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Use this guide to replace a worn-out or dead battery in your Galaxy M51.
If your battery is swollen, take appropriate precautions.
For your safety, discharge your battery below 25% before disassembling your phone. This reduces the risk of a dangerous thermal event if the battery is accidentally damaged during the repair.
You’ll need replacement adhesive to reattach components when reassembling the device.
Neye ihtiyacın var
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Insert a SIM eject tool into the small hole on the SIM card tray on the left edge of the phone.
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Press firmly to eject the tray.
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Remove the SIM card tray.
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Prepare an iOpener and apply it to the back cover for at least two minutes.
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Apply a suction handle to the back cover, as close to the USB-C port as possible.
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Lift the back cover's bottom edge with your suction handle, opening a slight gap between the back cover and the frame.
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Insert the tip of an opening pick in the gap you created.
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Slide the opening pick to the bottom left corner and leave it there.
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Insert a second opening pick and slide it from the bottom left corner to the bottom right corner to cut the adhesive.
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Leave the opening picks in place to prevent the adhesive from resealing.
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Use the pointy end of a spudger to disconnect the fingerprint sensor from the motherboard.
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Remove the 15 4.0 mm-long Phillips #00 screws securing the midframe.
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Insert an opening pick between midframe and display near the usb-c port.
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Slide the opening pick to bottom right corner to release the plastic clips.
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Use a flat end of a spudger to disconnect the interconnect flex cable from the motherboard.
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Apply an iOpener for 2-3 minutes to the screen to loosen the adhesive underneath. You might need to repeat this procedure several times during the battery replacement.
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Insert a plastic card underneath the bottom edge of the battery.
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Slice the plastic card through all the adhesive until you're able to pry it up.
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If possible, turn on your device and test your repair before installing new adhesive and resealing.
Secure the new battery with pre-cut adhesive 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.
To reassemble your device, follow these instructions in reverse order. Apply new adhesive where necessary after cleaning the relevant areas with isopropyl alcohol (>90%).
For optimal performance, calibrate your newly installed battery: Charge it to 100% and keep charging it for at least 2 more hours. Then use your device until it shuts off due to low battery. Finally, charge it uninterrupted to 100%.
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Try some basic troubleshooting, or ask our Answers community for help.
If possible, turn on your device and test your repair before installing new adhesive and resealing.
Secure the new battery with pre-cut adhesive 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.
To reassemble your device, follow these instructions in reverse order. Apply new adhesive where necessary after cleaning the relevant areas with isopropyl alcohol (>90%).
For optimal performance, calibrate your newly installed battery: Charge it to 100% and keep charging it for at least 2 more hours. Then use your device until it shuts off due to low battery. Finally, charge it uninterrupted to 100%.
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Try some basic troubleshooting, or ask our Answers community for help.
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