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Mi Mix Teardown - Piezoelectric Speaker Test - Screen Replacement

2016-11-21
it's time to tear down the me mix the new bezel a smartphone from show me as you can see this phone has no earpiece I'll explain how and even let you hear the audio quality of a phone call later in this video as well let's see what this thing is made of remember that this whole phone is made out of ceramic a super hard and brittle material that scratches at an 8 on Mohs scale of hardness because of this the back is actually pretty hard to remove even though there is no adhesive it is held in place by a series of snaps and since the frame and back don't flex my then pry tool struggles to get inside I was eventually successful though and the back panel pops right off it's nice not having to use a heat gun for a change the fingerprint scanner has an accordion style ribbon cable attaching it to the motherboard so be careful not to rip that there are 10 regular Phillips head screws holding down the plastic shield over the mainboard keep your screws organized and I'll be linking a tool kit and replacement parts in the video description of this video once that protective plastic is off the main board we can unclip the fingerprint scanner just like a little Lego then the rear flash and camera lens on the back panel are also replaceable at this point it is important to disconnect the battery first then we have the screen ribbon on the left and the front camera and the power button ribbons and the extension ribbon for the charging port all unsnapping like little Legos this clear plastic is actually the earpiece right here along the edge and I'll get to that in just a second to remove the 4300 milliamp hour battery it has some of the magical pull tabs at the bottom that easily slide out the adhesive from underneath the battery unfortunately these are also very easy to break and if they do break you must commence the pry of shame taking immense care not to puncture or bend the battery during this pry because the batteries do catch fire when punctured also watch out for these extension ribbons under the battery if you're wanting your phone to still function after the battery removal here's the rear 16 megapixel camera for the me mix and judging by the fact the lens does not move around inside of its housing like on the Galaxy or newer iPhones I'm going to say that it does not have oh is which is unfortunate xiaomi has used OIS on some of their other phones though one more wire cable to remove and then there is little screw holding in the vibrating piece of electric earpiece I should have taken out the SIM card tray before I started this teardown but sometimes I get a little too excited the motherboard is held down by a little latch on the top left corner so unclip that and the motherboard pops out now you can see where the processor sits and some of this thermal rubber stuff to help the heat dissipation let's look at this piece of electric speaker this is the thing that makes noise by vibrating the actual frame of the phone so during a phone call no matter where your ear is along the frame on either side front or back of the phone you can hear sound emanating from the device it's rather weird I knew the most-asked comment in the comment section would be hey Jerry how does this vibrating earpiece sound so don't worry I'm going to let you hear for yourself so this is what the earpiece sounds like from the iPhone 7 this is the standard earpiece that has little tiny speaker inside and this is what most every Android and iPhone have inside of them and this is what the piezo or believes electric speaker sounds like inside of the remix the speaker is making sounds by just vibrating a little bit doesn't actually have a speaker inside of it like most other phones do so now you can tell the sound difference between the two phones while both speakers are clear and understandable to me the me mix sounds a little bit like the other person is on speakerphone when they actually aren't but it's still a pretty cool invention and it's fun to see innovation in the cell phone world the charging port shroud is held down by five more screws I'll remove that the shroud has the loudspeaker attached to it as well unclip two more ribbon cables and the signal wire and we get to look at the bottom microphone and the USBC charging port it's nice that the charging port is replaceable the five megapixel front facing camera is also down here at the bottom of the phone strangely enough and it has the longest ribbon cable that I have ever seen attached to a camera it wraps all the way up the side of the phone to the main board above the battery pretty crazy one of the things I mentioned during my drop test video was that the ceramic frame of the phone would be damaged easily during drops the good news is the frame is absolutely replaceable with 12 silver screws holding it in place it can pop off from the frame of the screen replacement parts of this phone are going to be hard to find since this phone is limited production but it's good to know that Xiaomi is planning for the future if they mass-produce ceramic phones the frame is replaceable very smart they really need to include a rubber barrier between the frame and the screen though to minimize damage transfer to the front glass Turing drops speaking of the screen this is it it is adhered to the mid frame and hopefully Xiaomi will sell replacement screens already attached to the mid frame but if they don't you'll have to remove the old display from the mid frame and attach the mid frame to the new screen I'll link any replacement parts that I find in the video description but like I said before they are going to be difficult to find I'll get those twelve screws around the ceramic frame in place and then the charging port can go back in its slot down here at the bottom microphone holes most of them are for decoration the mic only fills one hole so make sure that particular hole is never plugged up get that wire cable plugged in along with the two ribbons next to it and the front-facing camera the plastic loudspeaker and his five screws go down on top of that then the piezoelectric speaker gets set down before the motherboard does there is a little pin and a screw hole that guide it in place the motherboard can be set down after that clipping in the wire cable the extension ribbon down to the charging port the screen ribbon and the power button ribbon and the front camera ribbon then the rear camera can also get snapped in and finally the battery before putting the protective plastic layer in place make sure that the fingerprint scanner is also clipped in just like a little Lego tin screws later and you can take the ceramic back and snap that into place make sure that the phone is working first because getting the back panel off if you forgot something is a real chore overall the show-me me mix has a solid build the earpiece is very interesting and I'm super glad that the ceramic frame can be replaced I wish the camera had OIS but at least the phone is good looking my channel is full of teardown reviews like this one bonus points are following me on Instagram and Twitter I post most my behind the scenes stuff over there thanks ton for watching I'll see you around you
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