Authentication Error Occurred on Vivo X100? Here Are 10 Proven Fixes

There are times when users get an authentication error while they connect to a Wifi network. The problem is mostly found in Android whenever a device tries to establish a connection to Wifi. If your device is also experiencing an authentication problem Wifi, then don’t worry. It can easily be resolved. In this post, we will make you familiar with the root cause for the Vivo X100 Wifi problem and how you can resolve whenever authentication error occurred on your device.

Part 1: Any idea about the Wi-Fi authentication problem?

Wi-Fi authentication has to be done every time you wish to connect to a Wi-Fi network over your smartphone or laptop. To authenticate yourself and connect to the protected Wi-Fi network, you need to have the password of it. But if after you’re putting in the correct password and still experiencing the wifi authentication problem. Here’s what you need to know.

Authentication error occurs when the “deal” between the Wi-Fi router and device fails due to certain reasons. First, the Vivo X100 device sends the password of the network and the “connect” request in an encrypted format to the Wi-Fi router. Then, the router decrypts the password and compares the password saved on it. Now, if the password matches, it sends affirmation for the “connect” request, and then the Vivo X100 device is allowed to connect to the network.

Part 2: Why Authentication Error Occurred when Connecting to Wifi?

There could be plenty of reasons for facing an authentication error on your device. Most of the time, it occurs whenever a Wifi router seems to malfunction. Furthermore, if your phone has been recently updated, then chances are that there could be an issue with its drivers. A security attack can also make your device malfunction as well. An unstable connection or a router blockage can also be a reason for this issue.

In this scenario, whenever you try to connect to a Wifi network (even after supplying the correct password and username), it doesn’t connect to it. Instead, it displays an authentication error occurred promptly. Thankfully, there are plenty of ways to overcome the authentication problem Wifi. In the next section, we have provided three different solutions to fix the Vivo X100 Wifi problem (as it mostly happens on Android devices).

Part 3: 10 Solutions to Fix Wifi Authentication Error

Before we make you familiar with different fixes for the Wifi authentication error, it is important to check your router beforehand. Chances are that you could be getting the authentication error because your router is not functioning properly. You can restart it and try to connect any other device to it as well to check it. After making sure that there is no problem with your network or router, follow these suggestions to overcome the authentication error occurred issue.

Check if extra characters added in Wi-Fi password

Ensure that no other extra characters are being added in the Wi-Fi password while you’re entering it. Key in the password carefully while viewing the characters, and then check if the authentication error occurs or not.

One-Click to Fix Wifi Authentication Error by Android System Repair

Android system repair is considered the most effective way to fix Wifi Authentication Error. As the bottom-layer Android system files may be corrupted unconsciously with days of phone use, the Wifi Authentication Error may be one of the symptoms.

So Android repair requires programming knowledge to do it?

No! With Dr.Fone - System Repair (Android), you can do Android repair in just a few steps and get all issues like Wifi Authentication error fixed easily.

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Dr.Fone - System Repair (Android)

An easy-to-operate tool to fix Android system issues like a Wifi authentication error

• Fixes all Android system issues like a black screen of death, Wifi authentication error, etc.
• One-click to fix the Wifi authentication error. No technical skills required.
• Supports all the new Vivo X100 devices like Galaxy S8, S9, etc.
• Easy-to-follow instructions provided on each of the screens.

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Here are the steps to fix Wifi Authentication Error by Android system repair:

Note: Android repair is effective to permanently fix Wifi Authentication Error, but may wipe out the existing phone data. Backup all the important Android data to PC before you go on.

1. After the Dr.Fone tool is downloaded, install, and launch it. You can see the following screen.

1. Connect your Vivo X100 to the computer, and select “Android Repair” in the middle.

1. Select all the details that match your device, and click “Next”.

1. Next up, you should boot your Vivo X100 in download mode by following the on-screen instructions.

1. Allow the program to download the corresponding firmware. After that, the Android repair will start and get the Wifi Authentication Error fixed in minutes.

