Monday, September 10, 2018

How to recover lost and deleted Contact on Huawei P20

Nowadays, HUAWEI smartphones are becoming more and more popular and have gained a lot of fans. In the smartphone industry as a well-known brand, HUAWEI is concerned about the sale of high-end smart phones. For mobile phone users, regular backup of important data is a good habit. However, many users still do not have backup data loss.

How to recover lost or deleted data from HUAWEI P20

Data loss is a common problem for Android mobile users, including HUAWEI users. In fact, they are not really from your HUAWEI phone, but it's not easy for you to get it back. To avoid overwriting deleted data, you'd better stop using your phone and recover your lost files as soon as possible.

Android data recovery is a good helper that can help you restore deleted data from HUAWEI phones. It can recover all files, including audio, pictures, contacts, videos, text messages, phone records and other files from Huawei mobile phones. Android Data Recovery supports multiple Android handsets and tablets, such as Huawei Mate, P, Y, nova, Honor, Samsung, HTC, LG, Motorola, ZTE, Nokia, Xiaomi, etc. This Android data recovery tool can help you recover data lost due to different problems, such as accidental deletion, broken devices, water damage, virus attacks, or system crashes.

In addition to the above features, you can also use it to extract data from broken Samsung phones or fix problems with Samsung mobile systems like freezing, crashing, black screens, virus attacks, screen-locked, and mobile phones back to normal.

Now you can download the trial version and retrieve your data loss.

 

How to Recover Lost/Deleted Contacts on Huawei P20

Step 1. Run the Program and Connect Huawei Phone

To begin with, please download and run the Android ToolKit – Android Data Recovery on your computer. Now you can see many different options displayed on the program, select “Android Data Recovery” option to go on. “Broken Android Data Extraction” and “Android Data Backup & Restore” are also available.
Connect your Huawei P20 device to the computer with a USB cable. Make sure USB debugging is enabled on your Android phone.
After that, you should allow the program detect your Huawei phone to the computer, you will get pop up message on your phone, simply tap “OK” and ensure USB debugging on your phone.

Step 2. Select Contacts File to Scan

Now the program will detect all data on your device.You can select the specific files you want. For contacts recovery, you should click “Contacts” file, then click the “Next” button to go on.
You’ll get a window as follow on your device after your Android phone is detected by the program. Now click “allow” to allow the program scanning and analyzing the deleted contacts from Huawei phone.
The program will cost you some minutes of scanning all the data from your phone.

Step 3. Preview and Restore Deleted Contacts from Huawei P20 Phone

In the last step, you are allow to preview all recoverable data on the list of program after the scanning process finished. Select the contacts you want to restore and then click “Recover” button under the “Contacts” file, to save them on the computer.
 

How to recover lost and deleted data from Nokia 9

With the rapid development of smart phones, people are increasingly relying on smart phones. Powerful functions can meet people's various needs, but at the same time smart phones will store more and more data, data loss will occur more and more.

Almost every day, people who use smartphones delete or lose some data by mistake, or upgrade systems that cause data loss, system crashes, or viral attacks. In short, accidental loss or deletion of important data is a common phenomenon in today's smartphones.

My friend lost some data in NOKIA 9 due to his carelessness. What would you do if you lost the data you still need on your phone? Some people say just let it go because he has no other choice.

Don't give up so early. Losing data from NOKIA 9 is not a big problem for you. To solve this problem, Android data recovery is your ideal recovery assistant. Whether your phone is Nokia, Samsung, HTC, LG, Sony, Motorola, Huawei, etc., more than 6000 Android devices are compatible globally.

Use Android data recovery. You can recover deleted or lost data including call records, videos, text messages, contacts, photos, WhatsApp messages, documents, and other files. With the help of the software, you can quickly recover the deleted data, and its steps are very simple and convenient. Software can face all kinds of data recovery scenarios, and almost all data recovery problems can be solved. Therefore, it is also known as the world's first Android smartphone and tablet PC data recovery software.

Please click on the free download software, and here's how to recover the deletion and data loss programs from your Nokia 9.

 

Steps to Recover Deleted & Lost Data from Your Nokia 8/9

Step 1. Run Android Data Recovery and connect your phone to PC

Download and install Android Data Recovery on the computer. After installation, please run the software. The main screen displays as following, you need select Data Recovery.



Then, connect your NOKIA 8/NOKIA 9 to the computer using a USB cable. Secondly, you need to enable USB debugging on your NOKIA 8/NOKIA 9. You can follow the guide as below.

