SafeRooting
vivo X21 UD
vivo

vivo X21 UD

Released: 2018, MarchPrice: About 550 EURStatus: Available. Released 2018, March

Root Support Available

Bootloader unlock, Magisk root, recovery notes, and expert support are available for this device family.

Full Specifications

OSAndroid 8.1 (Oreo), Funtouch 4
CPUOcta-core (4x2.2 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
GPUAdreno 512
NFCNo
SIMNano-SIM + Nano-SIM
USBmicroUSB 2.0, OTG
Dual12 MP, f/1.8, 1/2.55", 1.4µm, dual pixel PDAF, 5 MP, f/2.4, (depth)
Size6.28 inches, 98.4 cm, 2, (~85.2% screen-to-body ratio)
TypeSuper AMOLED
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
BrandVivo
BuildGlass front (Gorilla Glass 3), aluminum back, aluminum frame
Modelvivo X21 UD
PriceAbout 550 EUR
RadioFM radio
SpeedHSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
Video1080p@30fps
ColorsBlack, Ruby Red
ModelsX21UD A
Single12 MP, f/2.0, (wide), 1/2.8", 1.28µm
StatusAvailable. Released 2018, March
Weight156.2 g (5.50 oz)
ChipsetQualcomm SDM660 Snapdragon 660 (14 nm)
SensorsFingerprint (under display, optical), accelerometer, proximity, compass
2G bandsGSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1900 / 2100
4G bands1, 2, 3, 5, 8, 34, 38, 39, 40, 41
Charging18W wired
FeaturesLED flash, HDR, panorama
Internal128GB 6GB RAM
Released2018, March
Announced2018, March
Bluetooth5.0, A2DP, LE
Card slotmicroSDXC (uses shared SIM slot)
3.5mm jackYes
Dimensions154.5 x 74.8 x 7.4 mm (6.08 x 2.94 x 0.29 in)
ProtectionCorning Gorilla Glass 3
Resolution1080 x 2280 pixels, 19:9 ratio (~402 ppi density)
TechnologyGSM / CDMA / HSPA / LTE
LoudspeakerYes
PositioningGPS, GLONASS

vivo X21 UD Overview

About vivo X21 UD vivo X21 UD is another flagship from Vivo's popular line of first class Android phones, released in the 2018. vivo X21 UD has a wide variety of great specifications such as 128GB 6GB RAM with Qualcomm SDM660 Snapdragon 660 (14 nm) , as well as ultrasonic fingerprint sensor. The thing that makes this decent smartphone special is its sleek design and an amazing all-screen design with no notches at all.

Rooting Information

vivo X21 UD can generally be rooted with a bootloader unlock and Magisk patched boot image workflow. Always match firmware build numbers before flashing.

Bootloader Information

Most Android rooting methods begin with bootloader unlock. Unlocking may wipe data, affect warranty, and disable some security features.

Recovery Information

Custom recovery support depends on chipset, kernel source availability, and community builds. Fastboot-based Magisk installation can work even when TWRP is unavailable.

FAQ

Can I root the vivo X21 UD?

The vivo X21 UD supports rooting through Magisk. You'll need to unlock the bootloader first, then flash a patched boot image. Check the rooting status card on this page for availability.

Does vivo X21 UD support custom recovery (TWRP)?

Many vivo devices support TWRP. Check our device page for recovery compatibility. If TWRP isn't available, you can still use Magisk through fastboot method.

Will rooting vivo X21 UD void warranty?

Yes, rooting the vivo X21 UD will void the manufacturer warranty. However, you can unroot using the stock firmware to potentially restore warranty coverage.

What Android version does vivo X21 UD run?

Check the specifications section above for the current OS version and upgrade history of your vivo X21 UD.