Very impartial and no random, unnecessary comments. Just straight to the point disassembly and show what connects to what. And no biasness too. I love it! Better than jerryrigeverything who got blinded by hate towards certain companies.
agreed! and no politics! During presidential elections jeryrigeverything did NOT shut up about his democratic and left politics. I want videos of teardowns, not to listen to him prattle.
Sir I wanted to ask that is the lens on the 10X camera glass or is it also plastic because mine has water deposit so it's not clear i wanted to clean or will it scratch?
Well it's not always unnecessary comments. Sometimes Jerry point out things that shouldn't been done by companies such as the poor repairability of the S10 series, the unnecessary difficulty to remove the battery of some devices, etc. In terms of the comments he made about politics, I'm also not a big fan of those. But about the rest, not a big deal.
Wow, that was pretty quick. You did a teardown of the latest S21 Ultra, already? Neat!!! Not just that mate, but you also explained things so well that I've learnt a lot from your video today than ever before.. :) So, thumbs up for your good work & you got me subbed to your channel as well. Hoping to see more such interesting & informative videos from you.
@@ronong5137 yeah, because delayed reviews make sense, software updates & optimizations can occur until the review is done, while disassembly & resistance tests don't make a lot of sense to wait for, since the phones internals will be exactly the same today an 1 year from now(unless it's recalled to address an issue)
Hi, great video and I have question. The S21 Ultra fingerprint looks much bigger then the S21, are they both the newer qualcomm sensor or only the one on the Ultra?
@@Falko87 no not sure, someone said they believe there is one version for UAE but it's not confirmed yet, they will let me know once it arrives to them
yes you will need this part: www.ebay.com/itm/275067626668?itmmeta=01HPH0TBA7C927MADVM6530WK7&hash=item400b4ee4ac:g:-N8AAOSwLSdkTBwp&itmprp=enc%3AAQAIAAAA4BANqNhbk1DzzX0JBTniPYy7LQ4yGQJmjELhK4aqVmeJGoXXXpjZXZUL%2BW%2BJwpiM65CeoazDm5IG4mVgPjXamHRDctRVCSITlYu7%2BWsrZ7KEgP%2FCMQshDbWwMiREM8Pe1uLPKTcMQS5Gk%2FPwI4C5k1Tz26SFFh3LYYAYm93Q8j0Eergc37zYP6ZrkNCsUUW%2FsM1sMrRbMdY7Jbq30xthg2%2F2LbAroYsBSo5Ab87BY8lM3kDxVsQxa4krl4e7gvPJ7boI9%2B%2BFrYvJwTM2TMOtuhjDOPFKWBv3vvFudNV6PStz%7Ctkp%3ABFBMnLXpoLRj
A bit late to the party but here I am, wondering if I need to remove the sub board if I'm replacing my battery? Will those flat wires bend up out of the way enough or should I completely disconnect/disassemble?
there are pre cut adhesive made for this phone to use to re apply the back, or most replacement backs will come with the adhesive pre installed to the back glass. You can also watch the video I did on how to install adhesive on smartphones to get a better idea.
Great teardown and explanation, congrats for being the 1st person who done teardown for both S21 models. I'm curious about overheating issue in SD888,does exynos version feel overheating to you when running heavy so far?
Surprisingly i watched few video the s21 with exynos variant has no heating issue finally samsung has fixed this issue and upgraded their exynos this time its on par with sd 888
The cable you were not sure about, As a repair technician, I am pretty sure its for the s pen, since the ultra supports it. Take a look at the note series they have that. 👍👍
Thanks, yea probably. It had another smaller cable connected on the bottom corner of the screen so I assumed that would be for the s pen but won't know for sure unless I pried off the screen but don't want to break the screen, going to be using it still :)
@@PBKreviews Yeah Samsung is notorious for not allowing you to remove the screen without breaking it, that'd mean you'd need to get a new screen, and they probably don't supply them yet.
Good video, that cable you thought was the fingerprint sensor is actually the S pen digitizer that is located behind the LCD. Also the battery requires iso to sit for a little to be removed, that's why there is no tabs. Plastic playing cards = super easy removal after iso has been applied. They generally don't want to heat the battery ever since the Note 7 incident.
Ya iso works but gets messy sometimes and not a common thing an average person would have on hand. Also many phone manufactures use adhesive and pry tabs that don't require heat. You can pull up and pry the battery off fairly easily with no heat so not sure why Samsung refuses to use them. As for the S pen your right, I realized it after the video. :)
Just what I needed for replacing the USB C port and SIM reader card after our Ultra 21 stopped charging with a cable and also started reporting No SIm card. The part was only $9.25 from InjuredGadgets and watching your video made it easy to replace. Thanks!