Step 2. Choose the file types to scan

Next, you see all the scanned file types. Just choose the data you need to scan and then click "Next" button.


Step 3. Scan your NOKIA 8/NOKIA 9 to find the lost data

There are two scanning modes. You can read the description and choose the "Standard Mode" or the "Advanced Mode". We recommend you to try "Standard Mode" first, which works faster. After you select a mode, click "Start".



Note: There might be a Superuser authorization appearing on your device during the scan. If you get it, click "Allow" to continue. If not, just skip this step.


Step 4. Preview and recover deleted data on NOKIA 8/NOKIA 9

When the result comes out, you are allowed to preview each file on the list. When you find and tick those data that you need to recover, click "Recover". All you need is just to wait few seconds to retrieve data on your computer.

 

How to recover lost or deleted contact from Samsung Galaxy S9/S9 Plus

Conclusion: data loss often happens to us. If you edit, accidentally delete important contacts in your Samsung S9/S9 Plus. How to recover lost contacts from Samsung Galaxy S9/S9 Plus? Continue reading this guide and learn three ways to recover deleted contacts from Samsung Galaxy S9/S9 Plus.

Lost contact with Samsung Galaxy S9

Losing contact with Samsung can be a troublesome matter. Even if you use your equipment warily, there will still be the possibility of accidents. In addition to accidental deletion, there are several main reasons that cause you to lose contact. For example, factory reset, formatting, Android operating system update, root, equipment failure, system crash and so on. Whatever causes you to lose contact, you may be eager to restore deleted data as soon as possible.

There are several main reasons that cause you to lose contact. For example, Android crashes, accidentally deletes, viruses attack your phone, deletes some contacts you realize you need them, wants to recover, and so on. To make matters worse, you don't have any backup of your contacts. Whatever causes you to lose contact equipment, you may be eager to restore deleted data as soon as possible.

Restore contacts deleted in Samsung Galaxy S9

In this case, you need a good data recovery program to help your Samsung Galaxy S9 recover deleted or lost contacts. Android data recovery is the best choice for you. To remove contacts from Samsung Galaxy S9 requires only a few clicks. In addition to contacts, other data can be recovered, such as text messages, photos, videos, phone history, audio, WhatsApp messages, and more.

Android data recovery is designed for Android devices to recover deleted / lost data in any case, but also to solve the daily problems encountered, such as: screen locking, screen breakage, black screen, white screen, system crash, screen no response, etc. Android data recovery supports most Android devices, such as Samsung Galaxy S9/S8/S7/S6/S5, HTC, Motorola, Huawei, Lenovo Google Pixels, Millet, ZTE, Nokia, etc.


Recover Deleted Contacts from Samsung Galaxy S9 Directly

Step 1.Run Program and Connect Samsung Galaxy S9 to the Computer
To begin to with, run the Android Data Recovery program on the computer, click”Android Data Recovery” option in the home page of program.Then please connect your Samsung Galaxy S9 phone to the computer via an USB cable.



Step 2.Allow Program Connect Samsung to the Computer
Please click “OK” on the phone and go on, allow the program detect your device on the computer.



Step 3.Select Contacts File to Restore from Samsung
After allowing program detect your device on computer, you’ll see this window, different types of files can be chose to be scan by program. Select the “Contacts” file to scan by program then click “Next” to go on.



Tips: You can click “Select all” to have all your Samsung data scanned.

Step 4.Allow Scanning and Analyzing Data on Samsung
You’ll get a window as follow on your device after your device is detected by the program.Tap “Allow” on your device to enable the program to scan your device for deleted data.



Note:Please make sure that your phone battery is more than 20% charged and keep the connection between your phone and the computer.

Step 5.Scan Samsung for Deleted Data
Now the program will start to scan data on your phone.The scanning process will cost you only minutes.



Step 6.Recover Deleted Contacts from Samsung Galaxy S9
When the scan is completed, you are allowed to preview all data found on your phone, including contacts, SMS, photos, etc,. Preview then retrieving the data you want to restore by clicking “Recover” button under the “Contacts” file to save them on the computer.



Thursday, September 6, 2018

The official version of apple iOS 12 will be launched in September

iOS 12 is about to launch an official version. It is believed that the time will be officially launched at Apple's autumn conference. In fact, since iOS 12 Beta 8, Apple hasn't added any new features to every beta, so we can call it a quasi-official version, and in iOS 12 Beta 11, Apple hasn't added any new features, it's still improving system fluency and bug fixing.

