Flashing iOS on the iPhone X (Global – iPhone10,3) is one of the most effective ways to fix serious software issues such as bootloop, stuck on Apple logo, recovery mode errors, system crashes, or failed updates. If your device is running slow, freezing frequently, or experiencing update problems, performing a full restore using IPSW firmware can bring it back to factory condition.

In this complete guide, you will learn:

• How to flash iOS using IPSW
• How to restore via iTunes or Finder
• How to reset iPhone X properly
• Important precautions before flashing
• Frequently Asked Questions (FAQ)

This tutorial is safe and suitable for beginners, as long as you follow each step carefully.

About iPhone X Global (iPhone10,3)

The Global version of iPhone X has the following details:

• Model Identifier: iPhone10,3
• Model Number: A1865
• Chipset: Apple A11 Bionic
• Network: GSM + CDMA

Before flashing, make sure your device matches this model. Using incorrect firmware can cause restore failure.

What is Flashing iOS?

Flashing iOS means reinstalling the entire operating system using a firmware file called IPSW. This process:

• Erases all data
• Installs fresh iOS
• Fixes corrupted system files
• Removes passcode (via restore)
• Solves major software issues

Flashing is different from OTA update because it performs a clean system reinstall instead of a small patch update.

When Should You Flash iPhone X?

You should consider flashing if your iPhone X:

• Is stuck on Apple logo
• Cannot exit recovery mode
• Shows white or black screen
• Has failed update
• Keeps restarting (bootloop)
• Has serious lag or bugs
• Needs factory reset for resale

Important Things Before Flashing

Before starting the process:

1. Backup your data (iCloud or computer).
2. Ensure battery is above 50%.
3. Use original or high-quality USB cable.
4. Download correct IPSW for iPhone10,3.
5. Install latest version of iTunes (Windows) or use Finder (Mac).

Remember: Flashing will erase everything on the device.

Method 1: Flash iPhone X Using iTunes (Windows)

You will need:

• Windows PC
• Latest iTunes installed
• IPSW firmware file
• USB cable

Step 1: Install and Open iTunes

Download and install the latest version of . Open the program before connecting your device.

Step 2: Enter Recovery Mode

Follow this exact button sequence:

1. Press and release Volume Up
2. Press and release Volume Down
3. Press and hold Side button
4. Keep holding until recovery screen appears

You will see a cable pointing to computer icon.

Step 3: Connect to Computer

Plug your iPhone into the PC. iTunes will detect a device in recovery mode.

Step 4: Restore Using IPSW

• Hold SHIFT key
• Click “Restore iPhone”
• Select downloaded IPSW file
• Confirm restore

Wait until the flashing process completes. Do not disconnect the device.

After completion, the iPhone will reboot to the setup screen.

Method 2: Flash iPhone X Using Finder (Mac)

On macOS Catalina or newer:

1. Open
2. Connect your iPhone
3. Enter Recovery Mode
4. Hold Option key
5. Click “Restore iPhone”
6. Select IPSW file
7. Confirm

Wait for the restore process to finish.

Method 3: Flash Using 3uTools (Alternative Tool)

If you prefer an advanced interface, you can use on Windows.

Steps:

1. Install 3uTools
2. Connect iPhone
3. Go to “Flash & JB”
4. Choose signed firmware
5. Select “Quick Flash”
6. Click Flash

This tool automatically detects available firmware versions.

How to Reset iPhone X Global

If you don’t need a full firmware reinstall and only want to reset the device, follow the methods below.

Soft Reset (Force Restart)

This is useful if the phone freezes:

1. Press Volume Up
2. Press Volume Down
3. Hold Side button until Apple logo appears

No data will be erased.

Factory Reset via Settings

If the phone is accessible:

1. Go to Settings
2. Tap General
3. Scroll down and select Transfer or Reset iPhone
4. Tap Erase All Content and Settings
5. Confirm

This will remove all data and restore default settings.

Reset via Recovery Mode (Without Password)

If you forgot passcode:

1. Put device into Recovery Mode
2. Connect to iTunes or Finder
3. Click Restore

This will erase all data and remove passcode.

Common Flashing Errors & Solutions

Error 3194

Cause:

• Firmware is unsigned
• Modified hosts file

Solution:

• Check signing status
• Restore latest signed version

Error 4013 or 4014

Cause:

• USB cable issue
• Hardware problem

Solution:

• Try different cable
• Change USB port
• Restart PC

Stuck in Recovery Mode

Solution:

• Perform full restore
• Use exit recovery tool (if minor issue)

Flashing vs Reset – What’s the Difference?

If the system is heavily corrupted, flashing is recommended.

FAQ

1. Is flashing iPhone X safe?

Yes, if you use official IPSW and follow correct procedure. Always backup your data first.

2. Will flashing remove iCloud lock?

No. Flashing does not remove iCloud activation lock.

3. Can I downgrade iOS?

Only if Apple is still signing the older version.

4. How long does flashing take?

Usually 10–20 minutes depending on system speed.

5. Does flashing improve performance?

Yes, if the problem is caused by corrupted system files.

6. Do I need internet during flashing?

Internet is required for verification during restore.

Final Conclusion

Flashing iOS on the iPhone X Global (iPhone10,3) is a powerful solution for fixing major software problems. Whether your device is stuck, slow, or failed to update, performing a restore using IPSW can bring it back to optimal performance.

If the issue is minor, a factory reset might be enough. But for serious system errors, full flashing via iTunes, Finder, or 3uTools is the most reliable method.

Always double-check firmware compatibility and signing status before proceeding.