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Samsung Galaxy S7 Edge Battery Replacement

Introduction

Follow this guide to replace a dead or low-capacity battery for the Samsung Galaxy S7 Edge.

Note: The curved edge and strong adhesive make the initial opening procedure very challenging. Be patient, repeat multiple heat and pull cycles, and the adhesive will eventually loosen.

Before disassembling your phone, discharge the battery below 25%. A charged lithium-ion battery can catch fire and/or explode if accidentally punctured.

If your battery is swollen, take appropriate precautions. Do not heat your phone. If needed, you can use a dropper or syringe to inject isopropyl alcohol (90+%) around the edges of the back cover to weaken the adhesive. Swollen batteries can be very dangerous, so wear eye protection and exercise due caution, or take it to a professional if you're not sure how to proceed.

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  1. Samsung Galaxy S7 Edge Battery Replacement, Rear Glass: étape 1, image 1 de 1

    • Opening your phone will compromise its waterproof seals. Have replacement adhesive ready before you proceed, or take care to avoid liquid exposure if you reassemble your phone without replacing the adhesive.

    • Heat an iOpener and apply it to a long edge of the phone for about two minutes.

    • You may need to reheat and reapply the iOpener several times to get the phone warm enough. Follow the iOpener instructions to avoid overheating.

    • A hair dryer, heat gun, or hot plate may also be used, but be careful not to overheat the phone—the OLED display and internal battery are both susceptible to heat damage.

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  2. Samsung Galaxy S7 Edge Battery Replacement: étape 2, image 1 de 1

    • Once the back panel is warm to the touch, apply a suction cup as close to the heated edge of the phone as you can while avoiding the curved edge.

    • The suction cup will not adhere well on the curved portion of the glass.

    • If the phone's back cover is cracked, the suction cup may not stick. Try lifting it with strong tape, or superglue the suction cup in place and allow it to cure so you can proceed.

    • Lift on the suction cup and insert an opening pick under the rear glass.

    • Due to the curved glass, you will be pushing up, rather than inserting parallel to the plane of the phone.

    • If you have trouble, apply more heat to further soften the adhesive, and try again. The adhesive cools very fast, so you may need to heat it repeatedly.

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  3. Samsung Galaxy S7 Edge Battery Replacement: étape 3, image 1 de 1

    • Once you have the pick firmly inserted into the glass, reheat and reapply the iOpener to soften the adhesive.

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  4. Samsung Galaxy S7 Edge Battery Replacement: étape 4, image 1 de 2 Samsung Galaxy S7 Edge Battery Replacement: étape 4, image 2 de 2

    • Slide the opening pick up along the side of the phone, separating the adhesive.

    • Go slowly so that the tip doesn't slip out of the seam. If sliding becomes difficult, reheat and reapply the iOpener.

    • Leave the pick in place and grab a second pick as you proceed to the next step. Leaving the pick inserted can help prevent the glue you just separated from re-adhering.

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  5. Samsung Galaxy S7 Edge Battery Replacement: étape 5, image 1 de 3 Samsung Galaxy S7 Edge Battery Replacement: étape 5, image 2 de 3 Samsung Galaxy S7 Edge Battery Replacement: étape 5, image 3 de 3

    • Repeat the previous heating and cutting procedure for the remaining three sides of the phone.

    • Leave an opening pick on each side as you continue to the next to prevent the adhesive from resealing.

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  6. Samsung Galaxy S7 Edge Battery Replacement: étape 6, image 1 de 2 Samsung Galaxy S7 Edge Battery Replacement: étape 6, image 2 de 2

    • Lift the glass and remove it from the phone.

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  8. Samsung Galaxy S7 Edge Battery Replacement: étape 7, image 1 de 2 Samsung Galaxy S7 Edge Battery Replacement: étape 7, image 2 de 2
    Outil utilisé dans cette étape :
    Tweezers
    $4.99
    J'achète

    • To install a new back cover:

    • Use tweezers to peel away any remaining adhesive from the phone's chassis. Then clean the adhesion areas with high concentration isopropyl alcohol (at least 90%) and a lint-free cloth to prep the surface for the new adhesive.

    • Peel the adhesive backing off of the new rear glass, carefully line up one edge of the glass against the phone chassis, and firmly press the glass onto the phone.

