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원문 게시자: Ronaldo ,

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Did the batteries need activation?

Did you calibrate te batteries first?

Step 1: No matter what the battery level is, use your iPhone until it shuts down because of no power. It’s up to you if your enable/disable Low Power Mode.

Step 2: Plug your device in to a power source and load it without any interruption until it reaches the maximum 100% battery charge.

Fact: Make sure that you use and official Apple charger!

Step 3: Reset your device by simultaneously pressing and holding the Power and Home buttons. Hold them for a few seconds, even during the appearance of the iOS Shutdown screen.

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