Instructions for updating iPhone via 3uTools without data loss:

Step 1: Download and install 3uTools program

Key points

Backup actions come first.
The correct update mode is used.
The device is checked after flashing.

What to prepare

Windows computer and 3uTools.
Original or quality cable.
Battery charge and stable internet.

Workflow

1Connect the device.
2Choose firmware and data-preserving mode.
3Check startup after update.

Material navigation

Step 1: Download and install 3uTools program

Detailed guide

The main page content is structured below into practical blocks.

Step 1: Download and install 3uTools program

Go to the official website of 3uTools and download the program to your computer. - Once the download is complete, run the installation file and follow the instructions to install the program.
Step 2: Connect iPhone to Computer
Use the original USB cable to connect your iPhone to your computer. - Unlock your iPhone if required and allow access to your computer. Step 3: Open 3uTools and detect your device
Launch the 3uTools program on your computer. - The connected device will be automatically detected by 3uTools and its information will be displayed on the screen.
Step 4: Prepare for the update
In the left panel of the program, select the “Functions” section and then click on “Firmware Update”. - The program will automatically download the latest firmware for your iPhone model.
Step 5: Select Update Mode
In the window that appears, select the “Save data” mode (or “Flash JB save data” if you have activation bypass files installed). - This mode allows you to update the firmware without deleting your personal data and activation bypass files. Step 6: Start the update
After selecting the update mode, click on the "Update" button. - 3uTools will begin the firmware update process on your iPhone.
Be patient and do not disconnect your device from your computer during this process.
Step 7: Complete the update
Once the update is complete, 3uTools will notify you that the new firmware has been successfully installed. - Now your iPhone will be updated to the latest version, while all your personal data and activation bypass files will remain unchanged. Please note: It is important to keep backup copies of your data before updating the firmware, so that in case of unforeseen situations you will be able to restore the information. Please remember that updating firmware always involves some risk, so follow the instructions carefully and at your own risk. If you have any questions or problems, please contact the professionals or 3uTools support team for help.

Step 1: Download and install 3uTools program

Go to the official website of 3uTools and download the program to your computer. - Once the download is complete, run the installation file and follow the instructions to install the program.
Step 2: Connect iPhone to Computer
Use the original USB cable to connect your iPhone to your computer. - Unlock your iPhone if required and allow access to your computer. Step 3: Open 3uTools and detect your device
Launch the 3uTools program on your computer. - The connected device will be automatically detected by 3uTools and its information will be displayed on the screen.
Step 4: Prepare for the update
In the left panel of the program, select the “Functions” section and then click on “Firmware Update”. - The program will automatically download the latest firmware for your iPhone model.
Step 5: Select Update Mode
In the window that appears, select the “Save data” mode (or “Flash JB save data” if you have activation bypass files installed). - This mode allows you to update the firmware without deleting your personal data and activation bypass files. Step 6: Start the update
After selecting the update mode, click on the "Update" button. - 3uTools will begin the firmware update process on your iPhone.
Be patient and do not disconnect your device from your computer during this process.
Step 7: Complete the update
Once the update is complete, 3uTools will notify you that the new firmware has been successfully installed. - Now your iPhone will be updated to the latest version, while all your personal data and activation bypass files will remain unchanged. Please note: It is important to keep backup copies of your data before updating the firmware, so that in case of unforeseen situations you will be able to restore the information. Please remember that updating firmware always involves some risk, so follow the instructions carefully and at your own risk. If you have any questions or problems, please contact the professionals or 3uTools support team for help.

Before starting, the specialist checks the model, device status and risks. If the method is not suitable, we suggest a safer alternative.