Fix iTunes Error 4013 on iPhone 7/7 Plus, Iphone Repair Auckland

Fix iTunes Error 4013 on iPhone 7/7 Plus

Are you ever trapped into the situation that iTunes Error 4013 on iPhone 7/7 Plus? Actually, it is one of the most common problems for iPhone users. Also, we have sort out and released all the iTunes error codes of iPhone 6/ 6 Plus, as well as all the meaning of iPhone error codes. iTunes Error 4013 of iPhone 7/7 Plus is usually caused by pseudo soldering or damage of CPU. The problem might also be related to power supply of baseband PMU or NAND flash. Since CPU repair is quite difficult, to start with we can check the power supply of baseband PMU and NAND flash. Let’s check the details.

Malfunction Display
First, press power button to power on, the phone gets stuck with iTunes Recovery Mode and has no access to the system. Next, connect it with computer and restore via iTunes, error 4013 appears during the restoring process. The phone restarts afterward.

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Malfunction Analysis
iTunes Error 4013 of iPhone 7/7 Plus is usually caused by pseudo soldering or damage of CPU. The problem might also be related to power supply of baseband PMU or NAND flash. Since CPU repair is quite difficult, to start with we can check power supply of baseband PMU and NAND flash.

Connect battery connector with Power Supplier, and press power button on the Power Supplier. The system will then detect power button press. The run voltage measurement of baseband PMU test points C5623 and C5631, the measured value of C5623 and C5631 are normal. Judging by this, power supply of baseband PMU is normal.

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Malfunction Repair
Let’s move to the power supply of NAND Flash, let’s remove black adhesive around NAND Flash with Hot Air Gun.

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Then continue to measure voltage of NAND Flash test points C1701, C1721 and C1704. Judging by the measured value, power supply of NAND Flash is also normal.

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Once done, wait for the logic board to cool for 5 minutes and clean thoroughly with PCB Cleaner afterward.

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Assemble and Test
Till now, the whole repair process is fully finished, let’s get the logic board and display assembly installed. Connect the battery and press power button to power on, the phone gets stuck with iTunes Recovery Mode. We need to connect it with computer and restore via iTunes. The phone can be restored normally.

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Once completed, the phone restarts automatically, fault cleared.
(Warm tips: get the phone full assembled after confirmation of fault clearance.)

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iPhone 7 Plus Error 4013 fixed perfectly. Mobile Phone Solution Auckland we repair all
kind iphone related problem.
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