Introducción
This guide shows how to remove and replace the battery for the Samsung Galaxy S20.
The battery is held in place with strong adhesive. High concentration (over 90%) isopropyl alcohol is necessary to loosen and release this adhesive.
If your battery is swollen, take appropriate precautions and do not heat your phone.
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 in order to complete this repair.
Qué necesitas
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Heat an iOpener and apply it to the back cover's bottom edge for two minutes.
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Apply a suction cup to the back of the phone, as close to the center of the bottom edge as possible.
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Pull on the suction cup with strong, steady force to create a gap between the back cover and the frame.
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Insert the point of an opening pick into the gap.
While pulling on the back glass with the suction cup, I found it helpful to use something like the opener tool to press down on the frame. Made it easy to pull open even with the iOpener.
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Apply a heated iOpener to the left edge of the back cover for two minutes.
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Apply a suction cup to the back of the phone, as close to the center of the left edge as possible.
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Pull on the suction cup with strong, steady force to create a gap between the back cover and the frame.
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Insert the point of an opening pick into the gap.
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You can try also applying a few drops of high concentration (over 90%) isopropyl alcohol into the seam to help loosen the adhesive.
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Apply a heated iOpener to the right edge of the back cover for two minutes.
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Apply a suction cup to the back of the phone, as close to the center of the right edge as possible.
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Pull on the suction cup with strong, steady force to create a gap between the back cover and the frame.
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Insert the point of an opening pick into the gap.
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Apply a heated iOpener to the top edge of the back cover for two minutes.
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Gradually slide the pick from the right edge of the device around the top right corner.
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Continue slicing along the top edge all the way to the top left corner to fully separate the back cover adhesive.
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Lift the back cover slowly. Use opening picks to slice any remaining adhesive.
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Remove the back cover.
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This is a good point to power on your phone and test all functions before sealing it up. Be sure to power your phone back down completely before you continue working.
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Remove any adhesive chunks with a pair of tweezers or your fingers. Apply heat if you're having trouble separating the adhesive.
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If you're using Samsung custom-cut adhesives, follow this guide.
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If you're using double-sided tape, follow this guide.
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Use a Phillips #00 screwdriver to remove the five 4 mm-long screws securing the motherboard bracket.
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Use a pair of tweezers to gently pull up and unclip the motherboard bracket from the plastic midframe.
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Gently peel the wireless charging coil away from the device.
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Remove the wireless charging coil.
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Use a Phillips #00 screwdriver to remove the five 4 mm-long screws securing the loudspeaker and lower midframe.
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Insert the point of a spudger or a pair of tweezers into the notch in the top left corner of the midframe and pry up to release the clips holding it in place.
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Remove the loudspeaker and lower midframe.
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Use a spudger to pry up and disconnect the main and auxiliary flex cables from the daughterboard near the bottom of the device.
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Use a spudger to pry up and disconnect the main and auxiliary flex cables from the motherboard.
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Gently peel up and remove the main and auxiliary flex cables.
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Use a spudger to pry up and disconnect the main display flex cable from the motherboard.
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Gently peel up and bend the display flex cable out of the way of the motherboard and battery.
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Apply two drops of high concentration (over 90%) isopropyl alcohol to the top edge of the battery.
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Wait one minute to allow the isopropyl alcohol to soften the adhesive.
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Apply a suction handle to the center of the battery.
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Brace the top and bottom of the device against your work surface with one hand and firmly pull up on the suction handle with the other.
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The adhesive takes time and repeated pulls rather than strong force to loosen. Pull on the suction cup with steady force for 15 seconds at a time.
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If the battery doesn't loosen, apply 1-2 drops of isopropyl alcohol along the top, left, and right edges, wait a minute, and pull again.
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When the battery begins to lift from the device, proceed to the next step.
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Insert an opening pick underneath the bottom edge of the battery and twist to loosen the battery adhesive.
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Remove the battery.
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Peel up and/or scrape away any remaining battery adhesive before cleaning the battery well surface with isopropyl alcohol and a lint free cloth.
What is the piece behind the battery that looks like its circled called? Is it normal to see this piece when shining a flashlight onto the screen when the phone is off?
That’s the fingerprint sensor! Because it’s embedded in the screen, if you shine a light behind it, you can see it through the front glass.
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Compare your new replacement part to the original part—you may need to transfer remaining components or remove adhesive backings from the new part before installing.
To reassemble your device, follow the above steps in reverse order.
Follow this guide to perform a battery cycle reset, and calibrate your newly-installed battery.
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Check out our Answers community or S20 battery troubleshooting wiki for help.
Compare your new replacement part to the original part—you may need to transfer remaining components or remove adhesive backings from the new part before installing.
To reassemble your device, follow the above steps in reverse order.
Follow this guide to perform a battery cycle reset, and calibrate your newly-installed battery.
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Check out our Answers community or S20 battery troubleshooting wiki for help.
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18 comentarios
I had a huge amount of difficulty removing the battery during this repair. The adhesive is really strong, the suction cup doesn't stick to the battery very well and if you lever it out you run the risk of puncturing the battery. It's also really difficult to pull up on the battery while holding the phone down, especially because you want to avoid touching the circuits.
