Samsung Galaxy S21 Plus Battery Replacement!

If your Samsung Galaxy S21 Plus is running out of juice earlier in the day than you expect it to then the culprit might be the battery. Today we're going to run through the process of replacing the battery in your Galaxy S21 Plus.
We recommend grabbing our Pro Tech toolkit for this repair!
www.ifixit.com...
Be sure to follow the guide specific to your device!
Samsung Galaxy 21
www.ifixit.com...
Samsung Galaxy S21 Plus
www.ifixit.com...
Samsung Galaxy S21 Ultra
www.ifixit.com...
We have parts!
www.ifixit.com...
We have a video showing you how to reapply adhesive to your Samsung phone!
• How To Re-Apply Adhesi...
Subscribe to our channel for all our latest teardown and repair videos!
www.youtube.co...
Follow us on Twitter: / ifixit
Check us out on Facebook: / ifixit

[@peppershade1]

Remember that when you are in the EU you have 2 years of warranty, which includes replacing an old battery for free, make use of that before you try this yourself.

[@peppershade1]

@@Whatsaalias it really depends, I've worked for Samsung in The Netherlands. If your phone is still in one piece it should be under warranty

[@tcntad87]

The warranty isnt mandatory and amount of years is up to retailer. In Sweden its 1 year and batteries arent included

[@peppershade1]

@@tcntad87 in the EU a phone manufacturer must give you 2 years of warranty. They cannot exclude specific parts. If the phone is not working as intended they must repair it. Battery's are always a bit of a grey zone where they have to decide if a battery is good enough or not. Samsung has specific software to read out your device, which will then generate a report and gives you a graph with the battery lifespan and charge cycle count which gives the repair shop a result they have to follow. But from my experience in the Samsung Service Center, they'll replace your battery even when it's still above of the failure threshold. I can't guarantee they'll replace it for you but the chances are high after a year of usage

[@nicolaucezar]

If the battery fails diagnostics

[@ondrejkohoutek7009]

@@peppershade1 Incorrect. There is no 2yr warranty for the batteries.

[@ronlevin2339]

Samsung have one of the strongest adhesive under the battery in the phone market. I usually do not have a luck with IPA and suction cup , and I use a heat gun to soften the adhesive and them the pry tool to remove the battery. In many cases old adhesive still strong enough for a new battery as well. So cool that all screws are same size and type.

[@richardwhelner6681]

Thank you, sealed batteries are ridiculous. The same corporations who accuse us of not being "sustainable" try to make us buy a new phone every 2 years instead of re-using the same phone with a new battery..

[@dfmayes]

I just did this on my S10e. Not that satisfied. Getting the old adhesive off took forever. The adhesive thing they give you is thick so the case doesn't lay down flush like the original. I thought I was being careful but still managed to crack the cover. It's better than shelling out for a new phone, but don't expect miracles.

[@kadduable]

My S21 ultra doesn't make some siquick sounds while am on a call. Do I need to replace the mouthpiece or loud speakers? Thanks for the great knowledge

[@GunTech]

This is extremely involved for a battery swap, and it's a greatest problem with smartphones for all consumers. I saw that you've offered advice to joystick manufacturers how to get rid of drift. Do you have a similar video where you've solved this battery problem?

[@mranon42023]

they coudl jsut keep the old designs in wich you coudl just open the back and replace the battery straight up. there is literally no benefit in this new design for consumers. they just do it like this to push you to buy a new phone or pay them to change the battery for you

[@Hernanqwerty]

​@@mranon42023 my guess is this is the only way to make the phones waterproof

[@mranon42023]

@@Hernanqwerty hmm... i actually really doubth this are waterproof. besides i think they could still make them waterproof plus easy to open. also easy opening is more important to me than waterproofing (useless to most people)

[@Mcxentromalled]

The suction cup worked so good. i realized im gonna damage the screen if i use other thin prying tools so i used this method and i removed the battery with little to no effort and i didn't damage the screen inside, you just have to pull it back and forth then put alcohol to loosen the glue more. I didn't damage the old battery and the screen

[@romanceidiot]

Can anyone advice on aftermarket battery replacement vs original Samsung service Center batteries quality?

[@chinmoys2015]

Beautiful channel ❤️

[@robertfrank9228]

Money... I came to this conclusion a few months ago, I didn't want to believe it, but I do... It sickens me and makes my heart sad... As always thank you Sir.

[@AdventureRich]

Do you retain the IP rating of the phone with this method?

[@HearMeLearn]

you should, you just need to make sure you replace the adhesive that goes around the back cover

[@AdventureRich]

@@HearMeLearn thanks!

[@Pesar25]

Is it a problem when you buy a brand new Samsung battery with a 2 year old manufacturing date/stamp on it?

[@buixote]

Denatured (ethyl) alcohol works better than isopropyl.

[@Pcut]

Will vodka work?

[@netsoldier363]

@@Pcut Yes but after drinking you might not find where have you left your phone.

[@KK11O]

Can you still remove the battery without the alcohol?

