How to Fix iPhone Stuck On Apple Logo/iTunes Error 4013

It can be extremely frustrating to find your iPhone stuck on apple logo or iTunes Error 4013. In most cases, this is not a serious issue and a software update can resolve the issue. However, if the software update does not resolve the issue, it may be a hardware issue that requires a more thorough diagnosis and repair.

iPhone Error 4013: Possible Causes

iPhone Error 4013 can occur due to various factors, encompassing both software and hardware components, which contribute to the occurrence of this perplexing error.

Outdated iTunes Version

One of the primary causes of iPhone Error 4013 is an outdated version of iTunes. Since iTunes is crucial for both restoring and updating the device, it is imperative to keep it up to date. A simple and free software update can often resolve this issue, ensuring smooth communication between the iPhone and the computer.

Software Glitches

Random firmware crashes can sometimes lead to iPhone Error 4013. Performing a force restart or hard reset can help overcome these software glitches. By holding down the appropriate buttons, you can initiate a restart that may rectify the error and restore normal functionality.

Hardware Complications

While software issues are common culprits, hardware problems can also trigger iPhone Error 4013. In some cases, sweat or other forms of liquid entering the earpiece can cause a boot loop and lead to this error. Additionally, faulty USB cables, damaged USB ports, or third-party security software can contribute to this frustrating issue.

This blog post will exclusively address hardware problems that can lead to this issue.

Note: Please note that this tutorial utilizes an iPhone X for demonstration purposes, although the method can be applied to most iPhone models.

Cosmetic Inspection of the Motherboard

Before diving into any troubleshooting, it’s essential to ensure the motherboard is in optimal condition. Check for any deformities or water damage that might hinder the repair process.

Identifying the Problem

Let’s proceed with the motherboard installation and test it by pressing the power button. However, the phone automatically enters recovery mode, indicating a possible restore failure with the motherboard. As a result, the phone is unable to boot into the system normally.

Restoring the Phone

To begin, connect your iPhone X to a computer and initiate the restoration process using 3U Tools. A successful restoration indicates the motherboard is functioning correctly, and your phone can be activated normally.

Diagnosing Further Issues

Successful Restoration

If the phone can be restored successfully and activated, it’s an indication that the motherboard is functioning properly. The issue likely lies elsewhere.

Checking Baseband Info

Navigate to Settings>General>About to verify the baseband information, reinforcing the motherboard’s health.

Pinpointing the Issue

Adding Flex Cables: To narrow down the problem, reattach the earpiece speaker and sensor flex cable along with the front camera flex cable, and attempt to turn on the phone.

Stuck on Apple Logo: If the phone gets stuck on the Apple logo and restarts, it suggests an issue with the earpiece speaker and sensor flex cable or the front camera flex cable.

Isolating the Problem

Disconnecting the Earpiece Speaker and Sensor Flex Cable: Remove the earpiece speaker and sensor flex cable, then try to power on the phone. If it turns on normally, the issue is indeed related to these components.

Fixing the Flood Illuminator Module

Microscopic Examination: Inspect the Flood illuminator module and identify any mold or corrosion.

Repairing with High-Temperature Tape: Fix the earpiece speaker and sensor flex cable using high-temperature tape. Heat the affected area with a Hot Air Gun at 320℃ with an air flow of 35. Remove the damaged Flood illuminator module.

Corroded Bonding Pad: If the bonding pad on the Flood illuminator module is severely corroded, apply paste flux, clean with a soldering iron at 360℃, and reapply medium-temp solder paste. Clean with PCB Cleaner afterward.

Reassembly: Reassemble the Flood illuminator module, applying paste flux and soldering it in place with a Hot Air Gun at 320℃.

Wait for 2 Minutes: Allow the repaired components to settle for two minutes.

Testing and Restoring

Reconnection: Reinstall the earpiece speaker and sensor flex cable, connect the battery, and power on the phone.

Restoring with Components Connected: Since the flex cables were not connected during the previous restoration, restore the iPhone X with both cables connected to ensure Face ID functionality.

Final Verification

Entering DFU Mode: Place the phone in DFU mode and connect it to the computer.

Restoration: Use 3U Tools or similar software to restore the phone. If it completes successfully, and the phone boots into the system and allows for Face ID setup, the issue has been resolved.

Video Guide to Fix iphone stuck on apple logo

Conclusion

In this comprehensive guide, we have walked through the troubleshooting and repair process for an iPhone X stuck on the Apple logo with iTunes Error 4013. By methodically evaluating each component, from the motherboard to the earpiece speaker and sensor flex cable, we’ve successfully identified and fixed the issue, allowing the phone to function normally once again. For more in-depth repair knowledge, consider visiting REWA Academy.