Eventually I succeeded and everything seemed to work but the next day the phone wouldn't switch on. I think maybe the adhesive remover got somewhere it shouldn't have. If I could add something to this guide, it would be "once battery is removed, allow phone to sit for 30 mins to ensure all adhesive remover has evaporated". If I was allowed a do-over I would try to heat the adhesive instead. Or use the string trick. I'm switching to an iphone now because apparently they don't glue their batteries.
Good point! I would suggest to use pure isopropyl alcohol and not something below 99%. The residual water might be not much but still there is a slight chance of it getting somewhere inside. Also the 99% pure alcohol evaporates much faster and leaves no traces. Apple batteries are also glued in with adhesive. What apple does right are the pull-strings to remove the sticky tape between chassis and battery.
Followed every step and managed to complete it but after a couple of minutes the phone screen stopped working and turned black.
I'm pretty sure that happened because the isopropyl alcohol went through the phone into the screen through the gap right under where the battery seats.
If you attempt this at home be aware this might happen, so disconnect the display too or look into using a different method for removing the battery.
I don't think this repair is worth attempting. I also killed my screen with this one, similar to the two commenters above. Whether it was isopropyl alcohol getting into the LCD or whether it was some issue with flimsy connectors I don't know. I was super careful and I've still bricked it, so I'd rate this repair as 'too risky'.
i typically use an iPlastix opening tool, a heating pad and lots of alcohol, get the very tip of the opening tool to sort of bend or roll into a curve, then slip the bent tip into the gap between frame and battery dripping some alcohol onto the tool, eventually you can get the rolled end to slip underneath the battery. then just slide the tool around the perimeter of the battery, cutting the adhesive, eventually, once all the adhesive is cut the battery will easily pry out of the phone. continually apply alcohol to the surface of the tool once you get the curved end under the battery, the alcohol will drip down the tool and find its way under the battery more easily weaking the adhesive.
since the tool is made of plastic, its almost impossible to scratch, bend or puncture the battery during the removal process by using this method, this is also my preferred method for removing bulged batteries that a suction cup wont stick to, or batteries where putting any unnecessary pressure could cause them to burst.
As with other comments, battery swap went fine, but after a bit of use I connected the phone to a charger and screen went black. Strange experience, feels like it's booby trapped.
I used this repair guide to change my battery in my S20. All went well and successfully especially after using this guide. IPA helped massively to remove the battery but I DO NOT RECOMMEND USING IT. i read the comments about the screen going blank etc. i used a heat gun to evaporate the IPA before reassembling the device thinking this would eliminate any issues. I WAS WRONG. DO NOT USE IPA to remove the battery. I turned my phone back on ant it was okay for a few minutes. Then the screen started flickering and turned completely green then went black. The phone still works as i can hear the notification sounds etc but no screen. Again DO NOT USE IPA TO REMOVE BATTERY
When the alcohol gets into the screen, the screen becomes black, it dies. Do not try this guide.
Did this repair to a T, it killed my display about 30 mins later. DONT USE IPA
I even used my heat gun to evaporate all of it off, let the phone sit for an hour too. still killed it!
Hi Bradley,
I'm really sorry to hear of your repair experience. I think the IPA may have seeped through the fingerprint sensor cutout and into the OLED panel.
When the battery adhesive is still intact, it should seal against moderate use of IPA along the top and side edges. I looked over the guide and changed the wording to give clearer guidance and warnings on how much to apply, where to apply it, and when not to use IPA.
Is there any procedure needed to reset the battery stats or charging levels? I replaced without problem but my battery life is not as good as my old battery! Wondering if there is a step on the software side?
Did you figure it out? I have the same issue. Looks like an original battery, but batt life is weak and Samsung Members diagnostics shows battery needs replacement...
Slawek -
The screws are more likely to be #0 JIS rather than #00 Phillips. Certainly my JIS screwdriver fits much better than my Phillips one.
I haven't had a problem with IPA use yet, but the battery adhesive is stupidly strong. Just use a mechanical clip, Samsung. My Blackberry is: slide back off, lift up battery, insert new battery, slide on back cover. Probably five seconds. Things weren't so bad in the 2010s.
The Samsung battery reset app doesn't recognise the QR code on the packaging so far.
As well i killed my screen, i turned up and and worked a few minutes, later I left it charging, and when I came back the screen was completely black, I plug it to my monitor, and the phone is still working but no the screen. Anyway his method did not help me to remove the battery
After all these comments concerning a screen-blackout after using alcohol I didn't dare to use that. Just pulled with the suction handle and pried with different tools from the bottom. That took a lot of time, sweat, fear to break the battery and quite some force. Why do manufacturers glue in the batteries?!
Worked out fine and I'm happy with the new battery.
why does it needs to be below 25%? I understand it being at maximum 60%, but for what I learned Li-ion batteries are unstable at 0% too. Maybe it needs to be better specified?
Found that using the iOpener did not provide enough heat to weaken the adhesive, went with a hairdryer instead. Make sure to never keep the hairdryer still, and apply heat on high for 30 seconds to 1 minute per side did the job for me. iOpener just did not get hot enough
Phil R - Contestar