Use static IP address instead of DHCP

DHCP, or Dynamic Host Configuration Protocol is the default IP address assignment for the Wi-Fi settings on many devices. Whereas DHCP can cause IP address conflict during the dynamic IP address assignment. So, you’d better change “DHCP” to “Static” to see if the authentication error persists.

Step 1: Head to the “Settings” of your Vivo X100 and then opt for “Wireless and Networks” followed by “WLAN/WiFi”.

Step 2: Now, hit on the WiFi network that is showing “authentication error occurred”.

Step 3: Depending on your Vivo X100 model, look for “IP Settings” and tap on it. Now, switch the “DHCP” to “Static”.

Step 4: Note down the static IP address fields and wipe off all the fields. Punch it in again and then save it.

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Check carefully for duplicate Wi-Fi names before you connect

Perhaps, you might connect to a WiFi with a similar name. There are good chances that some users do not modify their WiFi network name and possibly, your neighbor may have the same WiFi network, service provider. Therefore, ensure you connect to the correct WiFi network.

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Reset the Wifi network

One of the easiest ways to fix the authentication problem of Wifi is to reset the network. To do this, you would be required to forget the respective network first and then connect to it again. This can be done by simply following these steps.

1. Firstly, you need to forget a Wifi network. To do it, go to your phone’s Settings > WiFi and network. From here, you can see a list of all the Wifi hotspots that your phone connects to. Select the network you wish to forget.

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2. When you would select a network, it will provide the basic information related to it. Just tap on the “Forget” button and agree to the pop-up message. This will erase the network’s information from your device.

3. Afterward, turn on your Wifi again and tap to the network you wish to connect to. Simply provide the credentials and tap on the “Connect” button to reestablish the connection. This way, you can reset the network successfully.

Modify network connection

If the above solution won’t work, then you would be required to walk the extra mile to fix the Vivo X100 Wifi problem. After you reset a network connection, if still getting issues regarding the authentication of the network, you need to modify the connection. In this technique, you will be changing the IP settings on your phone to alter the way it establishes a secure connection. You can do it by following these steps.

1. To start with, visit your phone’s Settings and open the Wifi page.

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2. This will display a list of all the Wifi networks that are associated with your device. Just long-tap on the Wifi network that you wish to modify. It will open another pop-up window. From here, tap on the option of “Manage network settings”. Sometimes, users also get an option of “Modify network settings” here as well. Simply select it to proceed.

3. It will display basic information related to your Wifi network. Just tap on the “Show advanced options” button to access more options related to the network setting.

4. From the IP Settings menu, change the field from DHCP to Static. This will let you establish a static connection between your device and the router.

5. As soon as you will change it to static, you will get different fields related to your network’s IP address, gateway, DNS, and more. Simply fill these fields and tap on the “Save” button once you are done.

Now, try to connect to the Wifi hotspot again. You would be able to overcome the authentication problem of Wifi.

Change Network Security Type

It has been observed that, when we connect to Wifi, our device chooses a wrong security type. This clashes with the default security protocol of the router and authentication error occurred due to this. If your device is facing the same issue, then it can be fixed by simply changing its security type. To do this, follow these instructions:

1. To change the security type of a network, you need to “Add the network”. If you already have the Wifi network saved, then simply forget the network by following the above-mentioned tutorial.

2. Now, turn on your device’s Wifi and tap on the option of “Add network”. Here, you would be asked to give a network name and select the security type. To manually select it, tap on the “Security” option.

3. From here, you will get a list of various security protocols that you can pick. Select “WPA/WPA2-PSK” and save your selection.

Now, try to connect to the network again. Most likely, it will let you fix the authentication error on your device.

Update Android firmware to the latest

There are instances where an outdated OS version of your Vivo X100 may create a hindrance in establishing a connection between your device and the WiFi network. You need to update your Android firmware to the latest version and then check if the problem persists or not.

Step 1: Launch “Settings” of your Vivo X100 and then get into the “About Phone” option.

Step 2: Now, opt for the “System Update” option. If the update is available, get your device updated to the latest OS version.

