Vivo S17e Not Receiving Texts? 10 Hassle-Free Solutions Here

If you are using an Vivo S17e, you might have encountered the issue of not receiving texts. This issue can be quite frustrating, as it prevents you from staying connected with your friends and family. However, there are several ways to fix this issue and get your texts back up and running. In this article, we will show you some of the best solutions to fix the issue of not receiving texts on Vivo S17e.

It is very common that the Android messaging app is not working on many devices especially broken devices . People often encounter this issue in Vivo S17e phones, even the latest ones.

You might find lots of people online stating I can’t receive text messages on Android. And usually, people don’t find a legit solution for this issue. If you are also experiencing this sort of issue on your Vivo S17es, then don’t panic. We have a series of methods that can supposedly fix the problem. But at first, we will learn what the main reasons this problem arises are and how do you know that it is consistent not some random error.

Take a look at the sections below, and you will learn all possible things regarding the messaging application on your phone.

Part 0. Symptoms and Causes of Android Not Receiving Texts

The most common symptoms that would clarify that your Android messaging service is not working right are given below:

You will stop receiving any texts all of a sudden.
You can’t send or receive a text message.
Whenever you try to text someone, the message sent failed notification pop up on the screen.

The reasons why your Android is not receiving texts are given below:

Network issue
Insufficient memory
Mis-configuration of device settings
Switching of devices
A glitch in the messaging app
Software issue
Carrier problem with the registered network.

Apart from all these reasons, some additional causes are also there that can lead to this issue.

Part 1: One-click to Fix Android not Receiving Texts by Android System Repair

If you are not willing to waste your precious time fixing the message problem, then you can switch to the top-rated Android repair tool, i.e., Dr.Fone - System Repair (Android) . With this software, you can easily fix issues like the black screen of death, crashing apps, can’t receive text messages on Android, or failed download. If you have no idea what is causing the message app problem, you can simply think of repairing the whole Android system.

You surely need to try the software as it can perform the following tasks:

Dr.Fone - System Repair (Android)

Android repair tool to fix Android Not Receiving Texts

Fix the Android system without technical knowledge.
Complete Android repair tool for all brands and models.
Simple and Easy Repair procedure
100% guarantee that the problem will be fixed.
Also available for iOS devices.

3981454 people have downloaded it

You can download and install the software on your system and use it to fix any issue. Then follow the steps given below:

Step 1: Launch the application and choose the System Repair option from the main interface. Connect your Vivo S17e to the computer and choose the Android Repair mode, and hit the Start button to begin.

Step 2: You will have to provide information about your device, including the brand, name, model, country, and carrier. In between, you will be notified that your device repair might erase the existing data of your device.

Step 3: Agree with the conditions and hit the Next button. The software will download the firmware package automatically. It might take a while to finish the download, and when it is finished, the repair process will be initiated automatically.

It won’t take long, and your Vivo S17e will be repaired. Now you will be able to receive and send text messages without any hassle.

Part 2: Remove and Insert the SIM

The easiest thing that you can try if your Vivo S17e is not receiving any text messages is because the SIM is not inserted right. If your SIM card is inserted wrong, then it is obvious you can’t receive text messages on Android. Simply take out the SIM card, see how it must be inserted, and do it correctly. Once the SIM is inserted in the right way, you will receive the pending text messages immediately unless there is another issue preventing it.

Part 3: Check Network Connection

Another simple method that you can try if you are not receiving text messages on Vivo S17e phone is to check your network connection. Usually, you can see the bar on the top of the screen. Maybe the problem exists because you have no signal strength at the moment.

Part 4: Consult your Carrier about the Data Plan

Maybe you are unable to get messages on your Vivo S17es because your existing data plan has expired. You can directly contact your Carrier about the issues where your Vivo S17e is not receiving texts. If your plan has expired, then you might have to renew it immediately. If not, then try out other fixes to resolve this issue.

Part 5: Try the SIM card in Another Phone or Slot

Sometimes, people complain that Vivo S17e is not receiving texts from iPhone, and it might be because of the SIM card issue. So, the best thing you can try is to remove the SIM from your current phone and insert it into another phone.

When you are offline the message is saved on the server and just about when you get online, the text messages are delivered. If it is the SIM issue, then you will not get the message unless you contact your network operator.

