Introduction
Use this guide to replace the worn-out battery in your Samsung Galaxy S8.
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.
What you need
Video Overview
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Fill a pot or pan with enough water to fully submerge an iOpener.
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Heat the water to a boil. Turn off the heat.
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Place an iOpener into the hot water for 2-3 minutes. Make sure the iOpener is fully submerged in the water.
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Use tongs to extract the heated iOpener from the hot water.
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Thoroughly dry the iOpener with a towel.
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Your iOpener is ready for use! If you need to reheat the iOpener, heat the water to a boil, turn off the heat, and place the iOpener in the water for 2-3 minutes.
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Heat an iOpener and apply it to a long edge of the S8 for about 2 minutes.
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In the following steps you will be cutting through the adhesive around the edge of the rear glass panel.
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The adhesive on the rear case is laid out as seen in the first image.
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The prying pattern as seen from the outside of the phone is as follows:
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Thick portions of adhesive
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Thin areas of adhesive
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Avoid prying here, to protect the fingerprint sensor.
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Tool used on this step:Tweezers$4.99
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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.
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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.
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Remove eleven 3.7 mm screws using a Phillips #000 screwdriver.
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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.
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Alternatively, prepare an iOpener and apply it directly to the battery for at least two minutes. Reheat and reapply the iOpener as needed.
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After reapplying adhesive, follow these instructions in reverse order to reassemble your device.
For optimal performance, calibrate your newly installed battery after completing this guide.
After reapplying adhesive, follow these instructions in reverse order to reassemble your device.
For optimal performance, calibrate your newly installed battery after completing this guide.
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44 Comments
Who are these geniuses that engineer a cell phone that requires complicated surgery in order to replace a faulty or dead battery? Really? And this POS costs the yuppified zombies how much?
Mate, check a term “planned obsolescence” on wikipedia. Even if 1/50 of people won't replace a battery but buy a new Samsung, it is a 1 extra cellphone sold. It was designed on purpose hard to remove.
Slavomir -
to make phone sistant and if you take how much thinks are in new phones of course they are complicated its same as new cars sorry but new technology is more sophisticated
Mine was stolen, it would be gone forever if they were able to pull out battery right away. But since I was calling and sending “play alert" commands through find my phone server, thieves were tired of it and left it on a sidewalk wrapped in paper and a t-shirt.
sen-q -
waterproofing?
