Samsung galaxy S21 Ultra Teardown and Disassembly: Repair Guide
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- čas přidán 24. 04. 2021
- We are doing a teardown or disassembly on a Samsung Galaxy S21 Ultra and assembly or reassembly. This repair applies to the Samsung Galaxy S21 Ultra, Samsung S21 Galaxy and Galaxy S21fe. We are doing a disassembly of the Samsung Galaxy S21 ultra to test its repairability.
Recommended Charger (25W): amzn.to/3Lx4SZm
TOOLS and PARTS:
Professional Tools: amzn.to/3dTewWa
Basic Tools: amzn.to/3uArZJi
Heat-gun: amzn.to/3fVDY03
S21 Ultra screen protector: amzn.to/3aFQqxk
S21 Ultra camera protector:amzn.to/3en1rEM
Only attempt your own repairs if you can accept personal responsibility for the results, whether they are good or bad.
(DISCLAIMER: This description contains affiliate links, which means that if you click on one of the product links, l will receive a small commission.)
👋🏽 *Let's go for a 100 LIKES guys* ⭐
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Hello..... please my iPhone won't come on after it went off while charging..... I have tried all I can but it is not working. I think it is because I used a different charger. Please I really need your help. How can I contact you.
Responded in your other comment
Just go to I fix it channel they have better and easier tear down. You're welcome
@@AlphaXiro 😭please don't go we need you😭
To be serious if you look at ifixt only you will be surprised by the amount of hidden work they do not show on their videos. Eventually you will panic and break something. My video is complete ✅
@@ersbit I 100% agree with you. I like his videos for entertainment purposes but as someone who used to repair phones for a living, if you actually want to learn how to repair your phone stay here. This is the first video I've seen from you but I'm impressed!
Seriously, well done on the video. Clear instructions, video quality, and tips. 100%
Thanks for the kind words. Appreciate it
@ersbit good video afterall , just one thing to mention . 1st thing to do when u go for a teardown , remove the simtray ! ;)
True, I got so excited 😆 that I tend to forget the SIM card tray 7 out of 10
Hello nice video. I have a question regarding the two sensors he removed between 4:50-5:00. I bought a used s21 ultra 2 weeks ago and I realist that I have awful reception. Now I opened the phone and i realist the two sensors are not in my phone and also the port on the phone where I would connect the two sensors are not there. How can that be?? I mean sometimes have reception and I also have 5G then. Is it possible that there are Models of the S21 Ultra without this to Sensors? I hope someone can help me and thanks in advance.
Hi, what's happening if after repair and close everything, the side 5g antenna keep removing from his places! There another way to stick the antenna well then just to push it with a finger???
hi, thanks for your videos. I have inserted the skewer for the sim through the hole of the microphone. Do you think I have damaged something?
Not exactly sure you will need to test the mic to see. On a phone call, while filming front and back camera and while recording memo audio. If all these the sound comes out good you can be sure that no damage was done.
@@ersbit Hello. Thank you for your great content! I'd to ask about this topic, my main mic (the ones below) is not working. I had run diagnosis test and only this mic is not working while the upper mic is working fine. Do you think that's due to damaging mic parts and not from system bug?
5:07 Isopropyl alcohol melts the adhesive fast and makes the battery removal very easy.
😮 That is correct, but what if the liquid melt the glue that attach the screen/digitizer to the metal frame? I prefer heat it is less risky and I don't have to add a new tape 😅
My Samsung galaxy s21 ultra is showing emergency calls pls what is the solutions to it and i have reboot it.could it be the antenna or board on the sim tray
Great video sir!
Pleasr may I ask, wont the pre heating damage the phone's internals 🤔?
No heating won't damage you have to be time sensitive. About 2 to 3 minutes maximum straight. If you have a heat gun keeping the heat at the same location on the screen can damage it that's why you need to move around right left etc....also use the lowest setting of your heat gun (high setting can burn very easily)
All these years I had only one screen burn from heat. Internals are well protected if adequate heating is used.
@@ersbit ya that's a pretty smart way to remove the battery, applying heat that will pass through the screen
If I'm just to fix the stuck volume button of regular s21, do I have to remove battery and some components of the phone? I dropped my phone and now it's stuck on safe mode.
It would be better to disconnect the battery and remove the motherboard if it is in the way. The battery does not need to be removed.
Hi, may I know if the camera bump on s21 ultra is durable to protect the component of the cameras especially the lenses? Is it safe to put it down in a surface where the camera bump will hit it first?
Hello, I would suggest to add a case/tempered glass on the lenses/camera bump to protect them. It's kinda durable, but it doesn't take much to scratch them and you'll be obliged to change the whole thing
@@ersbit I see, how about alunimum alloy frame instead of tempered glass, which do you prefer? Im a bit worried that theres a bad effect if put down my phone and the camera bump will hit first the surface haha. Please enlighten me that this is safe
It really depends on your preference. You just have to make sure you protect you device. I would go with glass personally because it is lighter than aluminum case.
Which part of the motherboard is the power ic. I have a dead motherboard that's good and a good motherboard that's not able to activate with service.
Brother I am afraid I don't have that information. Anything soldering de-soldering micro components is out of my knowledge range.
You will need to search more on parts of the motherboard find the right thing de-solder it and solder on the good board (soldering skills also). Also that's if it's something that can be removed and reattach (that's very technical and out of my range sorry I could help more)
@@ersbit no problem, thanks for the reply
Hey could I know if that is the Qualcomm or Exynos style phone?