Part 6: Clear the Cache of Messaging App

In smartphones, the memory space often gets filled up with cache. And not everyone remembers that they have to clear the cache from time to time. The accumulated cache can also lead to this issue. So, if your Android messaging app is not working, you have to clear the cache memory.

Step 1: Open the Settings and go to Apps. Find the Messages app from the list and tap to open it. There you will see the storage occupied by the app along with the cache.

Step 2: Click on the Clear Cache button and wait as the Vivo S17e device free up the memory of your device.

Once the cache is cleared, you can also clear the data if you want to and you’ll instantly receive the text messages on your phone.

Part 7: Delete Useless Messages to Free Up Space

Sometimes, if you are not receiving text messages on Vivo S17e, it means that you need to clean up the clutter of useless messages from your phone and SIM both. The phone messages can be deleted directly from your phone. But the SIM card messages needed to be deleted separately. The SIM cards don’t have enough memory to hold plenty of messages. Therefore, once the storage is full, you will stop receiving messages entirely.

Step 1: Open the messages app and open settings. Look for an option that says “Manage SIM Card Messages”. Sometimes, you can find this option under Advanced Settings.

Step 2: There, you will see the existing messages on the SIM. You can either delete all the messages or perform a selective deletion to free up space.

Part 8: Try a Third-party Messaging App

If you can’t receive messages on your default app, then you can try installing a third-party messaging app. Nowadays, most people use social media messaging apps like WhatsApp, Skype, etc. for messaging. So, if somehow, the Android is not receiving texts, then the new apps can help you to send and receive messages with a non-native network.

Further Reading: 15 Best Free Chat Apps in 2022. Chat Now!

Part 9: Ensure your Phone is Fully Charged

Another possible fix to this problem might be your phone’s battery percentage. Sometimes, when the Android is in power saving mode, it disables the default apps too. As a result, you can’t even receive text messages on Android. So, when you plug in the charger, the power saving mode will be disabled, and you will get your text messages.

Part 10: Ensure It’s Not An iMessage From iPhone

If the Vivo S17e phone is not receiving texts from iPhone, then this might be a different issue. Usually, there is an option on the iPhone where they can send texts as iMessage and simple messages. If the iPhone user sends the text as iMessage, then it will not show up on the Android device. To resolve this, you have to follow the steps below:

Taking the iPhone in hand makes sure that you are connected to a network. Open settings and scroll to look for the Message option. Toggle the bar next to the iMessage option to turn it off.

If the FaceTime option is also on, you might have to deactivate that too to send messages and calls as regular ones.

Part 11: Update Your Android

Updating the operating system to the latest Android version can fix some system errors which may cause the “Android not receiving texts” issue because the latest version always brings a better user experience and fix the know bugs.

Conclusion

Now you know several methods that can work if the Android messaging app is not working. If you experience this kind of issue with your Vivo S17e, then you are most likely to resolve them with these fixes. If none of the solutions seem to fix the issue, then you can take the help of Dr. Fone - System Repair (Android) feature. With this tool, you can resolve all kinds of working issues on your device.

Vivo S17e Not Connecting to Wi-Fi? 12 Quick Ways to Fix

Nowadays, it’s pretty much essential to have your Vivo S17e or smartphone connected to the internet. Whether you’re watching videos, looking something up, or using any kind of app, you need the internet for these applications to function correctly.

This is why it can so annoying when it gets to a point where the internet connection isn’t working. However, the problem of a web page not loading correctly is just the tip of the iceberg.

There are plenty of problems you could experience, whether it’s the Wi-Fi network keeps disconnecting on its own without any warning, perhaps a security issue where the passcode or IP address isn’t being registered properly, or even if the connection is just being super slow, even if there’s no reason too.

Luckily, despite there being so many problems out there, there are also many solutions. Today, we’re going to share with you the complete definitive guide to help you get your Vivo S17e connected and free from problems and issues.

Part 1: Restart your Vivo S17e

Begin by powering off your Vivo S17e and unplugging your router. Wait for about a minute before plugging in the router and turning on your device. This simple reset can often restore stable connections and fix Android wifi not working.

Part 2: Turn on Airplane mode and turn off

Turn on Airplane Mode for a few seconds, then turn it off. This maneuver refreshes your device’s network connections and might rectify the Android not connecting to wifi issue.