Restart the router and reset Android network settings

Sometimes, the WiFi router may hang up while establishing a connection and therefore, the wifi authentication problem occurs. Try restarting your Wi-Fi router and then check if your device connects successfully. If this doesn’t work, try to reset your Android Network Settings .

Bonus tip: Turn Airplane mode on/off

By simply turning on the Airplane mode (and later turning it off), you can easily fix the authentication problem Wifi most of the time. You can find a toggle button for Airplane mode on the notification bar of your phone. If you can’t find it there, then go to your phone’s Settings > Connection > More Networks and turn on the feature of “Airplane Mode”.

Let it do for a while. Afterward, turn it off and try to connect to the Wifi network again.

After following these quick and easy suggestions, you would be able to fix the Vivo X100 Wifi problem for sure. Even if you use any other Android device, then its authentication error can easily be resolved after these effective solutions. Go ahead and give these expert solutions a try and let us know about your experience as well. If you have any other solution to fix the authentication problem Wifi, then share it with us as well in the comments.

Best Methods for Vivo X100 Won’t Turn On

The Vivo X100 3 boasts numerous impressive features, making it a desirable phone. However, occasional malfunctions can result in the Vivo X100 3 won’t turn on issue. This issue can be incredibly frustrating. Don’t panic if you encounter this issue! There exist solutions to rectify it. This comprehensive guide aims to assist you in diagnosing and resolving the problem.

It will offer both basic steps and advanced techniques. With clear instructions and insightful tips, we’ll help troubleshoot your Vivo X100 3. Should you encounter this setback, follow this guide diligently to revive your Vivo X100 3 and have it up and running again.

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Scenario 1. Phone Not Charged

A Vivo X100 4 not turning on might simply be a victim of a drained battery due to lack of charging. Several factors could lead to this, including a damaged charging cable or adapter. Moreover, issues with the power source or a malfunctioning charging port can be the issue.

Reason 1. Damaged Charging Cable or Adapter

Solution: Replace the charging cable or adapter with a known working one. Try using a different USB-C cable and adapter to ensure it’s not a faulty connection.

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Reason 2. Faulty Power Source

Solution: Verify the power source by trying different outlets or USB ports. Ensure the power source is functional by testing it with another device.

Reason 3. Charging Port Issues

Solution: Check the charging port thoroughly to identify any dirt, debris, or signs of damage. Gently clean the port using compressed air or a small brush. If there’s visible damage, consider professional repair services.

Scenario 2. Check for Damages

Sometimes, a Vivo X100 3 might not turn on due to physical damage incurred by the Vivo X100 device. Instances such as accidental drops, exposure to water or moisture, or even hardware malfunctions can be the reason. These can cause visible or invisible damage, leading to Vivo X100 4 won’t turn on.

Reason 1. Physical Impact or Dropping

Solution: If the Vivo X100 3 has experienced a significant impact or drop, inspect the exterior for any visible damage. A cracked screen or internal hardware issue might prevent the Vivo X100 device from turning on. Consider professional repair services if necessary.

Reason 2. Water or Moisture Exposure

Solution: If the Vivo X100 3 has been exposed to water or moisture, immediately turn it off. Moreover, do not attempt to power it on. Place the Vivo X100 device in a bowl of uncooked rice or silica gel packets to help absorb moisture. Alternatively, use a vacuum or hairdryer in a cool setting to draw out moisture. It’s crucial to let the Vivo X100 device dry completely before attempting to power it on.

Reason 3. Hardware Malfunction

Solution: Check for any hardware malfunction symptoms such as overheating , unusual sounds, or a burnt smell. If any such signs are evident, refrain from attempting to turn on the Vivo X100 device. You should seek professional assistance from authorized service centers.

Scenario 3. Buggy Android Smartphone

An Android smartphone, including the Vivo X100 3 XL, can encounter situations where the OS becomes extremely buggy. It leads to various issues, such as the Vivo X100 3 XL won’t turn on or getting stuck in a boot loop . Software glitches, corrupted system files, or incompatible apps can contribute to such problems.

