UltData(iPhone Data Recovery for Mac)

Guide for Repairing the Operating System on Mac

What’s the most worth mentioning is that UltData(iPhone Data Recovery for Mac) has added a new functionality of “Repair Operating system”, which can fix many stuck issues like stuck at recovery mode, apples logo, boot loop, DFU mode, black out, blue screen of death, etc. More importantly, you should never worry about any data loss.


Following are the specific operations to repair operating system on Mac.

Step 1: Select “Repair Operating System”

In the first step, connect your iPhone to Mac with USB cable. Then, select "Repair Operating System" on the main interface. After that, 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 to get it detected.
put iphone into recovery mode manually

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

put iphone into dfu mode

Step 2: Download Firmware Package

The default way is Download the Firmware Package Online. Please click Browse button to select a path to save firmware package on your computer, and then click Download button to download the firmware.

download firmware package the process of downloading firmware package

1: If you failed to download the firmware online, here is one way you can download the firmware by clicking Copy button to download through browser.

2: You can also choose to import your firmware manually by click Select button at the lower place of the interface.

import firmware package

Step 3: Repair the Operating System

Once finished downloading firmware, the program will start repairing the operating system automatically. Please note: Don’t do any other operations until the repair finished.

check the firmware to start repairing start repairing automatically repair system is done

It will takes about 10 minutes to complete the repairing, wait patiently please.


1: If you failed to repair the operating system, we recommend you to click Repair System Again button to repair the operating system for more times.

2: If the regular repair mode cannot fix the issue, you can also try Advanced Mode to increase the repairing success rate. And you’re highly suggested to back up your data before starting this repair mode if you can.

use advanced mode to repair operating system
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