三星 Galaxy A40 电池更换

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三星 Galaxy A40 SIM 卡托更换

三星 A40 后盖更换

三星 Galaxy A40 中框更换

三星 Galaxy A40 断开电池

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If possible, turn on your device and test your repair before installing new adhesive and resealing.[br]
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[guide|113604|Secure the new battery with pre-cut adhesive|new_window=true] or double-sided adhesive tape. In order to position it correctly, apply the new adhesive into the device at the places where the old adhesive was located, not directly onto the battery. Press the new battery firmly into place.[br]
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To reassemble your device, follow these instructions in reverse order. Apply new adhesive where necessary after cleaning the relevant areas with isopropyl alcohol (>90%).[br]
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For optimal performance, after completing this guide, [[Battery Calibration|calibrate|new_window=true]] your newly installed battery. [br]
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Take your e-waste to an [[E-Waste|R2 or e-Stewards certified recycler|new_window=true]].[br]
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Repair didn’t go as planned? Try some [[Troubleshooting Problems After a Repair|basic troubleshooting]], or ask our [link|https://www.ifixit.com/Answers/Device/Samsung%20Galaxy%20A40|Answers community] for help.