OnePlus 5T Teardown

There is no doubt that OnePlus 5T is a very worthwhile phone to buy. But before buy it, we have a question: how does it workmanship? Here we disassemble an Oneplus 5T to explore its internal structure and workmanship

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First of all, remove the SIM card tray.
It supports dual card dual standby.
remove SIM card tray

No rubber seal ring is found on the top of SIM card. After all, it is not a waterproof cell phone, but after dismantling, you will find it has excellent sealing performance.
SIM card tray

Remove two screws close to the USB Type-C port.
remove back cover

Insert a pick under the display assembly and slide the pick to unlock the snaps.
remove back cover

At this point, you can’t remove the back cover, because the fingerprint cable and the USB Type-C port cable are still connected to the main board.
remove back cover

Remove one screw securing the metal plate.
Disconnect the battery connector and USB Type-C port cable from the motherboard.
disconnect battery connector

As you can see, there is a ring of sealed foam inside the back cover, in addition to providing sealing performance, but also to prevent the back cover shaking.
back cover

The corners of the back cover are not thickened, the surface of the antenna is plated with gold to improve the service life and increase the stability of the signal receiving.
back cover

The fuselage still uses a classic three-stage layout, the structure is very compact.
Oneplus 5T internal picture

As with Oneplus 5, its USB Type-C module is still secured to the back cover, removing it by removing four screws.
USB Type-C module

You can see that this module also integrates a headphone jack, a rubber seal on the USB port, and the exposed circuit is also dispensing.
USB Type-C module

The headphone jack also has a black rubber seal.
headphone jack

USB Type-C module

There is also a module on the back cover, which is fixed by two screws
small module on back cover

small module

Remove all screws securing the motherboard.
Disconnect the RF antenna and main FPC.
remove the motherobard

Remove the motherboard.
remove the motherobard

The metal shield on the front of the motherboard is covered with graphite thermal stickers.
Oneplus 5T motherobard

The metal shields on the back of the motherboard also covering with graphite thermal stickers, including the SIM slot.
Oneplus 5T motherobard

Compared to Oneplus 5, its main camera aperture reached F/1.7, but unfortunately it still does not support optical image stabilization.
Oneplus 5T camera

Uncover the graphite thermal stickers, you can see, the main chips are covered with thermal grease.
Oneplus 5T motherobard

Its ROM and RAM chips are from Samsung.
Oneplus 5T motherobard

Uncover the graphite thermal stickers on the back of the motherboard, we found that the bare chip is also covered with thermal grease, some metal shield is also covered with a layer of thermal copper.
Oneplus 5T motherobard

Remove the screw securing the loudspeaker and remove the loudspeaker.
loudspeaker

The loudspeaker comes from AAC with a number of 171108A1.
loudspeaker

Disconnect the display cable, FPC and coaxial cable.
display cable, FPC and coaxial cable

Lift up the green tab can easily remove the battery.
Oneplus 5T battery

It’s comes with a 3.5V, 3300mAh, 12.70Wh Li-polymer battery.
Oneplus 5T battery

As you can see from the back of the battery, its battery cell comes from ATL.
Oneplus 5T battery

Oneplus 5T internal picture

Summary:
What leaves me deepest impression on the OnePlus 5T’s internal design is its excellent dustproof and water resistant capabilities. Although the OnePlus 5T hasn’t stressed its water resistant capability in its introduction, the phone actually has better water resistant capability than those which emphasize publically their good water resistant capability. Nearly all bare circuits have been covered with glue, and the parts around the connectors are firmly sealed. Most components with ports are designed with rubber seal. Therefore, I think that the OnePlus 5T can be immersed in the water for a short time and it can still work well. The phone’s body hasn’t been sealed by good glue and no seal is found in SIM card tray. That’s the OnePlus 5T’s deficiency in water resistant aspect compared with real water resistant smartphones.

The OnePlus 5T’s motherboard has high integration level, although not the top level. The smartphone has good thermal design. Lots of conductive thermal grease, cooling copper sheets and graphite thermal stickers have been applied. Fingerprint reader module’s connectors have been fixed by back case and the front camera’s connectors have been fixed by conductive sticker. Other connectors are fixed by metal plate. Such design can effectively prevent components from falling off so as to avoid malfunction of components.

Generally speaking, the OnePlus 5T is a phone with excellent internal design. In my opinion, such internal design makes the phone become much competitive in the phone market with regard to its price.

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