[@gustavomercado1599]

It will be very difficult. Definitely not recommended

[@mohamedguelbaoui3689]

nice job

[@johntimpe8365]

seems a lot to replace a battery

[@dfmayes]

Yeah, basically Samsung doesn't want you to do this. The just want to sell more phones. 🤣

[@80skid83]

​@dfmayes facts, only thing now is phones that are 2 or even 3 generations apart now have similar specs . A new battery, even if done by a professional fitter is still more worthwhile than upgrading to a phone with similar specs

[@raven_willow__]

My phone been getting hot is that because of the phone battery?

[@waltschannel7465]

I replaced the battery, and phone restarted OK. I charged the phone 45% to 75 % then let it cool, then after 1/2 hour, finished charging to 100%. Next day, I checked it and the screen was black, but it would receive calls, which I could not answer. What do I replace next, the screen or main board?

[@bowlinbob6]

I'd open it back up and recheck the connectors you unplugged to access the battery. Make sure they're all connected and didn't come loose. Sounds to me like the connection for the screen to the board got loose or possibly damaged. (specifically the 3 ribbon cables @ 3:30..but check everything)

[@makedaevilmage]

Got the battery out with IPA ... although, after putting the phone back together and turning it on the screen went black ... and stayed black. I mean the phone still vibrates when I turn it on and plug it into the charger, but the screen stays black. I believe some IPA might have leaked into the fingerprint sensor area, shorted something ... and essentially broke my phone.

[@mfirdaush]

Just replaced my battery today and same thing happened. Does your phone returned to normal after some times?

[@semaka66]

I replaced my battery and I think the IPA damaged my fingerprint sensor. It's not working anymore.

[@zani2054]

Hy After replacing my battery (on samsung note 9) should i do something? After replacing it the accubattery app shows the same max capacity as the old battery (~78%) even after reinstalling the app.

[@benscko]

those app readings are inaccurate anyway. dont worry about it

[@3x__]

and the type of heat to open does not happen ???

[@lilolopez2790]

Getting the old battery out is a nightmare. I was able to get it out by using the kit utensils to pry up the battery pushing the edges. I also applied IPA but applying pressure while lifting was the key to get it out and move on with my life.

[@kcastillo1234]

Do you really have to use a magnetic mat all the screws are the same size

[@Adri_BlackBeast]

Creo que os ha faltado desconectar y conectar la batería 7 veces más… 😆

[@Phone-Center]

I fixed many phones, the S21 has the worst battery adhesive. The frame cracks and bends before the glue gives up.

[@sunnyt30]

Do you recommend me to remove old battery with another one because my phone is getting hot too quickly

[@RealmeC-og2ts]

where do you buy battery ?

[@xoxox4965]

Ebay

[@tomking1890]

Take it to a shop that does this.

[@MetalSonic1389]

FYI the shop watches these exact same videos to do these repairs we just have alot more time and experience

[@tedsanderflander8142]

What???? I thought androids batteries just pop out easily

[@Jefftaylor2114]

The suction cup is a terrible way of trying to remove this battery. The suction doesn't even stick. I used so much alcohol it's ridiculous.

[@Mcxentromalled]

No way, it's the best method for beginners since you didn't have to touch the back of the battery which can damage the screen if scrapped

[@fsbgenetics6339]

I put a new battery in but my screen doesn't turn on. I can hear the alarm going off but just no power to the screen. I don't think I damaged the flex cable

[@mfirdaush]

Does it recover after some times? I had the same issue

[@Mcxentromalled]

​@@mfirdaushwhat happened??

[@CMG02]

It never told us if we had to reapply adhesive for the battery and the loudspeaker.

[@eldestisland4520]

But you guys cracked the back cover...

[@mranon42023]

actually if you look closely it was already cracked

[@Suesses-Einhorn]

Really bad example, touching all over the cameras, you did it the first time, did you?

[@lion.melnik]

make a gift for a teacher from Ukraine

[@BaconFaceMcGee]

The moral of the story is: do not ever replace your battery.

[@yendothegamer]

If your phone is perfect besides the battery life then it's extremely more budget friendly and don't need to worry about spending another 1k+ for a brand new phone unless your violent and break your phones components

[@BaconFaceMcGee]

@@yendothegamer I meant do not get the Galaxy S21 Plus battery replaced. I had my battery replaced in my iPhone 7 in August of 2022. The battery capacity was 65%. I use the SE 3 now.

[@yendothegamer]

@@BaconFaceMcGee why not get the battery replaced if I keep my s21 plus for 3 years and want to keep it for a couple more wouldn't replacing it be cheaper and allow your phone to run longer?

[@BaconFaceMcGee]

@@yendothegamer Only replace that battery if someone more experienced is doing it. It seems too hard for most people to attempt.

[@yendothegamer]

@@BaconFaceMcGee oh I've fixed dryers, my pellet stove, and appliances before I'm a fix it person and I've also taken apart consoles and put them back fine.

[@MR.DOMOUZIS]

First

[@Ozygny]

Third !

[@PushyPawn]

Trust me, she's not impressed.

[@Dorraj]

Good to know after 17 years kids still think it's cool to comment "first" on videos. Glad some things never change.

[@PushyPawn]

@@Dorraj If it were indeed *kids* that would be understandable. However it's usually a 40+ y/o virgin who spends the whole day in front of the PC waiting for YT notifications and commenting "first" before even watching the video.