Disassembly of Samsung Galaxy fold: the interior is extremely complex. Is the hinge the main cause of screen damage?

In this year MWC The show , Samsung officially released its first folding screen mobile phone ——Galaxy Fold, Has attracted great attention in the industry . But in recent days, , Samsung provides media evaluation Galaxy Fold But there are serious screen quality problems collectively .

There are signs , Several evaluation media tore off the protective film on the surface of the mobile phone's main screen , It may be the cause of screen damage . Samsung name Fold The protective film on the surface of the main screen is a part of the screen structure , Protect the screen , Avoid accidental scratches , If you remove the main screen protective film or add any adhesive to it , Can cause screen damage .

however , There are also evaluation media that have not removed the screen protector , But the screen , Even the hinge still has problems . So it seems , samsung Fold There is indeed a quality problem of verification .

At present, Samsung has begun to investigate the cause of the accident , And was forced to postpone Fold Time to market .

In recent days, , Foreign professional dismantling institutions iFixit Also for Samsung Fold Completely disassembled , Let's take a look at the internal structure of this mobile phone ：

▲ samsung Galaxy Fold It adopts a folding screen design , Have a piece 7.3 Inch 1536×2152 Collapsible inner screen with high resolution , In the open state , It's completely the visual sense of the tablet , The display area of the screen is almost S10 Plus More than twice of .

▲ Of course Galaxy Fold Open with iPad mini5 comparison , The screen is still much smaller .

▲ stay Galaxy Fold The upper right corner of the front of the inner screen is also equipped with two front cameras , Respectively 1000 Megapixel wide-angle lens and 800 Ten thousand pixel depth lens . however , therefore , The screen in the upper right corner of the inner screen has also been cut off .

▲ In addition to the collapsible inner screen ,Galaxy Fold One more piece 4.6 Inch 840×1960 High resolution external screen . When the inner screen of the mobile phone folds ,Galaxy Fold Will use the external screen of the mobile phone to work , It can realize all the functions of traditional mobile phones , And keep a very small figure , It can be easily held with one hand . Of course , Its fuselage is also better than S10 Plus More slender .

▲Galaxy Fold Equipped with S10 The same post three shots ：1600 Megapixel ultra wide Angle lens 、1200 Megapixel wide-angle lens and 1200 Megapixel depth lens .

▲Galaxy Fold In folded state , The thickness of the fuselage is really a little thick . There are speakers at the bottom of the fuselage 、 A microphone and USB Type-C Interface .

▲ Although the folding screen can bring a very good visual and portable experience , however , It seems that the current folding screen mobile phones have not solved the problem that folding screen will appear creases after folding .Galaxy Fold The folding screen inside has obvious creases after several folds .

▲ It's important to point out that , This is not the dismantling position .iFixit Express , The screen shaft here is easy to get gray .

▲ in addition Galaxy Fold There is also a large gap at the rotating shaft in the North , When folding , It is easy to roll external dust and small debris into the fuselage or screen .

▲ Slightly use a hot-air gun to the back of the fuselage （ In folded form ） Heating , After making the internal glue melt , The back shell can be easily opened .

▲ After the open , You need to remove the top wireless charging module first .

▲ The internal structure of the back of the fuselage in folded form . You can see the rear three cameras and the battery .

▲ Also by heating , Cancel the front outer screen .

▲ You can see , A chip on the back of the outer screen bears the words made by Samsung .

▲ Back （ Under the expanded screen ） There is a battery on the left and right sides of , They are fixed on the mobile phone with adhesive .

▲ The size of the front battery is 42.2 X 76.15 X 3.8 mm , The rear battery is 42.7 X 64.3 X 4.6 mm . The battery capacity is 2135 and 2245 mah .

▲ Post three camera module

▲ Next to the rear three camera module is the interior front two camera module

▲ In addition to the rear three shots on the back and the double shots on the inner screen , In folded state , There is another one on the front 1000 Megapixel camera （ Top right ）.