Reason 1. Device Stuck in the Boot Loop

Solution: Try initiating a force restart to help fix this issue. You can do that by pressing and holding the “Power” and “Volume Up” keys at the same time for 10 seconds.

Reason 2. Software Glitches or System Crash

Solution: If encountering issues with the Vivo X100 device not powering on because of software glitches or a system crash, try initiating Safe Mode by simultaneously pressing and holding the ‘Power’ button along with a Volume key. This action will cause the Power menu to be displayed. Here, tap and hold the “Power off” for a while and tap “OK” once the Safe Mode prompt appears.

Scenario 4. System Glitches? Try Wondershare Dr.Fone as a Prioritized Solution

If you have attempted the solutions mentioned above without success, it is essential to explore a more robust option. This is important if the issue seems to be a major software problem that cannot be resolved using basic troubleshooting methods. In such cases, Wondershare Dr.Fone – System Repair emerges as a viable solution. Besides, It is a perfect fit to address the “Vivo X100 4 Not Turning On“ issue effectively.

Dr.Fone is designed to tackle various repairing problems that occur in Android devices. With its comprehensive setup, it can effectively address errors related to the Vivo X100. These measures are aligned to meet the specific requirements of your device. This is helpful in minimizing the time needed for troubleshooting.

Key Features of Wondershare Dr.Fone

1. Fone allows you to repair the Android device with just a few clicks. By following the on-screen instructions, you can complete the whole process conveniently.
2. It fixes all Android-related problems, including the Black screen of death , the Play Store not working, and more.
3. This tool is compatible with all the mainstream Vivo X100 models, including the latest ones.

Steps Required To Resolve System Glitches via Wondershare Dr.Fone – System Repair

Now, we’ll provide you with a guide to resolve the Not Turning On issue of your Vivo X100. Go through the steps mentioned below to use Dr.Fone for the repair process.

• Step 1: Open Dr.Fone and Access System Repair Tool

Starting with, you will have to activate Dr.Fone on your computer and head to the “Toolbar” panel on the left of the window. From there, navigate to the “System Repair” tool and continue with the “Android” device to proceed with the repair process.

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• Step 2: Start Android System Repair

In the next step, choose the “Start” button that appears, by which your device will be recognized. You have to put in the “Name, Model, Country, and Carrier” details of the Vivo X100 device and hit the “Next” option. Then, you need to put your Vivo X100 on Download Mode following the on-screen instructions.

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• Step 3: Utilize the Firmware

Afterward, the firmware will start to download automatically once the Vivo X100 device enters a Download Mode. You need to select the “Fix Now” button and continue typing in a “000000” code. Then, proceed with the “Confirm” option to install the firmware on your device.

• Step 4: End the System Repair of Android

Lastly, the repair process will get started and can be viewed in a progress bar. Once it ends, hit the “Done” button to conclude the activity, and check your device to see if it starts properly.

Scenario 5. Need for a Power Cycle

At times, an Android device, including the Vivo X100 3/4, might benefit from a power cycle procedure. This process involves completely refreshing the Vivo X100 device’s system. It potentially my Vivo X100 3 won’t turn on issues, temporary bugs, or system hang-ups. These issues prevent the Vivo X100 device from turning on or functioning properly.

Reason 1. System Freeze or Unresponsive Device

Solution: If the Vivo X100 3/4 is unresponsive or frozen, perform a forced restart by holding down the “Power” and “Volume Up” for about 10 seconds. This action should force the Vivo X100 device to shut down and reboot, potentially resolving the issue.

Reason 2. Battery Optimization and Refreshment

Solution: Sometimes, a power cycle helps optimize the Vivo X100 device’s battery performance and refreshes the system. Allow the Vivo X100 3/4 to completely power down, charge it for at least 30 minutes, then attempt to turn it on.

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Reason 3. Software Hang-Up or Temporary Glitch

Solution. To shut down your Vivo X100 3/4, press and hold the power button, then choose ‘Power Off’ from the menu that appears. After the Vivo X100 device powers down, wait for about 30 seconds to 1 minute to ensure it has fully shut down before moving forward. Subsequently, press and hold the power button until the Google logo displays to restart your device.

