ULtData(iPhone Data Recovery)

How to Use UltData

iPhone crash randomly after upgrade or jailbreak? iPhone gets stuck at DFU mode, apple log, connect to iTunes screen during an iOS update? These will result to system issues and your iPhone cannot work properly. Fortunately UltData can help you fix these iOS system issues without erasing data. So you can repair the iPhone operating system and then continue with data recovery.

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How to Use UltData to Repair the Operating System

What the greatest thing is that UltData has added a new functionality of “Repair Operating System”. The powerful function can repair iOS, which is capable of fixing various stuck issues such as gets stuck at Apple logo, Recovery mode, DFU mode, black out, blue screen of death, boot loop. Moreover, the process of repairing won’t cause any data loss.


The following is the instruction on how to repair operating system for iPhone.

Step 1: Select “Repair Operating System”

Firstly, please connect your iPhone to PC via USB cable and select "Repair Operating System" on the main interface.

Then, click “Repair Now” to start repairing.

select repair operating system to repair now

Tips:If the program cannot detect your iPhone, please put iPhone into Recovery Mode manually.

put iphone into recovery mode manually

If the program still cannot recognize the device, please put the device into DFU mode.

put iphone into dfu mode

Step 2: Download Firmware Package

Download the Firmware Package Online is the way we recommend you to choose. Click “Browse” to choose a path to save firmware package on your computer, and then click “Download” to proceed.

download firmware package

the process of downloading firmware package


You can notice the lower place of the interface.

1: If you failed to download the firmware online, you can click Copy button to download through browser.

2: If you have already had the firmware package, you can click Select button to select your firmware on your computer to get started with repair.

import firmware package

Step 3: Repair the Operating System

The program will start repairing the operating system automatically after downloading firmware package. You’d better not do any other operations during the process of repairing.

verify the firmware to start repairing

The repairing will be completed within 10 minutes, please wait patiently.

start repairing automatically


1: When repairing operating failed, you’re highly suggested to click Repair System Again button to repair the operating system for 3-5 times.

2: If your iPhone is in worse circumstance, to increase the success rate of repairing, you can also try Advanced Mode to repair the operating system. Please note: this process will cause data loss. Back up your data before starting this repair mode if you can.

use advanced mode to repair operating system

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