Samsung Galaxy M40 Common Problems & their Troubleshooting!

Today in this article, we will troubleshoot some common Samsung Galaxy M40 problems.

Before proceeding to the post, let us know some of the specs of this phone.

Some Specs: Samsung Galaxy M40

Samsung added a phone to its M-series in 2019, named Samsung Galaxy M40, the phone comes with a 6.3-inch PLS LCD FHD+ display with 1080 x 2340 pixels resolution.

The Galaxy M40 is powered by a Qualcomm Snapdragon 675 (11 nm) processor, as well as it has been launched in two variants, the first with 4GB RAM, 64GB storage, and the second with 6GB RAM, 128GB storage.

Talking about the battery and operating system, the Samsung Galaxy M40 runs on the latest OneUI 3.1 based on Android 9.0 (upgradable to Android 11) and is powered by a 3500 mAh battery with 15W fast charging.

As far as cameras are concerned.

The Samsung Galaxy M40 has a Triple-camera setup, with a 32-megapixel primary wide camera, then an 8-megapixel ultra-wide camera, and then a 5-megapixel depth sensor.

That’s It 🙂

After using the Samsung Galaxy M40 device, many users are facing common issues and problems in the Galaxy M40.

But don’t worry, in today’s guide, I will tell you the troubleshooting of Common Problems In Samsung Galaxy M40 and give a proven solution.

Troubleshoot Common Problems In Samsung Galaxy M40: Network, Heating, Camera, and More

First of all, in this article, we will discuss various common issues and problems with Samsung M40 and also know the solutions to fix them.

All the steps and remedies that I have described below are tested and proven methods, so read this article till the end.

Don’t worry, I’ve shared 10 plus different common problems and their solutions, a problem that almost everyone faces.

I am sure that with this guide today you will definitely get a solution to the problem happening on your phone.

Please read all the steps and remedies included in this article carefully, please do not rush! This guide will eventually help you.

Issue – Network problem in Samsung M40

If you are facing a network problem on your Samsung M40? So don’t worry, below I have listed some effective tips that you can try to fix the network problem on your Galaxy M40.

Solutions:

• Turn the airplane mode on and off for a few seconds.
• Try turning off your SIM card for some time and then turning it on.
• Make sure to check your device in Safe mode. Here’s a comprehensive Guide
• Once, Reset your device network settings.
• Also, update the software to the latest version.
• If your problem is still not resolved, then the last option is to factory reset your Galaxy M40.
• That’s It 🙂

Read Here: Network problems in Galaxy A70, How to Fix Them!

Problem – Overheating problem in Samsung Galaxy M40?

Whenever you play games or use features or apps that require a lot of power, your phone also fast drains the battery, due to which your phone may become temporarily heated up and warm.

Solutions:

• If you are not using Wi-Fi, GPS, Bluetooth, and other connectivity options, turn them off.
• Turn Off auto-brightness and decrease screen brightness.
• Clear all the apps you are not using.
• Uninstall the unnecessary applications installed on the phone.
• Check your device in Safe Mode.
• Update your software in the latest version, if available
• If you follow all the above steps and your problem is still not fixed then the last option is to factory reset your Galaxy M40.
• That’s It 🙂

Issue – Camera Failed Error in Samsung Galaxy M40

Solutions:

• First of all, Forced Restart your Galaxy M40.
  • Press and hold the Volume Down Button and the Power Button simultaneously for a few seconds.
• Clear cache of your default Camera App.
  • Go to Settings → App info → Storage → Clear cache
• If your problem is still not resolved, then factory reset your Galaxy M40.
• That’s It 🙂

Must Read: Overheating problem in Galaxy M10, How to Fix It!

Problem – A sluggish or Lagging User Interface in Galaxy M40

Solutions:

• Remove the application you are not using from the Recent tab.
• Once, Restart your Galaxy M40. This closes unnecessary processes running in the background.
• If you have battery saver mode turned on in your phone, turn it off.
• Do not play games and don’t open any application while charging the phone.
• Clear the System cache partition of the Galaxy M40.
• Are you still having touch screen problems? If it is, then the last option is to factory reset your Galaxy M40.
• That’s It 🙂

Issue – Samsung M40 Battery Draining Fast

Many people have this problem if you are also facing the problem of battery drain with your Samsung M40.

To fix the problem of battery drain on your Galaxy M40, follow the steps given below:

Solutions:

• First of all, turn off auto-brightness, and Decrease the brightness according to your need.
• Make sure to choose the minimum screen timeout time.
  • Go to Settings → Display → Screen timeout → Select Minimum Screen time (Recommended 30 Seconds)
• Enable Power Saving Mode.
• Optimize your all apps.
  • Go to Settings →  Battery and device care → Tap on Optimize now
• That’s It 🙂

Must See: Fix Fingerprint sensor not working in iQOO Neo 5 SE?

Problem – Apps Crash Suddenly on the Samsung M40

Since the launch of this smartphone, the users of Galaxy M40 have been facing this app crash problem:

Don’t worry, the problem of this app crash is not only happening on the Galaxy M40 phone, but other Galaxy Tabs have also shown this error.

Solutions:

• First, Reset App Preferences.
  • To do: Go to Settings → Apps → Tap the Three dots → Finally, Tap Reset App Preferences.
• Make sure if there is a new software update on your phone, install it if new software update is available.
• If your phone is facing any problem due to a single application, then you can Go to Settings → Apps and Select that app then clear its data and cache.
• Restart your device once after following all these steps.
• That’s It 🙂

Issue – Unresponsive Touch screen issues on Samsung Galaxy M40

If you are experiencing slow or unresponsive touch screen issues on your Galaxy M40, I have listed some quick steps below that you can use to fix your problem.