After updating the latest version, some developers said that the previous Beta 9 beta constantly prompted you to upgrade the corner has disappeared, and the system will not have a pop-up message, for beta users, the new Beta 11 can be tried, has tended to stabilize. In addition, according to media reports 9to5Mac, Apple will officially launch the official version of iOS 12 in September 18th.

On iOS 12, improvements in fluency / APP startup speed, improved functionality, and even on support devices, iOS 12 is exactly the same as iOS 11: the iPhone 5S and iPad Mini 2 that should have dropped out of the support list are still on the iOS 12 upgrade list. Apple seems to want to tell its users through a series of delightful old-fashioned initiatives that the experience you don't get on iOS 11 will be compensated for on iOS 12.

The biggest highlight of the new iOS 12 is speed and fluency. According to official reports, iOS 12's App startup speed is 40% faster than the previous iOS 11, input and output speed is 50% faster, and camera startup speed is 70%. Compared with previous iOS 11 systems, iOS 12 is very friendly to older Apple devices, with significant improvements in speed and fluidity, which can extend the life of older iPhones. Apple has announced iOS 12-enabled hardware that can be upgraded to iOS 12 from all iPhone products after the 5s, all iPad products after the iPad Mini 2, and iPod touch (the sixth generation).

At the same time, Apple also added the following features to iOS 12: on iOS 12, mainly including the following important features: AR application enhancement; improved search based on photo recognition; added shortcuts to the SiriKit; a large number of updates with APP; increased sleep mode; added Screen Time time monitoring function; The Animoji expression has been added; the upgrade of Face Time, the new version of FaceTime has the highest support of 32 people.

Objectively speaking, iOS 12 doesn't bring much feature highlight and few features are available, but iOS 12 may be the best iOS version ever to experience: whether it's functionality or Android's Copy, it's making iOS 12 usability and practicality historically at their peak.

If iOS 11 is so radical that Apple loses itself, then a relatively stable, conservative iOS 12 may help Apple find itself in the midst of confusion.

iOS12 function update:

1.Do Not Disturb

The iOS 12 system has a sleep-free Do Not Disturb function that creates a clean and empty notification screen to help users sleep more easily at night. Secondly, Apple also released the function of group notification.

2.Screen Time

The new function on iOS12 is called screen time Screen Time. Screen time will provide users with the use of equipment in the past 24 hours or in the last 7 days. Parents can use screen time to see how their children use devices, or to limit applications, content, and control privacy settings by creating quotas.

3.AR measuring tool

Measurements can be made using mobile phones in AR scenarios, and the ARKit, a tool platform for developing AR applications, is updated to ARKit 2.0. In addition, AR also adds a multi-person interactive function, live demonstration of AR play Lego game scenes, in addition to the building blocks themselves, but also to explore the Lego world story, and even Lego villains are dynamic.

4. album search

The album has added search function. It can intelligently recognize photos and improve the accuracy and accuracy of search. Photos, for example, provide "for you" tags, select photo effects, and suggest whether you want to send a certain type of photo to someone.

5.Suggestion

You can turn your voice into a reminder to add to the lock screen.

6. marking junk phone

Includes a function that handles spam messages and calls, as described in the developer's Web page, allowing application developers to create plug-ins that allow users to report unwanted messages and calls as spam.

7. sharing precise locations

On the morning of June 19, 2018, Apple announced that iOS 12 would add a new feature: the system would automatically share accurate location data with emergency personnel when making 911 calls in the United States, which would help reduce response time.

Add seven functions:

1.App Store, iTunes Store, Books, TV app, new welcome page of Music App;

2. wallpaper for reordering.

3. remove the wallpaper from the era of iOS 10;

4. new AirPlay icon is added under lock screen status.

5. the font is thicker in the map.

6.Home application and new gradient wallpaper has been added.

7. the horizontal screen mode tells the close button to move to the right.