Scenario 6. Software Damaged? Restore Immediately

When an Android device experiences severe software damage, it can lead to major issues like the Vivo X100 3 won’t turn on. This can hinder the functionality of the Vivo X100 device. It also includes the inability to turn on or persistent system malfunctions. In such cases, performing a complete phone restore becomes a necessary solution:

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Reason 1. Corrupted System Files or Firmware Issues

Solution. In cases of severe software damage or corruption of system files, performing a settings reset becomes imperative. It is to restore the Vivo X100 device to its default settings and resolve underlying issues.

Reason 2. Factory Reset as a Solution

Performing a factory reset serves as the ultimate solution. This is true when facing critical software damage that leads to a non-responsive Vivo X100 3/4. This process erases all user data, apps, settings, and files stored on the Vivo X100 device, reverting it to its original factory state.

Steps To Perform a Factory Reset on Vivo X100 3/4

• Step 1. Access the “Settings” application on your Vivo X100 3/4. Then, navigate through the menu until you locate the “System” category located further down the list. Within the “System” settings, tap the last option named “Reset Options.”

• Step 2. On the following screen, press the “Erase All Data (Factory Reset)” option. Afterward, follow the on-screen instructions to complete the process.

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Scenario 7. Phone Hangs on Installed App

There are scenarios where a phone, like the Vivo X100 3, hangs or gets stuck on a specific installed app. It happens during the startup process, and it can prevent the Vivo X100 device from turning on properly. This issue often arises due to a malfunctioning or poorly coded app. This app disrupts the Vivo X100 device’s startup routine, causing Vivo X100 4 won’t turn on.

Reason 1. Third-Party Apps Interference

Solution: Start by booting the Vivo X100 3 into Safe Mode. This mode disables third-party apps, allowing you to access the Vivo X100 device without interference from downloaded applications.

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Reason 2. Problematic App

Solution: While in Safe Mode, observe if the Vivo X100 device boots up properly. If it successfully boots, it suggests that a third-party application is causing the problem. To pinpoint the problematic app, uninstall recently added apps individually and restart the Vivo X100 device after each removal. This process helps pinpoint the problematic app causing the hang during startup.

Reason 3. Stacked Up App Cache and Data

Solution: If the problematic app is identified, try clearing its cache and data. Go to Settings and then access “Apps.” Within “Apps,” find the Problematic App and tap “Storage & cache.” On the subsequent display, select “Clear cache “ and “Clear storage” to restore the application to its original settings. After restarting the Vivo X100 device, verify whether the problem persists.

Reason 4. Outdated Application

Solution: If the application is essential, ensure to seek updates within the Google Play Store. Updating the app to its latest version could potentially resolve any compatibility issues. Alternatively, if updates are not available or don’t resolve the problem, consider uninstalling and reinstalling the app.

Conclusion

In conclusion, this article has aimed to address the perplexing issue of a Vivo X100 3 won’t turn on. It offered a range of solutions depending on different underlying reasons. The guide included basic methods like checking for charging issues and examining hardware damage. Moreover, it included advanced techniques like software repair tools such as Wondershare Dr.Fone.

Users are encouraged to follow the step-by-step instructions outlined here. These solutions can serve as effective remedies for resolving the problem. For more in-depth and advanced solutions, considering Dr.Fone stands as a significant option. It offers a robust system repair feature for resolving intricate software-related issues.

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How to Fix Unfortunately, Contacts Has Stopped Error on Vivo X100

Have you recently noticed a message stating “Contacts has stopped”? This is enough to take away all your peace. As, our native contacts app stashes all our useful contacts which are time and again needed by a user. It’s malfunctioning is enough to give us chills. But, why the Vivo X100 or any other Android device incurs such problems?

