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Galaxy A71 FPC Repair

소개

If the device does not charge, the problem is with:

  1. Charging board
  2. Main flex cable
  3. Motherboard

In this manual, we will show you how to fix your device if the problem is with the Motherboard FPC connector.

필요한 것

동영상 개요

  1. Galaxy A71 FPC Repair, Connect the charger: 1 단계, 이미지 1/2 Galaxy A71 FPC Repair, Connect the charger: 1 단계, 이미지 2/2

    • Samsung Galaxy A71 does not charge.

    • Connect the charger and press the phone as per the second image.

    번역하기

  2. Galaxy A71 FPC Repair, Back cover removal: 2 단계, 이미지 1/3 Galaxy A71 FPC Repair, Back cover removal: 2 단계, 이미지 2/3 Galaxy A71 FPC Repair, Back cover removal: 2 단계, 이미지 3/3

    • Warm the device to soften the adhesive.

    • Use plastic tools and isopropyl alcohol to separate the back cover.

    번역하기

  4. Galaxy A71 FPC Repair, Middle frame removal / SIM Tray removal: 3 단계, 이미지 1/3 Galaxy A71 FPC Repair, Middle frame removal / SIM Tray removal: 3 단계, 이미지 2/3 Galaxy A71 FPC Repair, Middle frame removal / SIM Tray removal: 3 단계, 이미지 3/3

    • Remove all silver Phillips screws.

    • Remove the SIM Tray.

    • Use a suitable plastic tool to remove the middle frame.

    번역하기

  5. Galaxy A71 FPC Repair: 4 단계, 이미지 1/2 Galaxy A71 FPC Repair: 4 단계, 이미지 2/2

    • Disconnect the battery.

    • Connect the charger and measure the voltage at the two end pins. It should be ~5V.

    • If not, search for the problem at the charging board or the main flex cable.

    번역하기

  6. Galaxy A71 FPC Repair: 5 단계, 이미지 1/2 Galaxy A71 FPC Repair: 5 단계, 이미지 2/2

    • Remove the black tape stuck around the connector.

    • Use a soldering iron, flux and tin wire to resolder the first pin of the FPC connector.

    • If the connector is broken, it's better to replace it.

    번역하기
결론

To reassemble your device, follow these instructions in reverse order.

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Good morning. My A71 screen is blinking on and off black screen. What can I do to fix it? Also when I'm attempting to type in any chat I have to press down really hard to get the letters on the screen? As my phone heats up it goes black,if I'm in a room that has AC units it remains on for a longer period of time.

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