![restart the android device](https://images.wondershare.com/drfone/article/2023/08/fix-android-system-crash-1.jpg)
Part 4: Shut down unnecessary running apps Another quick solution to avoid Android devices crashing is to shut down unnecessary apps running in the Oppo A18 device’s background. To cater to that, you need to try out the following steps as a remedy to shutting down unwanted applications:
Step 1: Open the “Settings” of your Oppo A18 and continue to the “Battery and device care” section from the available options. Continue to the “Memory” section on the next window to lead to the applications taking up space on your Oppo A18.
Step 2: As you progress further, you need to select the “Clean now” button to shut down all unnecessary background applications running on the Android.
Part 5: Uninstall incompatible Apps to fix Android crash issue If your Android system crash takes place frequently but the Oppo A18 device turns on normally after that, there is a chance that some Apps may be causing the problem. Unnecessary and large App files burden the Oppo A18 device system and force it to crash every now and then. Make sure you download, install and store only those Apps which are fully compatible with your Android system. DO NOT download Apps from other unknown sources and use only Google Play store for the purpose. All other incompatible Apps must be deleted to prevent them from tweaking your software.
To uninstall unwanted and incompatible Apps, please follow the steps below.
1. Visit “Settings” and search for “Application Manager” or “Apps”.
Select the App you wish to uninstall. From the options that appear before you, click on “Uninstall” to delete the App from your device.
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You may also uninstall an App directly from the Home Screen (only possible in certain devices) or from the Google Play Store.
Part 6: Check Android storage and free up space If you are constantly facing issues of your Oppo A18 crashing, there is a possibility that your device’s storage is full. The need to free up space arouses the need to know about the potential steps for checking storage and cleaning up space, which is discussed as follows:
Step 1: You need to navigate into “Settings” and look for the “Battery and device care” section. As you lead next, select the “Storage” option to check the Android storage and see how it is segregated.
Step 2: As you navigate to the next screen, you can free up space by removing the applications from your Android. For that, tap on “Apps” to open a section containing the list of applications installed on the Android.
Step 3: Go through the list of applications and select any app you want to remove. As you navigate next, select “Uninstall” to lead to removing the app from the Android device.
Part 7: Clear cache partition to fix Android crash issue Clearing cache is a good idea because it cleans your device and reduces the burden on the Android software and gives it enough space to function normally and carry out its operations.
In case the Android system crash issue is temporary, follow the steps given below to clear your device’s cache:
1. On your Oppo A18, visit “Settings” and find “Storage”
2. Now tap on “Cached Data”, and then click “OK” to clear all unwanted cache from your device as shown above.
However, if the Android crash problem is such that your phone has frozen, becomes unresponsive, and does not turn on, you must first boot into the Recovery Mode screen.
1. Press the volume down button and power button together until you see a screen with multiple options before you.
2. Once you are on the Recovery Mode screen, use the volume down key to scroll down and select ”Wipe cache partition” as shown below.
3. After the process is completed, select “Reboot System” which is the first option in the recovery mode screen.
This method will help you erase all the clogged-up and unwanted files and resolve the Android system crash issue. If clearing cache doesn’t help, try formatting your SD Card.
Part 8: Remove the SD card to fix the Android crash issue Removing and formatting your SD Card to fix the Android System crash issue is helpful when a corrupted SD Card disturbs the Android software forcing it to shut down suddenly.
To format your SD Card, just follow the instructions below.
1. Firstly, eject it from the Oppo A18 device.
2. Then using an SD Card reading tool, insert the Card in your PC. Open Computer and then right-click on the SD card to format it.
Part 9: Update to the latest software version Updating the Android device will cast out all glitches that prevent it from operating properly. For that, let’s look into the steps explaining how to update your Android software version to the latest option:
Step 1: As you lead into the “Settings” of your Android, scroll down and look for the “Software Update” option.
Step 2: On leading to the next screen, select the “Download and Install” option to continue updating your Android to the latest version.
Part 10: Use Wondershare Dr.Fone – System Repair To Fix Android System Crash If you are not getting any specific solution to the problem, you can try fixing the Android system crash problems using specific tools. These third-party tools can be an excellent option for resolving system errors in Android devices. Wondershare Dr.Fone – System Repair (Android) is a great tool designed to resolve all system issues in Oppo A18] and other smartphones.
It features a great system providing a one-click Android repair option for fixing all kinds of problems. Along with fixing all basic and advanced Android system issues, it features support for multiple Android devices.