Part 3. Check Wi-Fi Router settings

The third step you’ll want to take is making sure the internet router in your house is working properly and is actually sending internet data to your Vivo S17e. Of course, if you have other internet-enabled devices connected to the same router and they’re working fine, you know this isn’t the problem.

However, if you’ve got a problem with Wi-Fi not working on your Android and other devices in your home or office, you know you’ve got a router problem. Here’s how to solve it.

Go to your internet router and check the indicator lights
While this depends on your device, a green or blue light will mean the connection is good, whereas a red light indicates a problem
Press the Restart button on your router and wait ten minutes before reconnecting your device and connecting again
Call up your internet provider to see if there’s an internet connection issue in your area
Open your web browser and log into your router settings to ensure your Vivo S17e is connected to the Wi-Fi network and is allowed to send and receive data

Part 4. Boot your Android in safe mode

If you’re unable to connect to the internet, but other devices have no issues, you may find the issues is coming from within your Vivo S17e itself. Fortunately, there are ways you can see whether this is the problem.

The best way to do this is to boot your device in Safe Mode. The process for doing this will depend on the make and model of your Vivo S17e, but the basic process goes as follows;

Turn off your Vivo S17e by holding down the Power button and tapping Power Off. Wait a few minutes to ensure the Vivo S17e device is completely off
Press and hold the Power button to turn your phone on, but the press and hold both the volume up and volume down buttons at the same time
You will see the words ‘Safe Mode’ appear on your screen as the Vivo S17e device loads
Now you will be booted in Safe Mode. Try connecting to the internet again to see if it works

If your device connects to the internet while in Safe Mode, you’ll know you have a problem with an app or service that’s running on your device. If this is the case, you’ll need to go through your apps and delete them and then reinstall them one at a time until you find the app or service that is causing your internet problems.

Part 5. Check the Android Wi-Fi adapter

If you’re using a Wi-Fi adapter on your device to connect to the internet, you’ll need to make sure this is working. This could be an adapter on your Vivo S17e itself, especially if you’re using an older device, or if you’re using an adapter to boost the ranger of your router network.

You need to check both of these to make sure your connection is working properly.

If using an Android Wi-Fi adapter, make sure all the Vivo S17e device drivers are up to date, and if you’re using an app, make sure the app is updated, and all the settings allow an internet connection
If you’re using a router adapter, make sure it’s set up properly, and your Vivo S17e is connected to the adapter using the correct passwords. Try connecting another device to see if the internet connection is working on there
Whichever method you’re using, try disconnecting your Vivo S17e and forgetting the network, and then reconnecting and entering the right password to refresh the connection

Part 6. Check SSID and IP address on Android

To make a Wi-Fi connection work, your Vivo S17e needs to match two codes that connect and relate to your router to establish the connection and work correctly. These are known as the SSID and the IP address.

Every wireless device will have its own codes and making sure they’re matched to the network you’re connecting to is crucial to ensuring the internet is working on your Vivo S17e. Here’s how to check on your Vivo S17e to make sure everything is correct.

Tap the Settings menu option, followed by Wi-Fi on your Vivo S17e
Turn on your Wi-Fi network and connect it to your router
Find the router name (SSID) and make sure it’s exactly the same as the SSID written on your router
Once connected, tap the Wi-Fi network and you will see the IP address. Check both your phone and the router codes to make sure this number matches

When these numbers are matching, if your Android is still not connecting to wifi, you’ll know this wasn’t the problem.

Part 7. Fix Android system issues in one click

If none of the solutions above are working, this could indicate a real problem with the firmware and operating system of your Vivo S17e. Fortunately, a fast solution to get everything working again is to completely repair the software of your phone.

You can do this easily using powerful Android recovery software known as Dr.Fone - System Repair (Android) . This is the leading repair tool on the market and is designed to fix and repair any firmware and software problems you may be having.

Dr.Fone - System Repair (Android)

A one-click tool to fix Wi-Fi not working on Android

Can repair Android from any problem including the black screen of death
A trusted software application used by 50+ million people around the world
The most user-friendly mobile repair application available right now
Supports over 1,000+ Android models and devices
A world-class customer support team to help you whenever you need them

3,483,527 people have downloaded it

To help you have the best and the most accurate experience when using the Dr.Fone - System Repair (Android) application, here’s a complete step-by-step guide on how to use it.

