Galaxy S21 teardown and repair assessment - Interesting findings - Galaxy User Guide

Hi guys welcome back to another hugh jeffries video in this video, I am going to tear down Samsungs new galaxy, s21 smartphone and assessing its repair abilities to do this. I purchased two so that I can swap components around and see if there are any software locks to ban third-party repairs. We've seen problems that limit the third party repair in the latest Apple iphone 12 and Samsung Galaxy a51 models when parts are replaced. First up, we have this box which includes Quick Start Guide and Warranty Information. However, there is one essential item of the phone which is not included - power adapter. Many of your old power adapters won't work with this cable, due to its usbc connection. This terrible trend has the effect of making your old adapters obsolete.

I will remove the protective film over both camera lenses. I will power them on and setup both phones so we can verify everything is working before we take them apart right from the start. There are some differences between the previous generations of Samsung phones. It no longer says the model number on the splash screen and the interface looks slightly different. The sim card tray is next to the usb-c port. It lacks micro, SD card expansion and headphone jack. You want to make sure not to overheat the back panel, as it is made of plastic. After I insert my plastic pick in it I can use my suction cup to create a gap for it, and I can run it around the edges to loosen the adhesive.

You will want to be cautious of those three camera lenses as if putting your plastic pick too far could damage them, but with some precise prying we can get the back free. You can see quite clearly here that it is very flexible given its plastic material. It's time to get our next phone open, so I'll repeat the same process by heating it on the heat plate for a few minutes to soften the adhesive. I am happy to see the return of the plastic back. This plastic back won't shatter when you drop the phone, and from a repair perspective, it is safer to work on, as it won't float glass everywhere when you open up the phone that could end up in your fingers or eyes with the adhesive separated. This is a good thing, as it means you probably can fit a frame from a different model.

Screws we'll have a closer look at what that is connected to later on, I can remove 13 Phillips head screws from the upper speaker and antenna assembly, as well as the wireless charging module to remove the wireless charging module. A cable under the phone will also need to be removed before lifting it out of the phone. A closer look at those security screws they appear to be holding in an antenna if they were carrying out a display replacement on the s21 would require a tri-wing screwdriver. It is now time to turn our attention to the other Samsung galaxy s21. There I'll remove the motherboard where I can swap it onto the other phone. I will test the fact that any problems arise with replacement parts when I do this.

Motherboards have really decreased in size in the last few years, and this is no exception. It is a dual layer board which means essentially there are two motherboards together soldered. The led flash microphone and proximity sensor are soldered directly onto the board, which could complicate repairs if replacements were needed, while swapping the motherboards between the two phones. By doing this, I have literally changed every part of the phone, which means I'm simulating all the normal repairs. When I did this test on two brand new iPhone 12s, however, I had various messages about the display and battery not being genuine, lost the true tan and Face id. The battery said it needed servicing, and the cameras behave strangely with certain functions not working.

I also found problems with the Galaxy a51 fingerprint reader - not working correctly after a display replacement. We should Hopefully with this Samsung Galaxy S21 we don't have any of these issues reinstalling the motherboard. I can connect all of the Flex cables, install the earpiece and antenna assembly, reconnect battery and wireless charging module powering the phone. We see the samsung galaxy branding and to my surprise the fingerprint sensor is still working. Based on the imei and the color of the phone you can see that the motherboard has been replaced into the diagnostic menu. So we've established that this phone has no software locks on any of the hardware inside, which is awesome. We can now swap the cameras back to their correct motherboard.

I still want to dig a little deeper inside this phone and get a good look at that new sim card mechanism. Before we do that, I need to assure that the cameras are installed correctly. One small thing I found is that this metal tab on the camera must be on the top side of the motherboard. If not, it will not sit flat in the phone, guiding down to the lower part of the phone. I'll remove six screws which hold the speaker assembly in place. Removing this will give us access to our charging port and sim card tray I will need to remove three flexible cables from the phone. So you can see this time around that Samsung has used a separate detachable cable for the display. This configuration reminds me of some of google pixel phones.

It's unfortunate to not see an expansion slot for sd cards. This has me thinking - I wonder if you could flash the software and turn this phone into a dual physical sim model. It's a very common repair on smartphones, given the battery wears out over time. It's unfortunate to see that Samsung used a massive amount of adhesive, like we've seen in the past, even heating this phone to 120 degrees, the battery removal was still very difficult and I had to use a metal tool as I broke. While you can also remove the display from the frame, it's likely that it would get damaged in the process, and it's not common to replace the display without the frame attached already, but with our two smartphones in bits.

It's time to put them back together and they hopefully still work, with the battery in charge. Its original adhesive was strong enough to hold it in place a second time I'll reinstall the charging port and its three screws, as well as attach the three cables reinstalling the speaker, so I can fasten its six phillips head screws. After turning my attention back to the top of the phone, I can reinstall the motherboard and connect all of its appropriate flex to it. I can give the inside a little bit of a clean before we get the wireless charging module reinstalled after connecting its cable. All that's left to do is secure its five screws, I will repeat the same process for our other s21 and get everything back into one piece.

We're done, so that it samsung's new galaxy s21 is a phone, that is more durable than the previous model due to its plastic back. Every major component is modular and not paired with the device, making it repairable. If you watched my teardown and repair assessment of the A51 video, you'll know that the fingerprint on that phone stopped working after a display replacement. This is not a calibration issue and on that note this was a huge video of Jeffreys. If you like what you have seen hit the Subscribe button and consider checking out the Breakdown & Repair playlist for more videos. Also just like this one and if you're looking for any tips or what tools I use to repair devices be sure to check out my website, which is listed below the description..

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