April 20, 2021


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OnePlus 8T Disassembly Report: Fast Charge with Double Cell Makes it More Efficient in Heat Dissipation

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The OnePlus 8T is a new flagship product launched by OnePlus in the second half of 2020. The combination of 4500mAh large battery and 65W fast charging meets the daily use needs of the majority of users. The flagship hardware with the body of 188G and 0.33inch also achieves the smart balance from performance to experience. Most importantly, the OnePlus 8T, as the “super screen flagship”, also promotes the ecological development of high-frame content through a 120Hz straight screen.

How about the performance of its internal technical details, which are so strong on the outside? Today we’re going to take the OnePlus 8T apart to see if its interior meets the flagship’s high standards.

Before disassembling the one plus 8T, we need to shut it down and take out the SIM card. The card holder is located at the bottom of the phone and has a dust-proof and water-proof rubber ring inside, which is designed to prevent dust or water vapor from entering the phone through the SIM slot and affecting usage.

Like the previous OnePlus, the 8T still uses a sandwich structure. We can place it on the preheated heating platform. After feeling the phone is slightly hot, we can use the pry bar to pry open a small gap in the bottom, and use the machine piece to slide around the phone to cut the glue. In the process of dismantling, it can be seen that the internal glue amount of the OnePlus 8T is relatively large, and there are additional adhesives on the top and bottom of the mobile phone. This design can greatly improve the sealing of the whole machine.

The interior design of the rear cover plate of the OnePlus 8T is relatively simple. The design of cushioning foam can reduce the damage caused to the mobile phone by impact. With the design of cooling film, the heat inside the fuselage can also be released to the outside of the fuselage as soon as possible. On the top of the back panel of the phone, you can also see the corresponding opening of the camera, flash and light-sensitive components on the back.

After the rear shell is removed, the main body of the 8T is displayed in front of us. It is not difficult to find that the interior design of the one plus 8T still follows the traditional three-stage structure. Of course, the overall design of the motherboard has also been slightly adjusted due to the OnePlus 8T moving the position of the back four-shot from the middle to the left.

After removing the nine screws that hold the cover plate, we can remove the cover plate of the main board. The cover board of the main board has an internal heat dissipation film and an external NFC coil, which is convenient for us to simulate the use of mobile phones as NFC cards such as public transport cards. In addition, the OnePlus 8T’s back brightness sensor is also hidden next to the camera module, and it supports the highest level 8192 brightness adjustment currently available on Android, which ensures smooth screen brightness transitions.

After removing the cover of the motherboard, we can remove the 16-megapixel front-facing lens and the quad-camera module on the back by removing many rows of wires connecting the motherboard. The front lens of the 8T features a 16-megapixel SONY IMX471, the same as the 8T. On the back are the 48-megapixel main camera (IMX586) + 16-megapixel ultra-wide-angle lens + 5-megapixel macro lens and 2-megapixel black and white filter lens, among which the parameters of the main camera are the same as those of the OnePlus 8. Of course, the four lenses are fixed together, which ensures some stability.

After the screw fixing the main board and the same axis is removed in turn, you can see OnePlus 8T main board. Overall, the motherboard of OnePlus 8T is highly integrated, with cooling stickers on both sides. In addition, the OnePlus official also provides additional cooling silicon grease for SoC, which ensures that the heat of the whole machine can be quickly dissipated to the outside of the body.

It is worth mentioning that the One plus has protective rubber rings around many BTB connectors, which can greatly reduce the damage of important components in the body of the phone after water.

To further disassemble the motherboard, we need to tear off the cooling stickers on both sides of the motherboard. In order to further improve the heat dissipation capability, the surface of each internal component of the OnePlus 8T is covered with silicone grease. Such a solid material also lays a solid foundation for good heat dissipation effect. Also, we can see inside the phone the distance sensor with the light sensor, the top speaker and so on.

After the top motherboard is disassembled, we will next disassemble the lower sub-board. First, remove the screws on the surface one by one to remove the auxiliary protection plate of the integrated speaker. Then, remove the wiring and the coaxial interface one by one, and remove the auxiliary plate after unscrewing two screws.

The sub-board is integrated with microphone, SIM card slot, etc. After the sub-board is removed, type-C interface wiring can be removed. It can be seen that the type-C interface surface and speaker position of the OnePlus 8T have red apron, which can also prevent dust and moisture from entering into the mobile phone and affecting its use.

After further disassembly, we can also see that OnePlus 8T X-axis motor, the small linear motor below, provides us with a more realistic sense of vibration.

Now comes the final step in disassembling the battery. The OnePlus 8T battery also has a quick detach design. You only need to pull the quick-detach strip on both sides of the battery to remove the battery.

The OnePlus 8T supports a fast charge, which can be filled in about 38 minutes after our measurement, thanks to its dual cell design. The two batteries of One Plus 8T are both 2250mAh and 4500mAh when combined. The cell comes from ATL, the manufacturer is Xinwangda, which is also known to us, and the battery quality is guaranteed.

When we further peel off the sticker at the bottom of the battery, we can also see the VC soaking plate hidden under the TV. OnePlus says it has increased its heat dissipation area by 285%, making it more uniform. We can also see that the VC hot pad can quickly distribute heat generated by large heating users such as Snapdragon 865 to the middle of the body, which ensures that the palm of the hand will not feel too hot during daily use or landscape playing.

Motherboard high integration is also a big challenge for heat. Thanks to the large area of VC soaking plate, coupled with the cooling silicon grease graphite cooling sticker, the cooling capacity of the OnePlus 8T did not disappoint us. After playing the game, OnePlus 8T surface temperature also did not appear too concentrated phenomenon, which is inseparable from the solid internal materials.


Write in the last

In terms of internal structure, the one-plus 8T adopts a mature three-stage design, which is not difficult to disassemble. At the same time, thanks to the dual cell design, the charging efficiency of OnePlus 8T is greatly improved. Even for users who use it a lot, the official 65W fast charging can also quickly satisfy their needs. For users who like phone games, the 120Hz straight screen and internal sincere cooling design can also ensure a long time playing mobile game experience. After the actual measurement, the use of OnePlus 8T games will not appear hot, and the heat is not concentrated early palm can contact the position.

As one of the “super screen flagships”, the OnePlus 8T shows us what smooth is through a 120Hz straight screen. However, from the perspective of internal disassembly, this phone is also full of sincerity in terms of “battery life” and “heat control”, which is a flagship product with no defects from inside to outside.

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