Not exactly sure but here is the model number SM-G998UZKAXAA you can find which processor it used. This was unlocked and US version
@@ersbit Ok thank you, I think if it is the US version it has the Qualcomm chip but im not sure
Sir i wanted to ask is the lens over the 10x camera also plastic or is it is glass because mine has dust and i wanted to clean it safety woth starching it
Not exactly sure I believe it's all plastic. Use a microfiber cloth to clean slowly. If the camera is still bad you will need to replace it.
@@ersbit or should I use a dslr sensors cleaning kit
My samsung s21 ulta got water damage .It can detect sim but there is no signals or emergency signals on it kindly tell me the solution or the issue to look into
Not sure you'll need to troubleshoot the hardware. Teardown check all components for water damage then replace faulty parts. You can start by replacing the charging module.
Great Video Sir, but whats the pice on the left side of the battery?
Hi left of the battery, small green and removable that is the 5g antenna
@@ersbit awesome thank you very much, my german s22 ultra is missing that part 😁 may i ask another question. Do you know what these stickerß on the inside of the backpanel are for? There're two gray sticker, a green/brown very thin sticker and the metal one which i assune is for some connection. Thanks again sir.
Hi, I have some problems with my s21 ultra. I have no more access to mobile signal, internet data and so on.. I can not do calls and i can not receive calls. I can't even do emergency calls. What could it be? The antenna? the antenna cable? Can you advice me on this? i can't afford to pay 300 $ to change it so i would like to do it myself. Any advice would help thanks
Wooo this look difficult to advice.
No network, no calls this looks like antenna stuff, it can be the board with the sim card too.
First and easy step would be to open the phone disconnect stuff and reconnect to make sure it's not a connection issues with flex cables. If nothing new happens you'll need to change parts one by one. Try another sim card first to see if that one work.
For parts Swapping you'll need to get correct parts and change them preferably from cheapest to more expensive.
@@ersbit is there a website you can advice? where i can look for the parts? Thanks again
I use eBay to get parts regularly. You can try amazon too
@@ersbit After cleaning my phone i have similar problem now. Phone doesnt Detect Sim Card anymore
Sim Card is tested - it works in other phone
Parts i changed allready :
-Sim Card Reader
-2 Flex cables from Sim Card reader to Mainboard
-The black part on top you are removing at 3:35min
Until now i didnt want to change the mainboard since i dont want to loose all my Data on the phone
Hi, there is a way to change the ultrasonic fingerprints sensor? Mine is dead 😓
Am not really sure it's possible you'll have to remove the frame which is highly risky and might damage the screen. Then replace the sensor embedded on the screen. It might be possible but am not really sure.
@@ersbit this evening it has started...I'm not sure it will last for long time. The right way to replace is to change the screen i suppose...thank you for answered and for all yours video 😊
Ohh that's good news, hopefully it keeps working 👍🏽. You're welcome, glad to see you enjoyed the video
My touch is not working, pannel is 100 percent fine, what should I do?
It's the digitizer. Replacement of it alone can be hard and damage the screen. It's better to get a new screen. It's easier but more expensive.
Pls when I shake my s21 ultra there is some little noise inside I don't know what that is pls can you explain to me what's that noise
It can be camera making that noise maybe. Battery am not sure because they are well glued to the frame. When I take the motherboard of the s21 with the camera on it and shake it it makes tiktiktktitk noise maybe that's what you have.
@@ersbit thanks
@@ersbit because is stil a new phone that's why am scared
Is this the exynos variant?
Yes. This was Exynos if I remember correctly
samsung s21 ultra, in 4k 60fps video, at the moment of zooming, the image becomes blurry, any ideas about this failure?
Humm if on all other setting or use its not blurry it's clear. It must be the hardware reaching it's limit of focus when you zoom / extended zoomed.
The device has less focus power when you keep zooming
@@ersbit
Thanks for the info delivered
can you make video on how to replace power button on this phone my button is mesed up
Okay I'll try to make that before beginning of next month.
@@ersbit thank you. Need to replace mine asap. It doesn't work fully
@@lorenzobatopis ok. When I get free time will try this during the weekend and send you something 👍🏽
You should have shown how to remove front camera without damage too..
Sorry i did not remove it there. czcams.com/video/S_1ZvtLiDMo/video.html Here it is the S21 FE I removed it.
There is two types....
1- the camera is placed with thing double sided tape you heat the front of the screen just a little bit and remove the camera.
2-the camera is there with solid glue on the right and left (it is a shiny solid glue like hot stick glue)
You heat the front of the device a little bit and try to remove it but you will need to prey out the camera since it is a solid glue. I show it in the S21 fe video.
when you prey out make sure it is not too much force because the camera can get damage if the plastic is bent or something like that.
Here in the S21 the they used normal tape not solid glue czcams.com/video/Nf4A-ocTj7o/video.html at 2:21
Wish samsung used a vapor chamber in addition to graphene pad.
can you explain a bit about your vapor chamber concern ?
@@ersbit So the phone would run cooler for longer.
Oh ok the small copper cooling ( yes more in these devices will be welcome)
They might have to sacrifice device thickness. Thanks GOD this trend of slimming smartphones is vanishing slowly they might consider more cooling in the S22 ultra
@@ersbit They need too, the sd 888 is a hot chip.I'm reading the upcoming sd895 is hot as well.
That's some good info.
Hoping the S22 ultra doesn't disappoint in a few months
CAN YOU MAKE THE 128gb ULTRA INTO 500gb ???
😂unfortunately that's not possible
Always remove the sim card tray first, for the rookies out there😂
🤣🤣
That back is glass.
Yes. It's confusing the way it feels to the touch and the look