    • If you're reinstalling the old back cover, or using a back cover without adhesive pre-installed, follow this guide.

    • Be sure to turn on your phone and test your repair before installing new adhesive and resealing the phone.

    • If desired, you may reinstall the back cover without replacing the adhesive. Remove any large chunks of adhesive that might prevent the back cover from sitting down flush. After installation, heat the back cover and apply pressure to secure it. It won't be waterproof, but the glue is usually more than strong enough to hold.

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  9. Samsung Galaxy S7 Edge Battery Replacement, Loudspeaker Assembly: étape 8, image 1 de 1

    • Remove the twelve 3.5 mm Phillips screws.

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  10. Samsung Galaxy S7 Edge Battery Replacement: étape 9, image 1 de 2 Samsung Galaxy S7 Edge Battery Replacement: étape 9, image 2 de 2

    • Use the small notch on the lower left of the upper antenna to pry it out of the phone.

    • Remove the upper antenna.

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  11. Samsung Galaxy S7 Edge Battery Replacement: étape 10, image 1 de 1

    • Lift and remove the wireless charging coil from the phone.

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  12. Samsung Galaxy S7 Edge Battery Replacement: étape 11, image 1 de 1

    • Lift and remove the loudspeaker from the phone.

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  13. Samsung Galaxy S7 Edge Battery Replacement, Battery Disconnect: étape 12, image 1 de 2 Samsung Galaxy S7 Edge Battery Replacement, Battery Disconnect: étape 12, image 2 de 2

    • Use the flat end of a spudger to disconnect the battery connector.

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  14. Samsung Galaxy S7 Edge Battery Replacement, Battery: étape 13, image 1 de 1

    • Prepare an iOpener and apply it directly to the battery.

    • Alternatively, apply 1-2 drops of high-concentration (>90%) isopropyl alcohol under each corner of the battery and allow it to penetrate for several minutes to help weaken the adhesive.

    • Using too much alcohol can damage the display.

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  15. Samsung Galaxy S7 Edge Battery Replacement: étape 14, image 1 de 2 Samsung Galaxy S7 Edge Battery Replacement: étape 14, image 2 de 2

    • Use an opening pick to pry up the battery from the bottom using firm, constant pressure.

    • You will be prying against the case directly above the daughterboard and antenna cables. Pry carefully to avoid damaging either of these components.

    • You may need to reheat and reapply the iOpener repeatedly to further soften to adhesive. The adhesive is tough and it may take a few tries to get the pick started under the battery.

    • Try your best not to deform the battery during this process. Soft-shell lithium-ion batteries can leak dangerous chemicals, catch fire, or even explode if damaged. Do not use excessive force or pry at the battery with metal tools.

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  16. Samsung Galaxy S7 Edge Battery Replacement: étape 15, image 1 de 2 Samsung Galaxy S7 Edge Battery Replacement: étape 15, image 2 de 2

    • Slide the opening pick up the side of the battery to break apart any remaining adhesive.

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  17. Samsung Galaxy S7 Edge Battery Replacement: étape 16, image 1 de 2 Samsung Galaxy S7 Edge Battery Replacement: étape 16, image 2 de 2

    • Lift the battery out of the case.

    • Do not reuse the battery after it has been removed, as doing so is a potential safety hazard. Replace it with a new battery.

    • If you used isopropyl alcohol, wait ten minutes before installing the new battery to allow the alcohol to completely evaporate.

    • To install a new battery and adhesive, follow this guide.

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Conclusion

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

After completing this guide, calibrate your newly-installed battery.

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Arthur Shi

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12 commentaires

EXCELLENT TUTORIEL CLAIR ET PRECIS…….reussite du remplacement de la batterie ENCORE MERCI

daberalem - Réponse

Super Anleitung und super Werkzeug! War in 45 Minuten mit allem fertig und bin begeistert!

Lars Gang - Réponse

How.. in the bloody !&&*.. do you use the battery adhesive? Don’t just stop with the removal. Reapplication of the adhesive is an IMPORTANT STEP!

Doug Weber - Réponse

Hi Doug,

I’ve written up a short guide for the battery adhesive. You can find it here. It’s now added into the last step. Hope that helps!

Arthur Shi -

1-2 hours…acturally about 30 mins! excellent tutorial

Sean Celestine - Réponse

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