Key Features of Wondershare Dr.Fone – System Repair (Android)
Repair Android System Errors without Any Trouble.
Fix your Android to normal, no skills required.
Fix various Android system issues, stuck in boot loop , black screen , or won’t turn on , looping on start, etc.
The high success rate in resolving Android system issues.
Compatible with a wide range of Android devices and OS versions
User-friendly interface with easy-to-follow steps.
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As we redirect to resolving Android system errors using Wondershare Dr.Fone – System Repair, let’s look into some essential features that make up the entire tool:
Features support for all the latest Android devices up to Oppo A18 S22.
It can help you resolve issues like Android’s black screen of death, being stuck in the boot loop, and many more.
Provides an easy interface to execute procedures, making it a simple tool with no learning curve.
Steps To Repair Android System Crash Issue Using Dr.Fone – System Repair (Android) Let’s redirect to the steps that can be used to repair Android system crash issues using Wondershare Dr.Fone – System Repair (Android):
Step 1: Launch and Open System Repair Tool
You need to download and install the latest version of Wondershare Dr.Fone on your computer. Proceed to launch and navigate into the “Toolbox” section. Look for the “System Repair” option and initiate the process while ensuring the Android device is connected to the computer through a USB cable.
Step 2: Start Repairing the Android
After selecting the nature of the Oppo A18 device you want to repair, navigate to a new window where you need to click “Start” to initiate the system repair process.
Step 3: Define the Parameters of Device
You will be redirected to a new window where you need to define and verify some parameters before repairing the Android. Select the “Brand,” provide a “Name,” select a “Model,” and provide a country where it has been bought. Define the “Carrier” and click “Next” after confirming.
Step 4: Put Android in Download Mode
Whatsoever Android you own, you need to put it in Download Mode, depending on the buttons that the Oppo A18 device has. The repairing process initiates as you enter the Download Mode, and new firmware is downloaded on the platform.
Step 5: Fix the Firmware of Android
Once it downloads and is verified, click the “Fix Now” button to repair the Android successfully. You may need to provide a PIN to confirm the process. Once provided, the next screen shows the progress of the repair process. As it completes, click the “Done” button to conclude fixing the Android system crash issue.
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Part 11: Factory reset the Oppo A18 device to fix the Android crash issue Factory Resetting is advisable only when nothing else works. Also, there are two ways of doing it depending on whether the Android crash is permanent or temporary.
Follow the steps given below to factory reset your device while it is switched on:
1. Visit “Settings”.
Now select “Backup and Reset”.
In this step, select “Factory data reset” and then “Reset Device” to confirm Factory Reset.
The process of factory resetting your Oppo A18 is risky and cumbersome, as it deleted all data, but it helps to fix the Android System crash error.
You may also follow the instructions given below to Master set your device in Recovery Mode if it won’t turn on after an Android system crash has taken place:
When you are at the Recovery Mode screen, scroll down using volume down key, and from the options given, select “Factory Reset” using the power key.
Wait for your device to perform the task and then:
Reboot the phone in Recovery Mode by selecting the first option.
Bottomline, the tips given above have helped many to solve the Android system crash issue. So do not hesitate to try them, but don’t forget to extract your data with Dr.Fone’s Data Recovery tool.
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8 Solutions to Solve YouTube App Crashing on Oppo A18 YouTube can be considered among the apps that are widely used by users. And seeing “Unfortunately YouTube has stopped” error on the Android display screen is a thing that you can’t stand. The reasons can be multiple for why YouTube is not working or it keeps crashing. For instance, an outdated app, not updated OS, low storage, or corrupted cache. No matter what has triggered the problem on your device, we have solutions for it. Please read and follow this article to get the problem sorted.
Restart the app The issues like YouTube keeps crashing are often get disappeared by just quitting and restarting the app. This is helpful to give a fresh start to the app and restarting will bring your device back to normal. Hence, the first resolution we would like to recommend is to restart your app. Follow the steps to do this.
Go to “Settings” and tap “Apps & Notifications” or “Application”.
Choose “YouTube” from the list of apps and open it.
Tap on “Force Close” or “Force Stop”.
You can now restart your device and then launch the app again. Check if this works or not.
Restart the Android Similar to the app, if you restart the Oppo A18 device, it will start operating properly making the YouTube app work better than before. So, as the next tip, please restart your device.