Step One Make your way over to the Wondershare website and download the Dr.Fone - System Repair (Android) software. Install it onto your computer by following the on-screen instructions.

Once installed, connect your Vivo S17e to your computer using a USB cable, and open the software, click “System Repair”.

Step Two Click the “Android” option in the menu and then click “Start” to begin the Repair process.

Step Three On the next screen, go through the options and use the drop-down menus to make sure the information is correct for your individual device. Accept the terms and conditions of the software, and then click the “Next” button.

Step Four Confirm you want the software to carry out the repair process by typing the ‘000000’ code into the pop-up box and pressing Confirm. Make sure you read everything displayed in this box beforehand to know what’s happening.

Step Five Now put your phone into Download Mode by following the on-screen instructions, so your device is ready for the repair process. The method for getting your phone into Download Mode will vary depending on your device, so make sure you’re following the right instructions.

Step Six Once the software has detected your device in Download Mode, it will automatically begin the repair process. You need to make sure your device stays connected throughout this time, and your computer stays on.

The whole process is automatic, so you won’t need to do anything until it’s finished. Once completed, you can disconnect your phone and start connecting it to the internet as normal!

safe & secure

Part 8. Check the Wi-Fi connectivity on another phone

When experiencing problems with your Wi-Fi network, it’s worth noting the problem might not be with your phone, but rather the Wi-Fi network itself. This is why it’s important to make sure you check the connection on another device.

Of course, if you’re already using another phone on your Wi-Fi network, you know this isn’t the case. However, if you’re not sure, here’s what you need to do;

Get another Android or iOS phone or tablet
Open the Settings menu and connect to the Wi-Fi network you’re having problems with
Enter the password and connect to the network
Open a web browser on the phone and try loading a web page
If the page loads, you know the Wi-Fi network isn’t the problem
If the page doesn’t load, you know you’ve got a problem with your Wi-Fi network

Part 9. Change the password of the Wi-Fi

Each Wi-Fi network router will give the opportunity to choose and change the password you have to let devices connect to your network. It’s important you try changing this because you never know if someone else has accessed your network and could be blocking your device. Here’s how it works;

Log onto your computer and open your Wi-Fi settings
Depending on the brand and method of your individual router, navigate to the Wi-Fi password settings menu
Change the password to something complicated using all available digits and characters
Save the password and restart the router to disconnect all devices
Now connect your Vivo S17e to the router using the new password

Part 10. Reset network settings on Android

Just like the method above where you’ll be effectively resetting the network settings on your router, if this hasn’t worked, you’ll be able to reset the network settings on your Vivo S17e, hopefully removing the bugs and allowing you to connect.

Here’s how you can do this easily on your Vivo S17e;

From the home screen of your Vivo S17e, open the Settings menu
Tap the Backup & Reset option
Tap the Reset Network Settings option
Tap the Reset Network option
If you need to, enter the PIN number or passcode for the Android device, and the Vivo S17e device will confirm the reset has taken place
Reconnect your Vivo S17e to your Wi-Fi network for the changes to take effect

Part 11. Clear partition cache in recovery mode

As you continue to use your Vivo S17e, the partition cache will fill up with data your device needs and doesn’t need. However, by clearing your device’s partition cache, you can make clear up some space which should help your device have enough memory to connect to the internet.

Turn off your Vivo S17e
Turn it on by holding down the power button, volume button, and home button
When your phone vibrates, let go of the Power button, but continue to hold the volume button
When a menu is displayed, use the volume buttons to navigate the menu
Select the Android System Recovery option, followed by Wipe Cache Partition
Restart your device and connect to the internet

Part 12. Reset factory settings

If worse comes to worst, another option you have is to factory reset your Vivo S17e. As we’ve spoken about above, while using your phone from the day you started using it, your device will fill up with files and data which can become messy and causes bugs.

However, by factory resetting your device, you can start again from the factory default from which you first received it, ultimately clearing the bugs. Make sure you back up your device before proceeding because it will erase your personal files.

Open the Settings menu on your Vivo S17e
Navigate to System > Advanced > Reset Options
Tap the Reset phone option, and enter your PIN code if required
Tap Erase Everything
Wait for your phone to complete the process
Restart your device and connect to the internet

safe & secure

How To Deal With the Vivo S17e Screen Black But Still Works?

