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TWRP device tree for Realme RMX1821 (Realme 3)

About Device

Realme RMX1821

Specifications

Component Type Details
Models RMX1825, RMX1821
CPU Octa-core (4x2.1 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53) Helio P70
Chipset MT6771 (12 nm)
GPU Mali-G72 MP3
architecture 64 bit
Memory 4/6 GB RAM
Shipped OS ColorOS 6.0 based on Android 9.0
Storage 64/128 GB DDR4X (expandable storage up to 256GB (VFAT))
Battery Non-removable Li-Ion 4230 mAh battery
Height 156.1mm
Width 75.6mm
Thickness 8.3mm
Weight 175g (with battery)
Display 6.22" (16cm) IPS LCD capacitive touchscreen, 16M colors, Dewdrop Full Screen
Aspect Ratio 19 : 9
Screen To Body Ratio ~81.8%
Pixel density ~270 PPI
Screen resolution 720 x 1520 pixels
Protection Corning Gorilla Glass 3
Quick charging Yes, 10W
Wifi Yes, IEEE802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot
Bluetooth 4.2, A2DP, LE
GPS Yes, with A-GPS, GLONASS
USB microUSB 2.0, USB On-The-Go
Body Build Front glass, plastic(Polycarbonate) body
Colours Black, Dynamic Black, Radiant Blue
Network support Both SIM slots are compatible with 4G, support 4G VoLTE in both slots simultaneously
Card Triple Slots / dual nano-SIM
SIM size SIM1: Nano, SIM2: Nano
Sensors P/L-Sensors, Accelerometer, Gyroscope, Geomagnetic Sensor, Fingerprint (rear-mounted)
Rear Dual Camera AI Front Camera Video
13MP+2MP 13MP 720P/1080P, 30fps
PDAF Fast Focusing f/2.0 Aperture Slo-Mo (90fps / 720p)
f/1.8 Aperture 1.12μm Pixels
5P Lens AI Beautification
Nightscape HDR
Hybrid HDR AI Beautification
Ultra HD AI Facial Unlock
Chroma Boost
Portrait Mode
Network Bands
2G GSM 1900 / 1800 / 900 / 850 MHz
3G UMTS 2100 / 1900 / 900 / 850 MHz
3G WCDMA: 850 / 900 / 2100MHz
3G Speed HSDPA 42 Mbit/s / HSUPA 11 Mbit/s
4G TD-LTE: Bands 38 / 40 / 41 (2535-2655MHz)
4G FDD-LTE: Bands 1 / 3 / 5 / 8
GPRS Available
EDGE Available
HSPA Available
Tests Results
Performance Basemark OS II: 2104 / Basemark OS II 2.0: 2020 Basemark X: 19157
Display Contrast ratio: 1464:1 (nominal), 2.918 (sunlight)
Camera Photo / Video
Loudspeaker Voice 66dB / Noise 71dB / Ring 81dB
Audio quality Noise -93.5dB / Crosstalk -91.6dB
Battery life Endurance rating 108h

Note: Above test results may(not) vary.

This device tree can be used to build twrp for Realme RMX1821 (Realme 3)

Build Instructions

export ALLOW_MISSING_DEPENDENCIES=true
source build/envsetup.sh
lunch omni_RMX1821-eng
mka recoveryimage

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Recovery trees for Realme 3/3i

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  • Makefile 73.1%
  • Shell 26.9%