We get a iPhone 6 with the fault like this: sometimes it can enter into IOS, but reboots automatically all the time. Customer said: it was dropped. Occasionally, it reboots after getting into IOS for a few minutes. It reports unknown error (9) when rooting.
How to fix iPhone 6 error (9) when rooting? The owner noticed that it often reboots automatically after entering into iOS, and when it is rooting, the unknown error (9) reported on the iPhone 6. Let's see what happened?
I think iPhones is fixed, but when I get into IOS to test, the screen is blurred sometimes. Check display circuit and I find that display power supply PP5V7_LCM_AVDDH near display screen FPC socket is abnormal. PP5V7_LCM_AVDDH is output by chip U1501, as shown in the picture.
At U1501’s peripheral capacitor C1569, I measure its output voltage. The voltage is normal. The location of C1569 on motherboard is shown in the picture.
I do not find any voltage at C2071. U 1501 outputs PP5V7_LCM_AVDDH and transmits it to display socket passing by FL2037, as shown in the picture.
The location of C2071 on motherboard is shown in the picture.
Measure inductor FL2037 and it is workable. The location of FL2037 on motherboard is shown in the picture.
Thus I can be sure that motherboard is disconnected somewhere. Jump a wire to connect the disconnected place, as shown in the following pictures.
After jumping the wire, I turn iPhone on and get IOS normally. Trouble is removed.
This is the complete repair for iPhone 6 error (9), more cell phone repair skills read at www.vipfixphone.com
How to fix iPhone 6 error (9) when rooting? The owner noticed that it often reboots automatically after entering into iOS, and when it is rooting, the unknown error (9) reported on the iPhone 6. Let's see what happened?
I think iPhones is fixed, but when I get into IOS to test, the screen is blurred sometimes. Check display circuit and I find that display power supply PP5V7_LCM_AVDDH near display screen FPC socket is abnormal. PP5V7_LCM_AVDDH is output by chip U1501, as shown in the picture.
At U1501’s peripheral capacitor C1569, I measure its output voltage. The voltage is normal. The location of C1569 on motherboard is shown in the picture.
I do not find any voltage at C2071. U 1501 outputs PP5V7_LCM_AVDDH and transmits it to display socket passing by FL2037, as shown in the picture.
The location of C2071 on motherboard is shown in the picture.
Measure inductor FL2037 and it is workable. The location of FL2037 on motherboard is shown in the picture.
Thus I can be sure that motherboard is disconnected somewhere. Jump a wire to connect the disconnected place, as shown in the following pictures.
After jumping the wire, I turn iPhone on and get IOS normally. Trouble is removed.
This is the complete repair for iPhone 6 error (9), more cell phone repair skills read at www.vipfixphone.com
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