With the advance of technology over the years, many of us rely on smartphones to communicate, work, and play. As such, it can be pretty concerning when your device begins to act strange like your phone screen suddenly went blank.

Whether you’re using an iPhone or an Android device, you’ll eventually encounter a problematic symptom like this. Therefore, this article will explore what to do when your phone screen goes black. After exploring below, you’ll learn the common causes of why your phone screen went black and how to fix it. Read on below to learn more.

Part 1: Why Did My Vivo S17e Screen Go Black but Still Works? Common Causes

Experiencing a cell phone blank screen is not exclusive to Android or iOS users. A phone screen not turning on happens all the time due to several factors that may or may not be out of your control. While they can be frustrating, here are some common causes you should know as to why your phone screen went black but still works.

A Drained Battery

The first thing that comes to mind when your phone screen suddenly goes black is you have a drained battery. Even though this is obvious, it’s still important to mention, as this is usually what most people encounter. To fix this problem, plug your smartphone into a charger and wait for your device to turn on again. If it works, then you just prevented a rather annoying experience.

App Troubles

If your phone is working, but the screen is black, there’s also a high probability that you are having an isolated issue with a particular application. An app could be loading something, which often happens for streaming apps such as YouTube, Netflix, Prime, and more, especially if you have slow internet connectivity.

Software Issues

A potential reason why your phone screen went black but still works could be because of your smartphone’s software. This problem suggests that your Vivo S17e is crashing, potentially freezing your device if not addressed immediately. If this is the cause, then your device is likely experiencing a critical system error, and you should directly try to reboot your phone.

Hardware Problem

If you dropped your phone, there’s a high chance the LCD connectors went loose due to the physical impact. If this happened to you, the phone might be working, but the screen is black due to the LCD cable dislodging. Another issue could be your phone got exposed to extreme temperatures. This can also cause a black screen but your phone is still on.

Part 2: How To Fix Black Screen on Your Phone

Here are four valuable methods you should know on what to do when your phone screen goes black on your iPhone or Android smartphone to get them working again.

Method 1: Force Restart your Android/iOS Smartphone

If your phone screen is black but still works, force restarting it is the easiest way to fix it. The following are the detailed steps for both Android and iOS devices.

How to Force Restart your Android Device

Here is how you force restart an Android device when your phone screen doesn’t turn on.

Step 1: Press and hold the Power and Volume Down buttons simultaneously.

Step 2: Hold the same buttons until your device restarts, and display the phone’s logo.

How to Force Restart your iOS Device

If you own the latest iPhone models, here are the method of restarting it from iPhone 8 up to 14.

Step 1: Press and immediately release Volume Up. Next, press and immediately release Volume Down.

Step 2: Press and hold Sleep/Wake until you see the Apple logo.

Note

If you own an iPhone 7, press and hold the Side button and Volume Down simultaneously until you see the apple logo.

Method 2: Uninstall or Update Outdated Applications

In some cases, your phone screen is black but still works because of installing incompatible apps on your iOS/Android device. If the installed app is frequently crashing, it may be the source of a blank cell phone screen. Uninstall the problem app to see if the black screen disappears or not.

Method 3: Inspect the LCD Connectors

If your phone screen goes black but still works, you should inspect the logic board to the LCD screen to see if it has become disconnected. It is common for smartphones that often get dropped a few times. It’s best to plug the connectors back to regain your screen’s functionality.

However, this requires technical know-how. It’s better to seek help from a professional as you could risk causing more damage to your device if you don’t know what you’re doing.

Method 4: Perform a Factory Reset

If all the methods above did not solve your problem, the last resort you can take is to perform a Factory Reset. This method works on Android and iOS smartphones and erases all your data. It is the quickest way to try to fix why your phone screen went black. Here are the steps.

For Android Users

If you’re on Android, tap Settings > Backup and Reset. Tap on Factory data reset > Delete all to initiate the factory reset.

If you cannot do this, here’s how to perform a factory reset manually using Recovery Mode.

Note

The process of booting into Recovery Mode is not the same across all Android devices and depends on the manufacturer and model of your phone. Refer to your owners manual to see which method is the right one for your Vivo S17e.

Step 1A: Press and hold the Power button and Volume Down buttons simultaneously and continue holding until the screen starts.

