What if the address book is gone after the mobile phone is upgraded?

1. What should I do if my contact is lost when my mobile phone system is updated?

If the phone address book is lost and not backed up, it can't be recovered.

Under normal circumstances, upgrading the mobile phone will not cause data loss, but for the sake of safety, we suggest that users back up the important data of the mobile phone before upgrading to avoid loss. If there is no backup, you can only add it again.

Backup method of mobile phone address book: 1. Enter the Android phone settings, then select "Account and Synchronization", then enter the account and synchronization interface, and then we select "Add Account", as shown in the following figure: 2. Generally, a Google account has been created in the first use of Android phones. If you forget the account password, you can create a new one (the mobile phone needs to be online), and finally choose an account for backup, and synchronize the address book and other information to the online account.

2. Why is there no address book after upgrading the mobile phone system?

Address book recovery method after Apple mobile phone system upgrade

1. If you upgrade through ota on your mobile phone, or click the itunes upgrade button directly on the mobile phone that has not escaped from prison, then the mobile phone doesn't know the data, and the phone book still exists.

2. If you click the Restore button to update your phone, the data will be completely erased. At this time, if you didn't back up the phone data before, you can't retrieve the phone book. If you have made a backup through itunes or icloud before, you can click Restore iphone (as shown in the figure, the phone book is included in the data) to restore the data when you activate your phone again, or connect iTunes, and iTunes will automatically pop up a button to ask if you need to restore the backup.

3. After my Huawei mobile phone is upgraded, there is no name in the contact address book. How can I restore them?

1. Download the mobile phone data recovery wizard in the application market inside the mobile phone.

2. Download and install it on your mobile phone, and then open this APP.

3. Before using this software, the mobile phone must be rooted. After entering the software, you will be prompted to get root permission. At this point, you just need to click Allow.

4. After setting root permissions, select "Contact Restore".

5. After selection, a prompt window will pop up, and then select "Execute".

6. After clicking "Execute", you can now see the progress interface of software recovery on your mobile phone, just wait for about one minute.

7. After the software search, you can now see that the mobile phone number was deleted before. Select the mobile phone number to be restored, click the box behind it, and then click the "Restore" button below.

8. After the recovery, there will be a prompt of successful recovery. The previously deleted address book can be restored!

4. Can the phone number be restored after upgrading the mobile phone card?

Have you turned on the cloud data? Now many mobile phones have this function. If it is, just log in to the cloud and download the address book.

If it is not turned on, you can also try Master Tu's mobile phone data recovery software.

Do the root operation on the mobile phone first (the root method can be found on the Internet), and then download a data recovery software of Master Tu's mobile phone on the computer. After the installation is completed, connect the mobile phone and the computer with the data cable, then run the recovery software on the computer, select the address book short message in the interface, and follow the interface prompts step by step to see if you can restore the address book you need.

Download, install and scan for free, the address book supports preview, you can preview, and the instructions can be restored. Then pay for it ~

It is easy to write data in the mobile phone, so try to recover it as soon as possible, otherwise the data will be overwritten. I hope I can help.