REWA Tech

Étiquette : bloqué sur le logo de la pomme

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Outdated iTunes Version

One of the primary causes of iPhone Error 4013 is an outdated version of iTunes.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.
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Remarque : Please note that this tutorial utilizes an iPhone X for demonstration purposes, although the method can be applied to most iPhone models.
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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.

Remontage : 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 Académie REWA.
29 juin 2021
Comment réparer l'iPhone 12 Pro bloqué sur le logo Apple

Aujourd'hui, nous allons partager un cas de réparation d'un iPhone 12 Pro qui reste bloqué sur le logo Apple. Le téléphone pouvait être allumé avant, mais il est resté bloqué sur le logo Apple pendant le démarrage après la charge.

Déconnectez les autres câbles flexibles, à l'exception du câble flexible d'alimentation. Branchez l'écran et le câble d'alimentation. Le téléphone reste bloqué sur le logo Apple. Nous pouvons donc exclure la possibilité que d'autres câbles flexibles soient défectueux. Il peut être confirmé que le téléphone reste bloqué sur le logo Apple à cause d'un défaut de la carte mère.

Le courant d'amorçage s'arrête à environ 240 mA.

Comme le courant s'arrête à environ 240 mA et que le téléphone reste figé sur le logo Apple après la charge, nous pouvons réduire la plage de défaillance au circuit de charge USB. En effet, le circuit intégré USB se trouve à l'extrémité avant du circuit de charge USB. Ensuite, nous essayons de remplacer le circuit intégré USB.

Placer la carte mère sur le plateau de 200 °C Plate-forme de chauffage chauffer. Chauffez la carte mère à l'aide d'un pistolet à air chaud vertical à 330 °C. Faites levier sur la carte logique avec une barre de levier pendant le chauffage. Lorsque la carte logique se détache, retirez-la à l'aide d'une pince à épiler.

Fixez la carte logique au détenteur. Appliquer un peu de pâte de flux sur le circuit intégré USB. Chauffer le circuit intégré USB avec un pistolet à air chaud à 340 °C et un flux d'air de 3. Pousser le circuit intégré USB avec une pince à épiler pendant le chauffage. Retirer le circuit intégré USB s'il se détache.

Enlever l'étain sur le tampon de collage avec Fer à souder à 365 °C et le pistolet à air chaud à 340 °C. Nettoyer à nouveau l'étain sur la plage de collage à l'aide d'une mèche à souder.

Appliquer un peu de pâte de flux sur le plot de collage. Aligner le nouveau CI USB. Chauffer pour souder le CI USB avec un pistolet à air chaud à 340 °C. Enlever l'étain sur la plage de connexion avec un fer à souder à 365 °C et une mèche de soudure. Nettoyez l'étain sur le bonding pad de la carte de signal avec la même méthode. Nettoyez le bonding pad avec du PCB Cleaner.

Nous installons ensuite la carte mère sur le Dispositif d'essai. Branchez le câble d'alimentation et l'écran. Déclenchez le démarrage à l'aide d'une pince à épiler. Le téléphone peut être allumé.

Il faut ensuite rebouter le tableau de signalisation. Fixez le tableau de signalisation à la plate-forme de rebouclage. Mettez le pochoir de rebouclage en place. Appliquez uniformément une couche de pâte à braser.

Essuyez l'excès de pâte à braser et retirez le pochoir de rebouclage.

Placer la carte signal sur la plate-forme chauffante à 160 °C pour la chauffer. Une fois que les billes de soudure sont formées, refroidissez la carte de signal. Appliquez un peu de pâte de flux sur la plage de collage. Alignez la carte logique sur la carte de signalisation.

Continuez à chauffer pour recombiner la carte mère. Retirez la carte mère après l'avoir chauffée pendant environ 2 minutes. Connectez la carte mère à l'aide d'un câble d'alimentation une fois qu'elle a refroidi. Déclenchez le démarrage à l'aide d'une pince à épiler. Le saut de courant de démarrage est normal.

