Vivo officially launched the Vivo X20 Plus UD on January 24, 2018. The phone is the first smartphone with an under-display fingerprint sensor in the world. It features a 6.43-inch full screen with a resolution of 2160 pixels by 1,080 pixels. It is powered by an octa-core Qualcomm Snapdragon 660 processor and 4GB of RAM. The phone features 128GB of internal storage that can be expanded up to 256GB via a microSD card.
The phone has received much attention from the public since it is the first smartphone to adopt in-display fingerprint scanning technology worldwide. Now, we will start the teardown of the Vivo X20 Plus UD to see its internal design.
First of all, remove the SIM card tray.
We can see two hexagonal screws at the bottom. After removing two screws, we start to remove the screen and back cover. It is a little difficult to remove the back cover since the back cover is fixed both with snaps and glue.
After successfully removing the back cover, we can see snaps on its verge. The verge part of the back cover is fixed by glue.
Here is the motherboard. All the BTBs on the front of the motherboard are fixed by the cover. The motherboard is covered by graphic heat dissipation paste. With the Qualcomm Snapdragon 660 processor, which has good control over heat production, the Vivo X20 Plus UD has excellent performance in heat dissipation.
Remove the cover to take out all the BTB. There are two covers on both sides. The cover on the left is a U-shaped cover, which can fix a large area.
After removing all the BTBs, we can remove the motherboard. The back of the motherboard is covered by copper foil, which makes the motherboard have good heat dissipation performance.
The phone uses a traditional vibrator motor instead of a linear motor, which has better performance.
Next, we will continue to disassemble the vice board. There are many FPCs on the vice board, so we need to remove them one by one. The USB charge connector is independently fixed and connected to the motherboard via a single FPC.
Remove the sound box, and then the small board can be seen. The 3.5mm earphone port has occupied a majority of the small board. After taking out the small board, we find that the screen ribbon cable is connected to the motherboard by BTB via the phone bottom. This means that the Vivo X20 Plus UD features are installed in inverted order.
The motherboard is fully covered by graphite paste. All the BTB ports are surrounded by foam.
It is all the components of the Vivo X20 Plus UD.
Summary
According to this teardown, the Vivo X20 Plus UD has excellent workmanship. The smartphone has excellent performance on component fixation and heat dissipation. However, after this teardown, we can’t remove the under-display fingerprint sensor module. We have taken a photo of the screen. The square part marked with the red line is the under-display fingerprint sensor module. By the way, the phone is priced at CNY 3,598 ($546) and has been on sale since today.