Solutions:

• First, Restart your Device and check your problem is fixed or not.
• Make sure to neat and clean your phone screen.
• Remove the old screen protector.
• Check your Galaxy M40 in Safe Mode.
• Clear the System cache partition of the phone.
• Still, facing problems with the Touch screen? If it is, then the last option is to factory reset your Galaxy M40.
• That’s It 🙂

Read Here: Is Bluetooth not working properly in Realme GT Neo 2? How to Fix It!

Problem – Fingerprint sensor not working Samsung M40

In many forums and discussion sites, Galaxy M40 users have reported problems with the device’s fingerprint reader.

This problem can happen due to many reasons, let us know the ways to fix this problem:

Solutions: 

• Make sure you are using the same finger that you used when setting up the fingerprint.
• This problem is also caused by a malfunction of your phone’s fingerprint sensor, check if the fingerprint sensor is scratched or damaged.
• Remove the old fingerprint in your Samsung Galaxy M40 and add a new fingerprint.
  • Go to Settings → Biometrics and Security → Fingerprints → Enter your old PIN, pattern, or password → Registered fingerprint → Remove and Tap Remove again → Add a new fingerprint.
• Are you still having problems with the fingerprint sensor? If it is, then you can clear the cache partition of the phone.
• That’s It 🙂

Issue – Unable To Send Text Messages on Samsung M40

Solutions:

• First of all, check whether the number you want to send the message to is not blocked.
• Clear the cache of the default message app of your Samsung M40.
• If you do not need the old messages, delete them.
• Once, Restart your Samsung M40 and check your issue is fixed or not.
• Turn on flight mode and again Turn Off.
• That’s It 🙂

Must Read: Fix Touch screen issues on Samsung Galaxy A53 5G?

Problem – Unable to make and receive phone calls on Samsung M40

Solutions:

• Remove the SIM card from your phone and insert it again.
• Once, Reboot your device.
• If there is a new software update available on your Samsung M40, then install it.
• Check if flight mode is on in your Galaxy M40, if it is on then turn it off.
• Reset your phone Network settings.
• That’ It 🙂

Issue – Bluetooth not working in Samsung M40?

Many times Bluetooth is turned off due to low battery or Bluetooth not being enabled in the phone.

Solutions:

• Make sure to check for new software updates.
• Also, make sure to Verify the Bluetooth device is Turned on and Bluetooth is enabled on both devices.
• Both phones must be nearby to connect to Bluetooth, so check the Bluetooth connection range.
• Once, Restart both devices.
• If your problem is not solved then Reset your device’s Network Settings.
• That’s It 🙂

How to Fix: Unable to make and receive phone calls on iQOO Z6?

Problem – Microphone not working on Galaxy M40

Solutions: 

• First, Restart the phone and record the voice to check if the microphone is OK? If you like the sound quality of the recorded voice, then the microphone is fine.
• Once, Boot your phone in safe mode, if your phone’s microphone works well in safe mode, then the problem is with any third-party application downloaded, uninstall it.
• Ensure that no new software update is available on your phone, install it if available.
• If your problem is still not resolved, then factory reset your Galaxy M40.
• That’s It 🙂

Issue – Galaxy M40 is constantly freezing or crashing

If your Galaxy M40 phone is constantly freezing or crashing then it seems very bad and disappointing.

But don’t worry, to fix this problem I have outlined some troubleshooting steps below that can help fix your problem without sending your phone to a Samsung service center.

Solutions:

• First, Force reboot your Samsung M40.
  • Press and hold the Volume Down Button and the Power Button simultaneously for a few seconds.
• Make sure to Update your Software Version to the Latest Version.
• Once, Boot your device in Safe Mode. Here’s Guide
• If a particular application is causing this problem in your Galaxy M40, then you can try to clear the cache and data of those applications.
  • Go to Settings → Apps → Select the Crashing App → Storage → Clear Cache & Clear Data
• If your problem is still not resolved, then factory reset your Galaxy M40.
• That’s It 🙂

Must Check: Samsung Galaxy A73 5G is constantly freezing? How to Fix Them!

Troubleshooting Steps for Samsung Galaxy M40

These are simple troubleshooting steps, many problems are solved by trying them, will definitely try them once.

Boot your device into Safe Mode

• First press and hold the Power button, after that you will get three options, in which there will be a safe mode.
• You have to Tap in safe mode
• That’s It 🙂

Reset your device Network settings

• First, Go to Settings
• Then Tap on the General management
• Tap on Reset → Reset Network Settings
• Now Tap the Reset Settings button
• Finally, Tap Reset and Tap Confirm
• That’s It 🙂

 Factory Reset your device

• First, Go to Settings App
• Then Tap on the General management 
• Tap on Reset → Factory data reset → Tap Reset
• Finally, Tap Delete All
• That’s It

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Related Guides: 

• How to Take Screenshot on Samsung Galaxy M40?

Conclusion:

So in this guide, I have discussed all the common problems in the Samsung Galaxy M40.

I have shown you some key issues above and a proven solution to fix them. I hope you liked this article.

If you are facing any other problems with your Samsung Galaxy M40, then be sure to tell us in the comment section below.

I will try to resolve your issue as soon as possible and thanks for staying up to the end with this guide.