It can occur while you launch the app or while you’re in the app already finding the required contact or when any other application is trying to gain access to it. So, to rage a battle with this issue, you need to seek help of some powerful methods in killing down the issue of contacts app crashes. And, the best part is that you’ve secured yourself by reaching the right place. We will be taking an in-depth discussion on several methods that may prove to be helpful. Let’s read them up here now.

Part 1: Get Android system fixed in one click

We’re always in search of a method that provides handy solution in a quite speedy and hassle-free manner. There are hundreds of tips and tricks for the same. You never know the possibility of firmware being the major drawback. No amount of manual methods can beat the performance of Dr.Fone - System Repair (Android).It is capable of providing 100% solution to any kind of issues, your phone gets troubled with. It is designed with the technology of combating the problem of black screen of death, app crashes and several other issues. In just a single-click, ward off the issue and free your device with errors

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Fix Contacts app crashing on Android in one click

• Incorporates with 1-click technology to resolve any issues occurring in your Vivo X100. Black screen of death, app crash, system crash, faulty issues etc.
• fone – Repair (Android) interface is extremely simple for users and lays functionalities aptly.
• One of its kind software with highest success rate in the market.
• Fully compatible with all kinds of Android phones, models, as well as the popular carrier.
• It provides users with 24 hours customer care service to resolve queries.

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In this tutorial, we will learn the methodology of addressing the contacts keep stopping problem and gain triumph over it.

Step 1: Load program and draw connection of device

Download Dr.Fone - System Repair (Android) on PC. While program installs, use USB cable to connect device with system. From interface, tap on “System Repair” main window.

Step 2: Opt for Android Repair option

You’ll be directed to the “System Repair” screen where you have to opt for “Android Repair” options appearing over the left panel of the program. After that, do not forget to press “Start”.

Step 3: Key in device information

From following screen, fill the fields of “Brand”, “Name”, “Model”, “Country” and several other parameters. Then, tap on “Next” option to proceed further.

Step 4: Download Firmware package

Just follow the on-screen steps for booting your Vivo X100 into download mode. Then, hit the “Next” button to proceed with downloading the most suitable firmware package for your Vivo X100.

Step 5: Repair Android phone

Once the software downloads, the program will automatically repair any issues irking over your phone. Now, your phone is all free from contacts error.

Part 2: 9 Common ways to fix “Unfortunately, Contacts Has Stopped”

2.1 Restart Android system

Our response to any minuscule issue is straightaway restarting phone. This helps in clearing out any problem that might have disrupt the functioning of phone. So, to fix the problem of “Contacts app won’t open”, you too can try out your hand in this method.

1. Get hold of your Android system and long press the power button.
2. This will fadeout the main screen and showcase several options from where you’ve to tap on “Reboot/Restart” mode.

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Now, your device will quickly reboot the Vivo X100 device. Once, the Vivo X100 device regains its normal state, check whether the issue is coming again or not.

2.2 Clear cache and data of Contacts app

The cache memory basically stashes the copies of the concerned application. It is indeed a streak of copies of the desired app storing information and incurring additional space on the storage. This might be the reason why the contact app crashes rapidly on your Vivo X100. Hence, it can prove to be a good remedy for this problem. Just follow down the steps mentioned below-

1. First of all, go to “Settings” application from the app drawer or from the notification panel.
2. Now, surf and select for “Applications” or “Apps & notifications”.
3. Here, you need to browse for “Contacts” app and open it.
4. On “Contacts” app, just tap on “CLEAR CACHE” and “CLEAR DATA” button. This will prompt the cache memory to be cleared.

2.3 Wipe cache partition

As we know the cache memories are the temporary files build by the firmware. These are of little importance as they are bound to become a bit more corrupted in nature. And sometimes, may indirectly become a hurdle for the working of contacts app. It is good if the Vivo X100 device is cleared off from the caches. Instead of manually wiping down the cache memory, we will understand how to clear off the cache partition in the following steps.

