Reason 1: just access the data line there is a hint, this problem is generally poor contact, the solution: see whether the data line gold finger has dirt, and then check whether the phone jack has dirt, clean with cotton swab alcohol.
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Reason 2: If you use a computer to charge, this prompt when inserting the front usb port is generally caused by insufficient power supply, please plug it in the back of the case, or change the charger to charge.
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Cause 3: The charger is not original, the voltage is insufficient, try to replace the charger.
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solution
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1, the first possible your line has a problem, certainly not the original data line, now Apple on the copycat data line blocked, with a few days will be detected is not the original, will prompt not support, and then can not charge.
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2. It may also be a problem with the Lightning cable. You can unplug it and insert it in another direction to continue charging.
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3, make sure it is purchased on the official website, if it is not purchased on the official website, or through regular channels. It is possible that the parts have been replaced.
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Of course, the above method is only a temporary solution to the problem of not being able to charge, if you want to solve the fundamental problem, you need to replace the data line. If you are using Apple's iPhone6 mobile phone, it is recommended that you take the original data cable, go to Apple's after-sales instructions, and test it to see if you can replace the data cable for free.
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Various electronic brands have sold Apple 6 data lines, but when buying, you need to verify whether it can be matched and whether it can be used normally, so as to avoid unsupported situations. Apple 6 is best to use the original accessories, so that outside the benefit of our mobile phone, there will be no special problems, if the original data line appears, you can go to after-sales testing and repair. Although the accessory looks very inconspicuous, it is very important, and if the problem of charging the cable leads to the inability to use the phone, it is not worth the loss.