Is this recommendable to do at home? I have tiny water droplets JUST behind the lenses of my camera, but no further inconveniences, nor any particular damage. . . Well, except that I dropped my phone (in a shockproof case) on the ground and got a crack on it I didn't know about because it's under the case. Then, I submerged just the top quarter of it in the pool to record videos, but I assume that the water droplets got behind the lenses through the crack. Still, no particular damages other than that. My phone works just fine. Think I could take off the back plate just to wipe the lenses real quick? Please, let me know! :)
@@PBKreviews From I've read so far the main camera does have a fisheye blur at the edges of photos though, which is probably due to the smaller 24mm lens as opposed to the 26mm lens on the Note 20 Ultra. Fisheye blur has a very predictable blurring pattern, so hopefully Samsung adds an algorithm in an update the blur. Other than that it's an amazing phone, and I love that they did apply cooling solutions for the Exynos version this time around.
Hi its me again. So you can expect what I am going to say.. WHOOO CLEAR PHONE IS A DEFINITE POSSIBILITY! Also, at 7:33 that Flex cable is for the S Pens to work. Note phones have them so I'd expect that to find its way here
I'm SO glad the S21 Ultra Exynos has the graphene vapor chamber, unlike the Note 20 Ultra Exynos, which had... nothing, just a layer of whatever it was to protect the oled panel, while the Note 20 Ultra Snapdragon had a copper plate. What makes the most sense as to why the cable isn't removable, might be because the S21 Ultra *may* have had problems with the flex cable loosening the side it's now soldered onto the screen assembly, but you know, that's just speculation. Overall it seems like it's solid build quality and well-thought out internals.
What's the best way to remove moisture from a device? I'm more than capable of disassembling/reassembling a phone, but I would prefer to only mess with what is needed before the desiccant step.
Any of the ways of removing the moisture are pointless, because that won't help remove any of the corrosion inside from the moisture on the chips or connectors which will eventually lead to the phone shorting and parts not working anymore. Best is to take it apart, disconnect the battery, dry/clean out any moisture or water and then brush off any corrosion around chips or connectors with a small brush like a tooth brush. Then assemble it again.
Where is the memory bank? Where all pictures and things are stored? Is it integrated in the main board or is there a own "modul"? Im trying to save data from some samsung s21 ultra phones that ive broke by buying a new one and are planning on removing the backside on the new one and transfer just the memory part from the broken phones so i can get into the phones and transfer the data to my computer. The broken phones are scrap but i was hoping its possible to use just the main board/memory parts in a working one. Is this possible? Thank you
@@PBKreviews Okay. But i ment the whole main board. On the broken phones i have the mainboards seem to be okay its the charging/screen and sub board thats damaged from voilence. Mainboard looks okay so i thought i could just put those broken phones mainboard into a working phone and have all data back so i can transfer it into a computer? If i switch just the mainboard all data is still there?
Does the shape of the haptic feedback vibration motor matter? Cause I think the circular and square ones aren't as great as the rectangular ones (Apples)
Question. I'm getting a replacement from assurant because of black screen (lcd?). I'm pretty sure I will be receiving a refurbished phone. The problem is that they want my original phone. I am not happy to send a practically new phone in exchange for refurbished phone parts. I am looking to swap my original parts into new screen. Am I able to take all parts (most importantly the processor and memory etc)? Do you know if refurbished phones have lesser quality parts?
You can take all the parts from the old frame and move it over to the new (your memory/storage is soldered onto the motherboard), however you would need to re-apply new adhesive to your back plates to re attach them to the frame. Also you would have to make sure not to damage anything in the process :). I mean sometimes the refurbished units can have issues but compared to how refurbs were back in the day, I would say they are better now.
@@PBKreviews if I were to swap, would my IMEI still be the same? I would like to take their screen and but keep my parts. Just don't want them assuming IMEI is different if I take my original motherboard
It's glued down with some sort of dry in place glue to prevent water or dust getting in. You can pry the camera off but there is a chance of damaging it and rendering that camera useless. If you are replacing it then it wouldn't matter.
I saw some coolant inside the copper layer of ( S10+), of course after it opened What about graphite? Is there any liquid in it for cooling ?? thank you
Excellent video! I also liked your other video on the s 21 QUESTION PLEASE... I just looked at the S21 ULTRA at an electronic store here in the states, the back sounds like it's plastic but I noticed that you tap the INSIDE of the cover with your nail and it sounded like it was glass. IS THE BACK PLASTIC BUT THE INTERIOR MADE OF GLASS? I know that sounds like a stupid question
It's a type of glass, not like a glass you would find on a car window. Its all one material. If you compare it side by side to the S21, you will see and feel the difference. Also Thank you.
Hi, i have an old S21 that is broken bad, cracked in an angle of 10 degree. I was wondering if i could get out the data? I ask myself if i could get out the HD en boot it up on pc or something? The crack is under the lower camera from left to right.
