Troubleshooting notes from REWA Tech focused on fault finding, board issues, and the symptoms shops see every day.
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Notas de diagnóstico de REWA Tech centradas en la localización de fallos, problemas de placa y los síntomas que los talleres ven cada día.
15 de junio de 2022
A no-boot issue in an iPhone 12 Pro Max is a challenge for repair technicians, especially when caused by missing CPU pads. This guide explains how to diagnose, repair, and restore functionality to the device by skillfully repairing the CPU pads through wire jumping and other intricate methods. Device Details Model: iPhone 12 Pro Max […]
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13 de junio de 2022
A severely drop-damaged iPhone 12 Pro can seem beyond repair, especially when both the screen and back cover are shattered, the camera module is damaged, and worst of all, the motherboard is separated. However, for those who want to preserve their data, a motherboard chip swap is a viable solution. In this guide, we’ll walk […]
10 de junio de 2022
Purchasing a secondhand iPhone 12 Pro Max can be a great deal—until you encounter issues like the phone not booting. A black screen with no response, even after charging, can indicate underlying motherboard problems. This guide will walk you through the troubleshooting process and repair steps to get your iPhone working again. Model: iPhone 12 […]
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7 de junio de 2022
Is your iPhone XR keeps rebooting, especially when playing games? You’re not alone. This common issue often stems from overheating at the chip level, causing the device to trigger Apple panic codes and enter a reboot loop. In this tutorial, we’ll walk you through a professional-level solution: chip-level board repair involving CPU, NAND, EEPROM, and […]
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5 de junio de 2022
Have you encountered the dreaded “iPhone needs to cool down before you can use it” message on your iPhone 12 Pro? Overheating can cause your phone to become unstable, slow, or even shut down completely. This is a common problem faced by both technicians and phone users alike—but what causes it, and how can you […]
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5 de junio de 2022
Water damage is one of the most common and frustrating issues faced by iPhone users—especially when the phone won’t power on. In this detailed repair guide, we’ll show you how to diagnose and fix an iPhone 12 Pro water damage and remains unresponsive, even after 20 days. You’ll learn how to disassemble the device, locate […]
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2 de junio de 2022
When an iPhone 12 experiences a severe drop, it’s not just the screen or back glass that suffers—internal logic board components can also sustain serious damage. If your iPhone 12 won’t boot and only shows a fixed current of around 70mA on a DC power supply, this guide details a real-world board-level repair case. We’ll […]
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31 de mayo de 2022
Is your iPhone X constantly crashing whenever you open apps—even after a restore? You’re not alone. This issue is often linked to a deeper hardware fault, especially if you’re seeing iTunes restore error 1100. While software problems are a common culprit, in this case, the cause is more likely poor CPU soldering on the motherboard. […]
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29 de mayo de 2022
Have you experienced boot failure after dropping the iPhone 12 Pro? Drop damage is one of the most common causes of boot failure in smartphones. In this repair guide, we’ll walk you through the complete process of reviving a severely damaged iPhone 12 Pro that won’t boot due to a fractured double-layer motherboard. Moreover, we’ll […]
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28 de mayo de 2022
If your iPhone 12 Pro Max won’t turn on, even though it hasn’t been dropped or exposed to water, you’re not alone. This issue can occur unexpectedly. In this guide, we’ll explore a real repair case involving an iPhone 12 Pro Max that suddenly blacked out during normal use. Using professional tools like a DC […]
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25 de mayo de 2022
A car crash severely damaged this iPhone 12, leaving it with cracked back glass, internal logic board trauma, and no power. The client urgently needed to retrieve the locked data. In this iPhone 12 no-boot repair guide, you’ll learn advanced diagnostic and microsoldering techniques to restore functionality and recover essential data. Whether you’re a technician […]
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10 de enero de 2022
When your iPhone XR won’t turn on, it can be frustrating — especially when there’s no visible damage. In this repair case, we’ll show you how a short circuit near the audio amplifier IC caused the iPhone XR to draw excessive current and fail to boot. Using professional tools like a DC power supply, rosin, […]
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