1. From device, just power off your device. Then, press the “Volume Down + Power” button with “Home” combinations together.
2. In a moment’s time, lose fingers from the “Power” button but do not release fingers from “Volume Down” and “Home” buttons.
3. Once you view the “Android System Recovery” screen, just lose the “Volume Down” and “Home” buttons.
4. Over the options available, just opt for “wipe cache partition” by tapping the “Volume down” button until the desired option is highlighted.
5. Finally, push the “Power” key to give consent to the selection.

7. After, the process is through there will be an option for “Reboot System Now”. Tap on it and restart the Vivo X100 device.

2.4 Disable Google+ app

The root cause for detecting any problem is not very easy. You never know the overloading of Google + application might have directly impacted contacts app crashes. To resolve it, disabling it may prove to be a helpful solution. Here is the quick reference for disabling Google+ application.

1. First of all, visit “Settings” from your Vivo X100.
2. In “Settings”, visit the “Application Manager” or “Applications” menu and browse for “Google +” app.
3. From the application main page, you can choose to do either of the methods:

• Either, completely disable the application to work by pressing on “Force stop” or “Disable” feature.
• Or, brush away the unnecessary cache piled up on your storage by using “Clear Cache” functionality.

There will be a prompt stating that the application may misbehave. However, you must disable the feature and check whether it worked out for you or not.

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2.5 Update your device software

Many a times, we skip updating our device software thinking it is of less importance. In fact, one must not miss out the updates that occurs in phone. As, without the updates, the scope of some applications are affected to some extent. For its better functioning and avoiding issues like “contacts keep stopping”, here is how you should update device software.

1. First and foremost, head on to “Settings” menu. Over there, click on “About Device”.
2. There, you need to tap over “Software Update”.

The device will now check whether there are any updates available for your device. If yes, then update application right away.

2.6 Reset App Preferences

As stated, the malfunctioning of contacts can be due to be any unexpected reason. Hence, users can opt for resetting app preferences. This may prove to be helpful in brushing away the issue of “Contacts app won’t open”.

• Launch “Settings” app and surf for “Apps” or “Applications” option on your Vivo X100.
• Just, tap over the three dots appearing at the upper right section and then tap on “Reset app preferences”.
• At last, just select “Reset default apps”.

2.7 Delete voicemail

Do you happen to exchange voicemails quite often? It can trigger to be the reason for contact app crashes. If your device happens to have a bulk of voicemails, you must get rid of them sooner or later. As, these might standout to be the prime reason for contacts stopping on Vivo X100. If you’re unaware about the procedure of removing all kinds of voicemails, you can proceed to make use of the following steps.

1. Start with, launching the “Google Voice” app.
2. From there, duly opt for “Voicemail”.
3. Just click on the press menu option and at last select “Delete” option.

2.8 Uninstall the downloaded apps

Some applications contain some unwanted advertisements and some elements of malware. This can be enough for disrupting the functionality of the built-in contact app won’t open. It is crucial for your phone to be detoxed from such elements. You need to manually scrap off such applications. Do, ensure to download the application from the genuine source for future use.

• On your Vivo X100, just go to “Home” screen and tap on “Apps” icon.
• Then, tap on “Settings” icon followed by going to “Applications” or “Apps & Preferences” menu.
• After that, tap on “Menu icon” which will showcase the apps installed on device.
• Simply, open the app and hit the “Uninstall” button to brush away that app. Repeat the same with other application(s).

Now, check whether you’ve fought the battle with the problem or not.

2.9 Reset to Factory Settings

Last but not least, if all the methods falls flat to resolve the issue of contacts app won’t open. Then, it might be your device has some internal problem. This can be any software crash which might not be fixing with the aforementioned steps. That is where reset to factory settings may prove to be a good option. With this method, your phone will be cleared of all the components, settings and everything present in it. Here are is the comprehensive tutorial for biding bye to the problem of contacts app won’t open.

Note: Do ensure to take a backup of all the data available in your device. As, we don’t want you to regret afterwards.

• Just go to “Settings” and surf and select “Backup & Reset” option.
• You need to toggle on the option for performing the backup on your Google account.
• Then, tap on “Reset” button and then tick mark the option for resetting your phone.

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