Step 1B: For Android devices with a Home button, press and hold the Home button and the Power button and continue holding until the screen starts.

Step 1C: Press and hold the Power button as well as the Volume Up and Volume Down buttons simultaneously and continue holding until the screen starts.

Step 2: Use the Volume buttons to navigate the choices and select Wipe data/factory reset and confirm your choice with the Power button.

Step 3: Simply wait for the process to complete and wait for your Vivo S17e to restart automatically.

F****or iOS Users

Step 1: For iOS users, meanwhile, tap Settings > General > Transfer or Reset iPhone.

Step 2: Next, choose Erase All Content and Settings. Check the list of items you want to remove.

Step 3: Tap Continue and enter your iPhone passcode. A message warns you that the process will delete all media and data and reset all settings.

Step 4: Tap Erase iPhone to confirm. You’ll be asked to type in your Apple ID and password if Find My is active. Enter your password and tap Erase.

Part 3: How To Fix Black Screen Phone With an Alternative

If your phone screen went black but still works and doing the methods above did not solve the issue, you can use Wondershare Dr.Fone for iOS and Android as a last resort. It’s one of the most popular smartphone repair tools today, enabling you to fix all kinds of annoying scenarios. These include black screen, boot loop, white screen of death, bricked iOS or Android device, and more.

Key Features

Dr.Fone – System Repair for iOS and Android has fantastic features you can immediately take advantage of. Here are its key features below.

Fix all Android and iOS Problems in Minutes

Dr.Fone – System Repair can fix all kinds of issues on your Android/iOS, such as a black screen, white screen of death, screen freeze, boot loop, or recovery mode. All of this can be done within less than 10 minutes to save you precious time.

Supports up to 1000+ Android Smartphones and the latest iOS

All iOS versions, including the latest iOS 16 and iOS 16 beta, are fully supported by Dr.Fone – System Repair. The app handles all your smartphone issues without data loss to secure your info. On the other hand, if you own an Android, the app supports up to 1000+ Android smartphones, making it highly versatile for Android owners.

Tech Specs

Dr.Fone – System Repair (Android)’s minimum system requirements for your computer are listed below.

Computer OS	Android
Windows 11, 10, 8.1, 8, 7	Android 2.1 and up to the latest

Meanwhile, here are the system requirements for Dr.Fone – System Repair (iOS).

Computer OS	iOS
Windows 11, 10, 8.1, 8, 7	Supports all iOS versions, including the latest iOS 16 and iOS 16 beta
macOS 12, 11, 10.15, 10.14, 10.13, 10.12, 10.11, 10.10, 10.9, 10.8

Pros and Cons

If you’re still undecided about Dr.Fone – System Repair, here are its pros and cons.

Pros

Fone – System Repair for iOS and Android has a clutter-free and beginner-friendly user interface. It’s easy to understand and use, so you can start immediately.
Both the iOS and Android versions finish the repair tasks within less than 10 minutes to save you time.

Cons

Each version for each OS is sold separately.
The free version works up to your device’s compatibility. Once you start the repair process, the app will ask you for a valid license key.

How to Fix Black Phone Screen With Dr.Fone – System Repair

Here’s how to fix your phone screen with Dr.Fone – System Repair on iOS/Android.

Step 1: Download and install Dr.Fone – System Repair for iOS or Android. Next, open the program and connect your smartphone.

Step 2A (For iOS): Choose the correct model of your iPhone for the program to be able to download the appropriate firmware package.

Step 2B (For Android): Click Start. On the next window, choose the Brand, Name, Model, Country, and Carrier of your smartphone, then click Next.

Step 3: Follow the on-screen instructions provided on the main program window and wait for the repair process to complete.

safe & secure

4,262,204 people have downloaded it

Conclusion

Our increasing reliance on smartphones has led to amazing advancements in new technologies. However, lingering issues such as your phone screen not turning on or your phone screen being black but still working are ongoing problems to many. That’s why learning how to prevent these events is essential to take care of your smartphone.

Doing all the recommended methods above usually solves the case. If the different fixes don’t work for you, Dr.Fone – System Repair for iOS and Android can help resolve all your problems within less than 10 minutes. You can download it for free on Windows and Mac to test it yourself.

HowTo

Vivo S17e Not Receiving Texts? 10 Hassle-Free Solutions Here | Dr.fone