Support equipment:

iPhone
iPhone X, the iPhone 8, the iPhone 8 Plus, the iPhone 7, the iPhone 7 Plus, the iPhone 6s, the iPhone 6S Plus, the iPhone 6 Plus, the iPhone SE, the iPhone 5S

iPad
The 12.9-inch iPad Pro second generation, the 12.9-inch iPad Pro first generation, the 10.5-inch iPad Pro, the 9.7-inch iPad Pro, the iPad Air 2, the iPad Air, the fifth generation of the iPad, the sixth generation of the iPad, the iPad Mini 4, the iPad Mini 3, and the iPad Mini 2.

iPod
iPod touch 6


Note: The new iOS system may have an unexpected situation when upgraded, which may cause iOS devices to lose data. This does not mean that the new system of iOS has problems, and anything can happen unexpectedly. To ensure that your data is complete, you can backup your data before upgrading the system. It doesn't matter if you forget to back up the data, you can learn how to recover lost data from the iPhone / iPad / iPod in the following articles.

How to Recover Lost/Deleted Data from iPhone X/8/7/6S/6
How to Recover Data from iPhone or iTunes Backup
How to backup and restore iPhone/iPad data without using iTunes/iCloud

How to Recover iOS Device Data from iTunes/iCloud Backups

How to Recover Lost/Deleted Data from iPhone X/8/7/6S

How to Recover Lost Data from iPhone/iPad/iPod?

The perfect version of iOS 11 ----iOS 12 will be released soon

As many have speculated, the iPhone SE2, which hasn't received much exposure, didn't appear on this year's WWDC. As a result, iOS 12 has become the biggest highlight of WWDC18. Although many new features have been added, there is always the illusion that the full version of iOS 11 might be like this.

iOS 12 is doing a lot of iOS 11.

Although it brings a series of new features such as UI interface, gesture manipulation and so on, the official version of iOS 11, which is unveiled along with iPhone X, is still well received by users: carton, instability and Bug frequency, which makes iOS 11 even known as the "worst" iOS version in history.


On iOS 12, the boost in fluency / APP startup speed, the further refinement of existing functionality, and even on support devices, iOS 12 is exactly the same as iOS 11: the iPhone 5S and iPad Mini 2, which should have dropped out of the support list, are still on the iOS 12 upgrade list.

The biggest highlight of the new iOS 12 is speed and fluency. According to official reports, iOS 12's App startup speed is 40% faster than the previous iOS 11, input and output speed is 50% faster, and camera startup speed is 70%. Compared with previous iOS 11 systems, iOS 12 is very friendly to older Apple devices, with significant improvements in speed and fluidity, which can extend the life of older iPhones.

Support equipment:

iPhone:iPhone X, the iPhone 8, the iPhone 8 Plus, the iPhone 7, the iPhone 7 Plus, the iPhone 6s, the iPhone 6S Plus, the iPhone 6 Plus, the iPhone SE, the iPhone 5S

iPad:The 12.9-inch iPad Pro second generation, the 12.9-inch iPad Pro first generation, the 10.5-inch iPad Pro, the 9.7-inch iPad Pro, the iPad Air 2, the iPad Air, the fifth generation of the iPad, the sixth generation of the iPad, the iPad Mini 4, the iPad Mini 3, and the iPad Mini 2.

iPod:iPod touch 6

In terms of functionality, many of the features highlighted at the conference look like "finished" features already available on iOS 11.


First, the system performance, this improvement is particularly "care" for the old equipment, for example, the old equipment to open the camera speed will be 70% faster than before! After updating iOS 12, the speed of App will increase by 40%, and the speed of keyboard evocation will be increased by 50%. After experiencing the iOS 11 Karton and the drop-off gate, Apple seems to want to tell its users through a series of delightful old-fashioned initiatives that the experience you don't get on iOS 11 will be compensated for on iOS 12.

In addition, the upgrade to the second edition of ARKit, highlighted by Apple last year, will always give a more realistic sense of the concept: the new USDZ AR file format, improved face tracking, better rendering, and support for multi-user interaction all talk about ARKit's real push to a practical collar. Domain.

Animoji, an animated expression using the iPhone's X-ray structured light, was further refined: not only did it add four new images: koala, tiger, ghost or T. Rex, which supported the recognition of tongue-spitting movements, but it also added a new Memoji feature that allowed users to customize images and create their own Animoji.

In addition, on iOS 11.3, Apple has opened up NFC support for traffic cards, and on iOS 12, NFC will become more open: it will allow students to simulate their mobile phones as campus cards, fast access to dormitories, canteens, and libraries. And if there is no accident, future access card services will also be open to the public.

The things that don't work well / well on iOS 11, iOS 12 is all "finished," and we can even think of iOS 12 as a full version of iOS 11.

The shadow of Android can be seen everywhere.