Long press the “Power” key.
Press “Restart” and confirm.
Use a VPN There is a possibility that YouTube is prohibited in your region. Banning some apps is done for some safety reasons. And therefore, you need to check if this is done in your area or not. If yes, then we shouldn’t mention the reason why YouTube is not working on Android. In such a case, use a VPN to access YouTube.
Clear the Cache of YouTube When the stored cache files start getting crash, the “Unfortunately YouTube has stopped” sort of errors are likely to appear. And therefore, if the above method didn’t work, try this one to get the problem resolved. We are going to clear the cache of YouTube to make it run smoothly.
Go to “Settings” and tap “Apps & Notifications”/”Applications”.
Now, choose “YouTube” from the list of apps.
Open “Storage” and click on “Clear Cache”.
![Youtube not working android - clear cache](https://images.wondershare.com/drfone/article/2019/06/clear-cache-youtube.jpg)
Reinstall YouTube from Play Store If YouTube keeps crashing, make sure to uninstall and reinstall it from Play Store. Doing this will make the app gets refreshed, remove the glitches, and make it normal as a result. Here are the steps for it.
Firstly, uninstall it by “Settings” > “Apps” > “YouTube” > “Uninstall”.
Now, go to the “Play Store” and search “YouTube”. Tap on “Install”.
Reset Network Settings The apps that run on the internet might start crashing due to connectivity issues. Therefore, resetting the network settings once can work as a great remedy to follow when YouTube has stopped on your Oppo A18. This will remove all your network settings like Wi-Fi passwords etc.
Tap on “Settings” followed by “Backup and reset”.
Look for “Reset Network Settings”.
Note: In some phones, you may find the option in “System” > “Advanced” > “Reset”.
Re-flash the stock ROM of Android in one click There are times when a corrupted system gives you such errors. And therefore, you should try re-flashing the stock ROM on your Oppo A18. Before you wonder how we would like to introduce a highly recommended tool for this. It is Dr.Fone - System Repair (Android). It holds the proficiency to flash the stock ROM in just a click. So, when your YouTube is not responding due to a corrupted system, make use of this tool to get it solved. The benefits associated with this tool are as follows.
Android repair tool to flash the stock ROM of Android
Easy to use and quickly fixes the issues
Has the capability to repair any Android system issue
1000+ Android models are supported
Takes no special technical knowledge to use
Higher success rate with promising results
3981454 people have downloaded it
Step 1: Launch the Tool
Start with visiting the website on your PC and downloading the Dr.Fone toolkit. Install and open the tool. Now, from the main screen, choose “System Repair”.
Step 2: Connect Device
With the help of the USB cord, connect your Oppo A18 to the computer. Click on “Android Repair” now from the left panel.
Step 3: Enter Information
Now, as the next step, you need to make sure of the details of your device. Please enter the name and brand of the phone. The country, region, and career are also to be added. Hit on “Next” once done.
Step 4: Download Firmware
Now, follow the instructions given on the screen according to your device. Click on “Next” and the program will start downloading the firmware.
Step 5: Repair the Issue
Lastly, when the firmware is downloaded, the system will start getting repaired on its own. You need to wait until you are informed about the completion of the process.
Reset Factory Settings of this Device When nothing works, the last resort you can go with is resetting the Oppo A18 device to factory state. Doing this will remove any sort of conflicting bugs and other stuff. However, this will remove the data from your device. So make sure to backup everything before going with this method. The steps are:
Open “Settings” and tap “Backup & reset”.
Go to “Factory data reset” and tap “Reset phone”
Authentication Error Occurred on Oppo A18? 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 Oppo A18 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 Oppo A18 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 Oppo A18 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 Oppo A18 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.
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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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An easy-to-operate tool to fix Android system issues like a Wifi authentication error
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Supports all the new Oppo A18 devices like Galaxy S8, S9, etc.
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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.
After the Dr.Fone tool is downloaded, install, and launch it. You can see the following screen.
Connect your Oppo A18 to the computer, and select “Android Repair” in the middle.
Select all the details that match your device, and click “Next”.
Next up, you should boot your Oppo A18 in download mode by following the on-screen instructions.
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 Oppo A18 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 Oppo A18 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.
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.
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.
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Modify network connection If the above solution won’t work, then you would be required to walk the extra mile to fix the Oppo A18 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.
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.
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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 Oppo A18 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 Oppo A18 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 Oppo A18 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.