By Dante Mazzanti • Difficulty: Difficult
Use this guide to replace the battery in your Samsung Galaxy S6.
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.
This guide involves removing the rear glass. Removing the rear glass destroys the adhesive holding it in place. Follow this guide to reinstall the rear glass.
- Insert a paper clip or SIM eject tool into the hole in the SIM card slot on the power button side of the phone.
- Press to eject the SIM card tray.
- Remove the SIM card tray from the phone.
- Place the iOpener in the center of the microwave.
- Heat the iOpener for thirty seconds.
- Throughout the repair procedure, as the iOpener cools, reheat it in the microwave for an additional thirty seconds at a time.
- Remove the iOpener from the microwave, holding it by one of the two flat ends to avoid the hot center.
- Lay the heated iOpener over the rear panel for about two minutes to loosen the adhesive around the edge of the glass.
- Shift the iOpener to heat the remaining section of the panel for another two minutes.
- Once the rear glass is hot to the touch, apply a suction cup near the bottom edge of the glass.
- Lift on the suction cup to create a small gap underneath the rear glass, and insert an opening pick into the gap.
- Slide the pick along the bottom edge of the phone to slice through the adhesive securing the rear glass.
- Repeat the heating and cutting procedure for the remaining three sides of the phone.
- Leave an opening pick under each edge to prevent the adhesive from resealing.
- Use an opening pick to slice through any remaining adhesive.
- Remove the rear glass.
- Use tweezers to peel away any remaining adhesive from both the rear glass and the phone's chassis.
- Then, clean the adhesion areas with high concentration isopropyl alcohol (at least 90%) and a lint-free cloth. Swipe in one direction only, not back and forth. This will help prep the surface for the new adhesive.
- Remove the thirteen 3.5mm Phillips #00 screws securing the midframe to the phone.
- Firmly grasp the edge of the midframe assembly.
- Lift up on the midframe assembly while pushing down on the battery to separate the midframe assembly from the rest of the phone.
- While lifting the midframe, be careful to avoid snagging it on the audio jack or charging port.
- You may need to heat and apply an iOpener to the edges of the display to soften the display adhesive if midframe separation is difficult.
- Lift the midframe assembly up to separate it from the rest of the phone.
- Use the flat end of the spudger to disconnect the battery connector from its socket on the motherboard.
- Insert a plastic opening pick between the case and the battery.
- Push the pick further in to separate the battery from the phone.
- If the battery is too strongly adhered for the opening pick, place a warm iOpener over the battery to loosen the adhesive.
- Alternatively, apply some isopropyl alcohol under each corner of the battery and allow it to penetrate for several minutes to help weaken the adhesive.
- Remove the battery from the phone.
- Remove any remaining adhesive from the phone, and clean the glued areas with isopropyl alcohol and a lint-free cloth.
- 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 phone, not directly onto the battery. The adhesive should go around the perimeter of the battery compartment, but not in the rectangular cutout in the center (which is actually the back side of the display).
- Press the battery firmly into place for 5-10 seconds.
To reassemble your device, follow these instructions in reverse order. When reinstalling the rear glass, refer to the rear glass adhesive replacement guide.