All depends if the motherboard inside is damaged/broken or not. If not, you can put the motherboard into another working screen + frame assembly and make use of it. But you would need it to be working and use a working screen and such to be able to connect to a computer to transfer data.
I haven't used it much yet, but so far so good. I do like the build quality and feel. It's a bit heavy but I like it, more sturdy and strong. Feels premium.
Can placing the SIM card slot Pin in the bottom microphone hole cause damage? My mic works fine just worried about any possible sealants, meshes or layers between the mic and the hole. I pushed gently didn't apply any force, just wondering in case i do it again
Same here, when I saw how the back glass curves around rear camera glass assembly. I was worried about possibly cracking the back during removal in the future.
@@matta6991 my fear was in how the front housing was assembled. It looked like the rear cameras were built into it and couldn't be removed or replaced. That would make any repair very expensive, and the front assembly would've went from$250-$300 to $600-$700.
Ineed help please, I have to move over the front camera, and that right top corner area what looks like a square and has a J mark on it in your video. Looks like i need a different screwdriver for that. what size and type of that screwdriver?
So if I need to replace my motherboard (which I do), which one do I need to replace? The smaller or larger one. My S21 Ultra has 2 known issues that are due to a bad motherboard (various phone crashes & no cell tower signal. Sim card works in other phones but will not text or call out unless I have wifi from another source).
big thumbs up for the mmwave info .... just to let you know that the GCC Version has a dual sim slot and micro SD card but i'm not sure if that Exynoss has a mmwave antennas or not ...i pre order my device from UAE ....is there an app that can tell me if my device has a mmwave antennas or not ??
Thanks. Which one is the GCC version? I don't think there is an app that would detect if there is mmwave antennas installed or not. Only way I can think of would be to take the back plate off to check, or to take an X'ray scan of the phone to see if the antennas are there or not.
@@smalzalzalah So the GCC version of the S21 Ultra comes with micro sd support as well? That's good to know. When you get it, let me know the model number on the box. You would need to have some sort of Xray scanner. I haven't personally every done it but seen people do it on phones before. If you can get me the direct website link to the samsung page where the version you ordered is, I can try n see if I can dig up if its in the specs or not.
@@PBKreviews the model number is SM-G998BZKHMEA ...i order it from www.samsung.com/ae/smartphones/galaxy-s21-5g/buy/ ...keep in mind you can only order it if you have an address in UAE ....if you find an xray device on amazon please let me know
Did i damaged the water proofing of my s21 ultra when I accidentally poked with force the mic at the bottom? Thanks for the answer. Im sick worried. I just have the device for 6days now.
Hi there. I'm wondering, can you tell me if there is anything i can do about the weak and hollow feeling due to the back of this s21 ultra. I noticed before that some units have this issue more than others so surely there must be something i can do by removing and putting the back panel back onto it right ?
Hi, I'm not sure removing it and placing it back on would change anything. Sometimes they leave some room for the battery to be able to expand and contract during charge or use when it heats up to prevent damage to the battery or phone.
Hi. I have a Samsung s21 ultra SM G998B/DS. I replaced the LCD screen and after that the phone has not cellular signal. Only a circle with a diagonal line. I did hard reset• Update software to android 12. Partition reset. Changed battery and charging port. Moved the gammel gps antenna to the new screen. Nothing work. Could be the signal flex cable or logic board or a automatic system to turn off radio signal? Need help
Hmm. Not too sure, if you reset everything and still doing that, only thing I can think of would be the sim reader is damaged or a resistor or chip got damaged on the board but if the sim reader was damaged it would just say no sim.
I saw on another video that this issue is because you would have to move your original antenna into the new phone/screen. I'll try to find the video clip and post a second comment
I know that when you insert the sim tool through the hole of the microphone it will not be damaged, but could you explain if there is something in the hole and also what it hits at the end when you insert the tool, clearly something feels that there is inside of the hole.
There is a filter above the hole which covers the opening that leads to the mic. But there shouldn't be anything else in the hole aside from the curve in the frame that leads up or down to the mic so technically you should only be hitting the frame with your sim eject tool. The mic would not be touched since it sits above the hole.
@PBKreviews: Accidentally inserted sim tray ejector pin in to the mic hole of my Samsung S21 Ultra 5G. Pressed hard few times. Noticed Later. Is there any chance to get the water resistance damaged because of it?
Accidentally I inserted SIM ejector tool inside the S21 Ultra microphone hole. I also applied some force in an effort to push out the tray. Although, the phone is working OK so far. Did I break something inside? Microphone / Mesh / Water protection. Kindly clear my doubts. Thanks!
@@PBKreviews I have two doubts that no one has been able to explain, they only say that there will be no damage to the cell phone but they do not explain if there is something in the hole of the microphone and they do not explain what the tool bumps into when it enters the microphone.