On the one hand, efforts are being made to "fill" the holes dug by iOS 11, on the other hand, iOS 12, like iOS 11, is trying to keep pace with Android.

If you remember the Xiaomi 8 press conference a few days ago, you will be impressed with the customizable little love classmates on MIUI 10. On iOS 11, Apple finally decided to open up its Siri interface to more applications: users could also customize Siri commands to perform operations, or even perform successive actions with passwords.

On iOS 11, another point worthy of tucking is to alert the message: scattered message notifications must be cleaned up one by one. On iOS 12, Apple eventually pegged Android with the ability to group push applications into Apps, allowing users to clean up with one click. In addition, for some applications, the push can finally be set to "quiet notification" (priority), no sound or banner display, but a lot of interruption to users.

Of course, today's Android does even better with notification management, not only with notification classification, priority, but also allows users to manage the type of push messages that App delivers: microblogging, for example, allows you to turn off the system push and display private chat or comment information. IOS 12 needs further efforts in this regard.

Time slot "Do Not Disturb": iOS users can finally set up at a certain time / place like Android users, and the phone automatically enters the jam-free mode. This function has also been used by Android users for many years. In addition, features like parent mode and mobile phone usage detection have long been implemented on Android devices, and are finally available on iOS 12.

iOS12 function update:

1.Do Not Disturb
The iOS 12 system has a sleep-free Do Not Disturb function that creates a clean and empty notification screen to help users sleep more easily at night. Secondly, Apple also released the function of group notification.


2.Screen Time
The new function on iOS12 is called screen time Screen Time. Screen time will provide users with the use of equipment in the past 24 hours or in the last 7 days. Parents can use screen time to see how their children use devices, or to limit applications, content, and control privacy settings by creating quotas.


3.AR measuring tool

Measurements can be made using mobile phones in AR scenarios, and the ARKit, a tool platform for developing AR applications, is updated to ARKit 2.0. In addition, AR also adds a multi-person interactive function, live demonstration of AR play Lego game scenes, in addition to the building blocks themselves, but also to explore the Lego world story, and even Lego villains are dynamic.


4. album search

The album has added search function. It can intelligently recognize photos and improve the accuracy and accuracy of search. Photos, for example, provide "for you" tags, select photo effects, and suggest whether you want to send a certain type of photo to someone.

5.Suggestion

You can turn your voice into a reminder to add to the lock screen.

6. marking junk phone

Includes a function that handles spam messages and calls, as described in the developer's Web page, allowing application developers to create plug-ins that allow users to report unwanted messages and calls as spam.

7. sharing precise locations

On the morning of June 19, 2018, Apple announced that iOS 12 would add a new feature: the system would automatically share accurate location data with emergency personnel when making 911 calls in the United States, which would help reduce response time.

Add seven functions:

1.App Store, iTunes Store, Books, TV app, new welcome page of Music App;

2. wallpaper for reordering.

3. remove the wallpaper from the era of iOS 10;

4. new AirPlay icon is added under lock screen status.

5. the font is thicker in the map.

6.Home application and new gradient wallpaper has been added.

7. the horizontal screen mode tells the close button to move to the right.


Apple's conservatism and openness

Although iOS 12 hasn't brought us much new features, it's undeniable that iOS 12 may be the best-ever iOS version ever: its ease of use and practicality have reached historic heights, both for functional perfection and for Android's Copy.

Despite its better experience, Apple's iOS is still conservative compared to Android, which is open source. Conservatism, along with its inherent advantages, has even made it less sensitive to new features / trends in recent years, allowing iOS to catch up with Android in recent years.

But with iOS 12, it's easy to see what's happening to Apple right now: iOS is starting to open up more interfaces to third parties, like Siri, CarPlay, and so on, and learning about Android, the new, well-received features that Apple is becoming more open to today.

Note
: The new iOS system may have an unexpected situation when upgraded, which may cause iOS devices to lose data. This does not mean that the new system of iOS has problems, and anything can happen unexpectedly. To ensure that your data is complete, you can backup your data before upgrading the system. It doesn't matter if you forget to back up the data, you can learn how to recover lost data from the iPhone / iPad / iPod in the following articles.
How to Recover Lost/Deleted Data from iPhone X/8/7/6S/6
How to Recover Data from iPhone or iTunes Backup
How to backup and restore iPhone/iPad data without using iTunes/iCloud

How to Recover iOS Device Data from iTunes/iCloud Backups

How to Recover Lost/Deleted Data from iPhone X/8/7/6S

How to Recover Lost Data from iPhone/iPad/iPod?

