Vivo 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 screen with a resolution of 2160 x 1080 pixels. It is powered by an octa-core Qualcomm Snapdragon 660 processor and comes with 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 under-display fingerprint scanning technology worldwide. Now, we will start taking apart the Vivo X20 Plus UD to explore its internal design.
First, remove the SIM card tray.
There are two hex screws at the bottom of the phone. After removing the screws, start removing the back cover. Since the back cover is secured with both clips and glue, the disassembly process is somewhat difficult.
Use a suction cup to create a gap between the screen and the back cover. Insert a plastic pick, then slide the pick to separate the back cover from the phone.
After removing the back cover, you can see that there are clips at the edges. The edges of the back cover are secured with glue.
All the connectors on the front of the motherboard are secured with metal plates. The motherboard is covered with thermal paste. It features a Qualcomm Snapdragon 660 processor, which excels in heat management, making the Vivo X20 Plus UD perform exceptionally well in terms of heat dissipation.
Remove the screws securing the metal plate, then use tweezers to remove the metal plate from the motherboard.
Disconnect all connectors and remove all screws securing the motherboard, then use a pick to remove the motherboard. The back of the motherboard is covered with copper foil, which provides good heat dissipation performance.
Close-up of the camera modules.
The phone uses a traditional vibrator motor instead of a linear motor, which has better performance.
Next, we will continue to remove the vice board. There are many FPCs on the vice board, so we need to remove them one by one. The USB charging port is a separate module connected to the mainboard via a flexible printed circuit board.
Remove the screws securing the sound chamber, use tweezers to pry up and remove it, and then use tweezers to remove the circuit board under the sound chamber. The 3.5mm headphone jack occupies most of the space on the circuit board. After removing the circuit board, we can access the screen cable.
The motherboard is fully covered by a graphite sticker. 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 in component fixation and heat dissipation. However, we were unable to remove the under-display fingerprint sensor module after the teardown. 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 today.
