Since WhatsApp was founded back in 2009, it has managed to take a central position in people’s communications. As of 2017, over 1 billion people are using WhatsApp to chat on a daily basis.  While the chat application doesn’t work well as always, it has some flaws. Most iPhone owners have experienced the WhatsApp not sending messages issue at some point. When this happens, people who depend on the app to communicate with friends, family members, and even clients are usually devastated. To eliminate this devastation, we will show you how to fix the WhatsApp not sending messages error. So, what are the solutions that you can apply to start communicating again using your WhatsApp?

Part 1: Check Your Internet Connection and Adjust its Stability

WhatsApp requires an internet connection for it to work. If the internet connection is unstable, the app won’t send your messages. If your internet connection is not stable, you can apply the following solutions to try and make it stable.

Restart Your iPhone

iPhone X

Step 1: Press and keep holding both the side and any of the volume buttons until a slider shows.

Step 2: Drag the slider to turn iPhone X off. If the device is off, press and keep holding the side button until the Apple logo shows.

restart iphone x

iPhone 8 and Earlier

Step 1: Press and hold the Side (or Top) button until a slider appears.

Step 2: Drag the slider to turn the iPhone off. Then press and hold the Side (or Top) button until an Apple logo appears.

restart iphone

Toggle Airplane Mode on and off

Step 1: Launch Settings.

Step 2: Toggle Airplane Mode on and then off.


Turn on Cellular Data

Step 1: Launch Settings and tap Cellular.

Step 2: Toggle on Cellular Data.

Confirm cellular service

Turn Wi-Fi off and on

Step 1: Open Settings and click Wi-Fi.

Step 2: Toggle Wi-Fi off and then on.

change to another wifi network

Reset the Network Settings

Step 1: Open Settings > General > click Reset.

Step 2: Tap Reset Network Settings and then confirm.

reset network settings

Other solutions related to internet connectivity that you can try include:

  • Connecting to different Wi-Fi hotspots.
  • Ensure that Wi-Fi is on even during the sleep mode.
  • Reboot the Wi-Fi router.
  • Contact the network provider and ensure that the APN settings are correctly configured.

Part 2: Reasons and Fixes for WhatsApp Not Sending Messages

Sometimes you may experience the WhatsApp not sending messages error even when you have a stable internet connection. There are some reasons why this might be happening. These include:

  • The contact you are sending the message to has already blocked you.
  • The initial verification process is not complete on your iPhone.
  • The number you are contacting is not saved correctly on your iPhone.
  • Insufficient iPhone storage.

The following solutions may help you fix the WhatsApp not sending messages problem if it is not being caused by an unstable internet connection.

Free up Storage Space

Deleting unwanted applications and files can help you eliminate the WhatsApp not sending messages problem. Here is how you do it:

Step 1: Open Settings > General > Usage/iPhone Storage.

Step 2: Tap Manage Storage and erase what you do not need on your iPhone.

General-Manage storage

Install the Latest WhatsApp

By re-installing WhatsApp on your iPhone, you might be able to fix the WhatsApp not sending messages issue. To do this follow the steps below:

Step 1: On the Home screen, tap and keep holding the WhatsApp icon until it starts to wiggle. Click the X on the app icon and then tap Delete. Click the home button to stop the wiggling.

Step 2: Launch the App Store. Download and install the latest WhatsApp. Set it up. Restore your WhatsApp backup during the setup.


Reset iPhone

This should be a last resort since it will erase your iPhone data. Before using this solution, back up your device first. To use this solution, follow the steps below:

Step 1: Open Settings > General > Reset.

Step 2: Tap Erase All Content and Settings. Confirm on the pop-up.


Part 3: Fix WhatsApp Not Sending Messages on iPhone with Software

While the solutions outlined above should work, they may not work for you. A better way to fix the WhatsApp not sending messages issue would be to use a software. You can use a software known as iMyFone D-Back to fix the issue easily.

iMyFone D-Back does have a lot of features to offer. These include:

  • Allowing you to fix various iOS issues which may cause the iPhone to perform function abnormally.
  • It also offers iPhone data recovery service from both your normal device and backups created using iCloud or iTunes.
  • The tool works with all iOS devices including iOS 12 beta and iOS 11.4.

To fix the WhatsApp not sending messages issue using iMyFone D-Back:

Step 1: Connect your iPhone to the computer, launch D-Back, tap Fix iOS System function and then select the Standard Mode.

Choose the mode to fix iOS

Step 2: Next, you will need to put your device into either DFU Mode or Recovery Mode. All you need to do is to follow the onscreen instructions. Please read them carefully.

DFU mode under Standard mode

Step 3: Next, you will need to download your device firmware. Before downloading the firmware, ensure that the auto-detected device is correct. If it is not, select the correct one manually. Click Download to get the firmware.

download firmware package

Step 4: After the download is complete, tap Start to Fix. D-Back will verify the firmware and then fix your WhatsApp issue.

finished fixing iOS system

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Part 4: Manage iPhone Data before Fixing WhatsApp Not Sending Messages

Before fixing any iPhone issues, it is extremely important that you back up your iPhone. Some of the solutions outlined here for the WhatsApp not sending messages issue may cause data loss. If the data is lost during the fixing process and you already have a backup, all you will need to do is restore the backup.

You can use a tool known as iMyFone iTransor to back up your iPhone. This tool lets you back up your iPhone fully or selectively depending on your needs. During the restoration, you can choose to restore all your data or restore it selectively too.


If you are experiencing the WhatsApp not sending messages problem on iPhone, try using the solutions outlined above to fix it. Always remember to back up your device before applying any solution. We would like to hear your thoughts and feel free to leave your comment below.