▲ There is glue around the interface of the left motherboard on the back

▲ The other side of the motherboard on the left side of the back , There are many chips on it ：

Red ：MPB02 607RDF 1911TXK, It may be a power management chip

Orange ：52D0S05 607W1R G1912R7D

yellow ：CS3SL40 A0IU1907

green ：CS40L25 BIAHI849

Blue ：ASL01 G1909 AAWA3 07R5Z

▲ Back right motherboard front , The main chips are on this side ：

Red ： samsung K3UHAHA 12 GB RAM, Below it is Qualcomm Xiaolong 855

Orange ： samsung （Samsung）KLUFG8RHDA-B2D1 512 GB eUFS Flash memory

yellow ：Qorvo 78062 It may be RF fusion （RF Fusion） modular

green ： qualcomm SDR8150

sky blue ：Murata KM9307057

Navy Blue ：Maxim MAX77705C Power management integrated circuits

violet ：IDT P93205

▲ The other side of the motherboard on the right side of the back ：

Red ：Skyworks 78160 Front end module

Orange ：Skyworks 77365 Power amplifier module

yellow ：Skyworks 13716 Low frequency front-end module

green ：Qualcomm PM8150 It may be a power management IC

sky blue ：Qualcomm WCD9431 Audio codec

Navy Blue ：Qualcomm QDM3870 RF front end module

violet ：NXP 80T17 NFC controller

Next , Come and disassemble the folding screen that has attracted much attention ：

▲ The screen bezel is fixed with only a little adhesive , Disassembling doesn't take much effort . But this design , It may cause this device to be used for a long time , These baffles will easily fall off , Then the screen is exposed and damaged . These borders are thin , They only cover 2MM Wide screen .

▲ The slender frame is obviously not soft enough , There is no way to fold with the screen , So it's divided into two parts .

▲ Hinge on the back （ left ） And foldable screens （ On the right side ）. The screen is connected to the motherboard through an ultra wide screen cable on the left side of the fuselage .

▲ The back of the flexible screen is respectively adhered to two thin metal plates , And the metal support plate is attached to the middle frame of the mobile phone , This allows the unbonded part in the middle to achieve a larger fold radius .

▲Galaxy Fold Protective film on the front of the flexible screen , According to Samsung , If it is removed, the screen will be damaged .

▲ The hinge has four spring-loaded bayonets , Two are fixed on the central shaft , One at the top , One at the bottom , You can lock the screen in “ an ” state . There is also a hinge in the center , It can drive a gear system , This can equally share the driving force at the time of deployment , Ensure that the two halves of the mobile phone are launched synchronously . in general , This system is well designed , And it looks strong and durable . in addition , The flat cable connecting the mainboards on both sides is also well fixed on both sides , And a certain space is reserved , It can be unaffected when the screen is bent and folded . however , If used for a long time , It may bring challenges to the reliability of the cable .

On the top of the back side of the hinge , There is a circular sliding hinge , There is an elastic mouth under it , The expanded state of the mobile phone can be fixed .

iFixit Express , Although Samsung claims that its mobile phone can guarantee 20 Fold ten thousand times without problems , And the hinge system is really reliable , However, Samsung did not properly protect this set of hinges , And there is a large gap on the outside , This also makes the outside dust 、 Small impurities can be brought between the screen and the metal back plate with the rotation of the hinge . And when the screen expands , Debris may damage the fragile screen . This is also Samsung Fold A major problem facing .

▲ Finally, let's take a family photo

iFixit After disassembly , For Samsung Galaxy Fold The repairable score of only gives 2 branch .iFixit Express , although Fold Many internal components are modular , Can be replaced separately , But it's not implemented collapsible , Its existing design may make internal devices over time , Wear occurs , In addition, the hinge design makes it easy for external impurities to be brought into the interior of the fuselage screen , Thus causing damage to the screen . in addition , There is only one flexible film on the screen surface , Such protection is obviously not enough . There is also the risk of damage to the front and rear double-sided glass panels when they are disassembled because of the too strong adhesive , It also makes it difficult to disassemble the battery , And it may damage the screen bracket .

edit ： Smart core - Woods