@@PBKreviews Thank you (this is a mic then, not speakers on the upper section?) I checked, everything works, sound works all is good but I got panicked.
Thank you for the video, but I have a question for this model, is it normal that when shaking the phone laterally, a noise is heard as if parts are slightly moving or loose?
Lovely video, so professional. Can you tell me if both models the Exynos and the Snapdragon use the same Loudspeaker? I mean the bottom one. Thank you.
Pls also do a S21+ teardown if you had a chance.. To see if its internals are much closer to the ultra or the regular s21 or any differences.. I can see that the ultra actually has a bigger loudspeakers and fingerprint assembly ..great vid Keep it up🤩🤩
@@PBKreviews I think the reason the topside doesn't have the foam balls is that it might help with the stereo balance, since it's closer to middle than the bottom speaker The foam balls are super gimmicky anyway.
@@checkyourfax perhaps they try to equalize the sound quality between all the sizes, as you can see the ultra has bigger main bottom speaker assembly than the regular s21 which means bigger magnets.
Helo sir im using the snapdragon 512 gb unlocked version of s21 ultra nd unfortunately my phones diplay got cracked nd im planing to replace that with my T-Mobile locked s21 ultra. Is there any problem if i try to replace the whole board to the to T-Mobile s21 ultra displace casing include the camera modules? Pls suggest be a good adhesive tube for sealing the back after fixing
Yeah you should be able to move the main board over, just also move the motherboard plastic cover (which has antenna lines drawn on it) as well as the speaker assembly with plastic cover on bottom (which also has antenna lines on it) and the sub board/charger port board to make sure all the parts will be compatible with the unlocked version motherboard so you don't run into signal issues. As for adhesive for the back, here is a link for one: amzn.to/475pdzF
I was wondering why would a 5G phone be without 5G antennas installed? Is this just for international versions or US as well? Thank you for all your work.
There are different kinds of 5G networks. Only the mmWave 5G networks require the additional antenna assembly. Most networks in the world use sub 5G which doesn't use those antenna, so that's why some versions will be missing those antennas since the region it is sold in does not use that type of 5G network. Still is a 5G phone.
Thanks for THE best teardown! According Samsungs website the exynos 2100 have 5g mmwave built in. Modem 5G NR Sub-6GHz 5.1Gbps (DL) / 1.92 Gbps (UL) 5G NR mmWave 7.35Gbps (DL) / 3.67 Gbps (UL) LTE Cat.24 8CA 3Gbps (DL) / Cat.22 4CA 422Mbps (UL)
It's possible the certain region you are in comes with support for the mmWave. Most international markets don't use mmWave so most exynos versions won't come with it. Just curious, which region is that exynos 2100 from?
Oh ya I didn't think about that, you'r right its possible its for that. But there was another cable on the bottom of the screen connected to it, might be that also not sure. Didn't want to pry off and break the screen. :)
It has the standard 5G antenna, just not the mmWave 5G that Verizon in the US uses. I believe there is a few other countries which a carrier that may use mmWave 5G but most don't.
No since the networks there don't use 5G mmwave. It doesn't affect the standard 5G signal strength. For example lets say its 4G vs 3G antenna. If the networks in EU dont have 3G, it wont slow the 4G or degrade the 4G strength. So basically there is no negative to not having it, just wont work for any carrier that uses mmwave 5G technology (which there are very few carriers that do).
I'm not sure if these button pop out or need to be pushed in. But the volume keys flex cable which has the clickers that register presses is ran through the midframe, so if that needs to be replaced, you would need to pry the screen off as well which would pose a high chance of damaging the working screen.
@@PBKreviews I popped it out with exactly knife. Volume up clicker was broken. Popped new one in and it's good now. Have better control than trying to use razor blade.
@@gun6734 What would be the point of me doing that? The mic sits above the hole. Me putting the sim eject tool in there is pointless would not change anything.
the rest of the world doesn't have 5mm wave. only the US so far widely supports it. the US version supports it. It is the same for iPhones, only the US variant has the 5 mm wave support.
Hello! I used to have a S21 Ultra with Exynos and now is totally non functioning (battery almost exploded) and I wasn’t able to recover any data. Can you tell me where the memory storage is located? I managed to disassemble everything but I couldn’t find it. Thank you!!
The onboard memory is not user removable. Its soldered to the main board under one of the covered shields. You would probably need to replace the battery to gain access to your phone data.
Nice job! Another method I’ve tried to get the Samsung batteries out is while heating the screen on the heat pad I use a suction cup on the battery, a little ISO alcohol on the right and left gaps of the battery and a plastic pick for the bottom of the battery and that usually works really well for me.
Well I stuck the sim removal pin in the wrong hole. Felt some resistance. I'm horrified that I may have damaged a microphone? Great video, was hoping to see what was down there...thanks.