Nous installons ensuite la carte mère. Le téléphone peut être allumé. Le numéro IMEI est également visible. Le problème a été résolu.

Regardez la vidéo ci-dessous pour voir comment nous réparons l'iPhone 12 Pro bloqué sur le logo Apple.

juin 2, 2021
A Rare Case Of iPhone X Stuck On Apple Logo（iTunes Error 4013）

iPhone gets stuck on the Apple logo, which usually means that there is a problem with the operating system or hardware of the phone. Check out our video today and we will show you how to diagnose and fix the problem step by step.

juin 2, 2021
How to Fix an iPhone XR Stuck on Apple Logo and Keeps Restarting: A Step-by-Step Guide
In this guide, we’ll walk you through how to repair an iPhone XR stuck on Apple logo and keeps restarting—a common issue that occurs after the phone has been dropped or charged. If flashing the phone hasn’t worked, and it still keeps rebooting, the issue likely lies with the motherboard or the USB IC. Follow these step-by-step instructions to resolve the problem and get the phone working again.

How to Repair an iPhone XR Stuck on the Apple Logo and Restarting

If your iPhone XR stuck on Apple logo and keeps restarting after being dropped or charged, there’s likely an issue with the phone’s motherboard. Here’s how to troubleshoot and repair it:

Étape 1 : Diagnostic initial

Connect the Power Cable: First, connect the power cable to the motherboard. Check for any signs of electricity leakage or large current. In this case, everything appears normal

Flash the Phone: Connect the iPhone XR to a computer and try flashing the device to see if there’s system damage. Use a Restore-Easy Cable to enter recovery mode and begin the flashing process.

The phone can be flashed successfully, but it still won’t turn on and continues restarting. This indicates that the issue is hardware-related, specifically the motherboard.

Step 2: Motherboard Inspection

Remove the Motherboard: Disconnect the flex cable, remove the foam and rubber, and attach the motherboard to a holder.

Protect the Connectors: Use high-temperature tape to protect the connector before continuing.

Remove Shield Cover: Remove the shielding cover with vertical Hot Air Gun at 380℃.

Check Inductances Around Power IC: Use a Pistolet à air chaud at 280°C to inspect the inductances around the power IC for loose connections. If the inductances are loose, it indicates pseudo-soldering. However, in this case, the inductances are solid.

Step 3: USB IC Replacement

Since the phone restarts after charging, the USB IC (which is part of the charging circuit) is the most likely culprit. Here’s how to replace it:

Remove Thermal Grease: Use a sculpture knife to carefully remove any thermal grease.

Prepare the USB IC Area: Protect the CPU with a shielding cover and secure it with high-temperature tape. Heat the black adhesive around the USB IC using a Hot Air Gun at 280°C.

Remove the USB IC:
- Pry up the USB IC using a Hot Air Gun at 380°C.
- Apply paste flux, then remove the tin on the bonding pad with a fer à souder set to 365°C.
Clean the Area: Use solder wick soaked in rosin and heat it with the Hot Air Gun at 380°C to remove any excess tin. Clean the area with PCB Cleaner once cooled.

Installer le nouveau circuit intégré USB:
- Apply paste flux and place the new USB IC in position.
- Solder it in place using the Hot Air Gun at 380°C.
- Clean the area with PCB Cleaner once the motherboard cools down.
Step 4: Testing and Reassembly

Test the Motherboard: Reconnect the motherboard to the power cable and short the ground of pin 10 on J4300 to trigger the boot-up. Check for normal boot current.

Reassemble the Phone: Reinstall the motherboard, connect the display and battery, and power on the phone. If everything works as expected, the phone should turn on normally.

Conclusion :

The issue with this iPhone XR was traced back to a faulty USB IC, which is a common failure point after the phone has been dropped or charged. While the phone could be flashed, it still kept restarting due to hardware failure. Replacing the USB IC resolved the issue, allowing the phone to turn on normally and function as expected. This guide highlights the importance of diagnosing hardware issues in cases where flashing the system doesn’t fix the problem.
14 mai 2021