Apple's autumn conference is about to launch iOS 12

According to media reports, Apple will officially launch the iOS 12 official version in September 18th. As the world's most watched technology company, the updating of iOS 12 also means the approaching of Apple's new fall launch.

At present, iOS 12 has already launched 10 previews and 8 beta releases, I believe that with the approaching of September 18, Apple iOS 12 GM version should soon meet you, perhaps the next beta update is GM version.

Compared with previous iOS 11 systems, iOS 12 is very friendly to older Apple devices, with significant improvements in speed and fluidity, which can extend the life of older iPhones.

Apple has announced iOS 12-enabled hardware that can be upgraded to iOS 12 from all iPhone products after the 5s, all iPad products after the iPad Mini 2, and iPod touch (the sixth generation).



The superiority of iOS 12 to iOS 11

iOS gives you a full range of optimizations and improvements, whether it's the iPhone or the iPad, which will be faster and more sensitive to use. All kinds of daily operations, such as opening the camera App and typing the text on the keyboard, are faster than ever. In addition, when you process multiple tasks simultaneously on the device, the performance improvement will be more significant. All applicable device performance benefits from these optimizations, including the iPhone 5S and the iPad Air.

There are further improvements in camera. Now, you have a new way to add your own personality style to info apps and FaceTime calls directly through the camera feature in the app. You can quickly create and share photos or videos with moving expressions, mimic my expressions, cool filters, animated text effects, fun stickers and other elements.

IOS 12 has launched a new function -- "screen time". There are so many apps, help us create a variety of wonderful, will make us unconsciously immersed in them, forget the passage of time. This feature lets you know how much time you spend in front of the screen using apps, browsing the Web, and doing things. In this way, you can arrange the time spent on iPhone/iPad reasonably.

IOS 12 has made relevant changes as well. The notification management function of iOS 12 can help you reduce the usual interference. Now you can manage all kinds of notifications in real time on the lock screen, and you can choose to have all the notifications of a particular app displayed in the notification center or closed. Siri can also provide relevant intelligent advice based on your interaction with the notification reminder. Information dialogue and notification topics will be grouped so that important content can be seen at a glance.

However, iOS 12 provides more ways to manage notifications, but sometimes you don't want to be disturbed by any reminders, messages or phone calls. In this case, you can set the no-disturbance mode to a meeting or place, and the no-disturbance mode will automatically close once the meeting is over or you leave the place.

In addition, iOS 12 has further improved in terms of photos. The new Recommendations tab shows the highlights of your photo gallery and intelligently suggests that you share photos with the people in your photos. If the receiver uses iOS 12, the system will remind them to share photos of their activities with you.

Now, Siri intelligently associates your daily habits with third-party apps, providing quick instructions when you need them. For example, if you're used to buying a cup of coffee on the way to work, Siri will understand your habit and remind you to buy coffee on the lock-in screen. You can also use voice to execute these instructions, or create your own shortcuts using the new shortcut app.

If you're a privacy conscious person, you need to understand the privacy protection iOS 12 gives you. Apple always believes that privacy is a basic human right. That's why the iOS design incorporates built-in encryption, device-side intelligence, and other tools from the start to allow you to control what you want to share. In iOS 12, we further intensified our privacy protection efforts. Safari now prevents sharing buttons and comment components from tracking you without your permission. In addition, Safari will prevent advertisers from collecting feature information about your device, making it impossible for them to identify your device or to place redirected ads on the Web for you.

After reading these, can you wait to experience iOS 12? Don't worry, as Apple's fall launch approaches, you'll soon be able to upgrade your iOS device to iOS 12.

Note: If you encounter data loss during upgrade / downgrade, don't worry, because the missing data still exists on your iOS device, but you can't find it immediately. You need some tools to recover the data. For more information, please visit the following
data recovery methods:

How to Recover Lost/Deleted Data from iPhone X/8/7/6S/6
How to Recover Data from iPhone or iTunes Backup
How to backup and restore iPhone/iPad data without using iTunes/iCloud

How to Recover iOS Device Data from iTunes/iCloud Backups

How to Recover Lost/Deleted Data from iPhone X/8/7/6S
How to Recover Lost Data from iPhone/iPad/iPod?


How to Recover Lost Data from iPhone XS

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