or dirt, gently wipe with a clean cloth if needed, and insert the SIM card back into the SIM slot properly. Reboot your device and try MMS again. Reseating the SIM card will refresh the cellular connections.

3. Reset Network Settings

Go to Settings > General management > Reset > Reset network settings. This will reset all network connections on your device including Wi-Fi, mobile data, and Bluetooth. Verify MMS messaging works after the network settings reset.

4. Verify MMS Configuration Settings

Go to Settings > Connections > Mobile networks > Access point names. Make sure the MMS settings here match Verizon’s recommended APN settings:

  • Proxy: (not set)
  • Port: (not set)
  • Username: (not set)
  • Password: (not set)
  • Server:
  • MMSC:
  • MMS Proxy: not set)
  • MMS Port: (not set)
  • MCC: 311
  • MNC: 480

Edit the APN settings if needed and save changes. Restart your device and test MMS again.

5. Toggle Airplane Mode

Turn on Airplane mode for 30 seconds and turn it off. This will force close all network connections temporarily. Now try sending MMS. If the error persists, move on to the next step.

6. Clear Cache and Data for Messaging Apps

Open Settings > Apps/Application manager and browse to messaging apps like Android Messages. Tap the app, select Storage, then click Clear cache and Clear data. Do this for other messaging apps too like WhatsApp. Reopen the messaging apps and check if MMS works.

7. Update Software and Apps

Go to Settings > System > System updates and install any available software updates for your Android device. Also update messaging apps like Android Messages or WhatsApp from the Play Store. Software updates often include bug fixes for MMS issues.

8. Remove Account Restrictions

Check if any parental control filters or account restrictions are enabled for the device that could be blocking MMS capabilities. Disable those restrictions and verify if MMS works properly without error 128.

9. Factory Reset Device

If all else fails, backup data and conduct a factory reset of your Android device. This will wipe the phone clean and restore original software and settings which should resolve persistent error 128 for MMS messaging.

Following these troubleshooting steps will help identify and fix the root cause of Verizon MMS error code 128 on your Android device. Be patient and systematically try each solution to resolve the error.

How to Fix Verizon MMS Error Code 128 on iPhone

For Verizon customers facing MMS error 128 on iPhone, here are some effective troubleshooting tips:

1. Update iOS Software

Go to Settings > General > Software Update and install the latest iOS updates available for your iPhone. Apple provides bug fixes and performance improvements for MMS messaging in iOS updates.

2. Verify Cellular Data is On

Check Settings > Cellular and make sure Cellular Data is toggled on. MMS relies on cellular data connectivity, so ensure it is enabled. Disable Wi-Fi to force MMS traffic over cellular if needed for testing.

3. Reset Network Settings

Go to Settings > General > Reset > Reset Network Settings. This will reset all network connections on the device. Verify MMS works after network settings reset.

4. Update Carrier Settings

On the iPhone, go to Settings > General > About. If a carrier update is available, you will see an option to Update Carrier Settings. Tap it to get the latest optimized settings from Verizon.

5. Reinsert SIM Card

Eject the SIM card from your iPhone and gently clean it with a cloth if required. Reinsert the SIM card properly into the SIM tray. Reboot the iPhone and check if MMS works.

6. Configure MMS Settings

Go to Settings > Cellular > Cellular Data Network and set the following APN settings for MMS on Verizon iPhone:

  • Username: (leave blank)
  • Password: (leave blank)
  • MMSC:
  • MMS Proxy: (leave blank)

Save the MMS configuration and retry sending/receiving MMS messages.

7. Reset Network Settings Again

If the earlier network settings reset did not help, do it again from Settings > General > Reset > Reset Network Settings. This should reconfigure cellular data and MMS settings.

8. Contact Verizon Support

If you still see error 128, contact Verizon support either through live chat on their website or by scheduling a call from within your My Verizon app. They can check your account specifics and provision the device properly for MMS.

With some dedicated troubleshooting, Verizon customers can resolve irritating error 128 issues when sending/receiving MMS messages on iPhone models.

Key Takeaways and Conclusion

To recap, the common fixes for Verizon MMS error code 128 include:

  • Update carrier settings and iOS/Android software
  • Check cellular data and MMS configuration
  • Reset network settings
  • Remove account restrictions blocking MMS
  • Re-insert SIM card to refresh connections
  • Clear cache/data for messaging apps
  • Factory reset device if all else fails

MMS error 128 arises due to outdated settings, network problems, software bugs, SIM card issues, or account restrictions. By methodically applying the right solution, Verizon subscribers can get MMS working reliably again on both iPhones and Android phones.

Persistent error 128 problems may require contacting Verizon support for further investigation and resolution based on your account status. With the carrier’s assistance and following the steps outlined in this guide, Verizon users can successfully troubleshoot error 128 and resume sending/receiving MMS messages and media content.

Frequently Asked Questions

Q: Why does Verizon MMS error 128 happen?
A: Error 128 occurs primarily due to outdated carrier settings, network connectivity issues, incorrect MMS configuration, software bugs, SIM card problems, or account restrictions blocking MMS capabilities.

Q: How can I update carrier settings on my Verizon iPhone?
A: Go to Settings > General > About and tap “Update Carrier Settings” if an update is available to download latest optimized data from Verizon.

Q: Does MMS error 128 affect just sending or receiving MMS?
A: Error code 128 can impact both sending and receiving of MMS messages and media over Verizon’s network.

Q: Is Verizon MMS error 128 specific to just iPhone or Android models?
A: No, MMS error code 128 can occur on any Verizon device including both Android phones and iPhones. The troubleshooting steps are similar across platforms.

Q: Will resetting network settings delete any data on my Verizon device?
A: No, resetting network settings only erases network configuration data and won’t delete any personal data or accounts on the device.

Q: How can I back up data before factory resetting my Verizon phone?
A: You can backup your Verizon Android device data to Google Drive and iPhone data to iCloud before performing a factory reset which wipes all data.

Q: Does Verizon MMS error 128 affect just 4G LTE or also impacts 3G networks?
A: Error code 128 can occur on both Verizon’s 4G LTE as well as 3G networks when sending/receiving MMS messages.

Q: Will switching from Wi-Fi to mobile data resolve Verizon MMS error 128?
A: Sometimes switching from Wi-Fi to Verizon’s 4G LTE or 3G network can help resolve error 128, as Wi-Fi handoff issues can disrupt MMS delivery.

Q: Is there a way to disable MMS capabilities completely on my Verizon number?
A: Yes, you can contact Verizon support and request them to block/disable MMS functionality on your number if you wish.

Q: Does Verizon MMS error 128 also impact group MMS messaging?
A: Yes, error code 128 can disrupt both individual and group MMS messages over Verizon’s network. Applying the fixes will resolve it for both.

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