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A3s(CPH1853) official device image

A3s(CPH1853)

Brand oppo
Codename A3s(CPH1853)
Official Firmware

Download A3s(CPH1853) Firmware

A3s(CPH1853)

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Firmware Downloads

Find and download official MIUI firmware for A3s(CPH1853) (A3s(CPH1853)). All firmware files include MD5 hash verification and are available for direct download.

A3s(CPH1853)

Version Method Size Release Date MD5 Hash Download
CPH1853_11_A.31 Fastboot 2.01 GB N/A
CPH1853EX_11_A.39 Fastboot 2.03 GB N/A
CPH1853EX_11_A.38 Fastboot 2.02 GB N/A
CPH1853EX_11_A.37 Fastboot 2.01 GB N/A
CPH1853EX_11_A.36 Fastboot 2.01 GB N/A
CPH1853EX_11_A.28 Fastboot 2.01 GB N/A

Device Specifications

NetworkTechnologyGSM / HSPA / LTE
2G bandsGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bandsHSDPA 850 / 900 / 2100
4G bands1, 3, 5, 8, 38, 40, 41
SpeedHSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
LaunchAnnounced2018, July 13
StatusAvailable. Released 2018, July
BodyDimensions156.2 x 75.6 x 8.2 mm (6.15 x 2.98 x 0.32 in)
Weight168 g (5.93 oz)
BuildGlass front (Gorilla Glass 3), plastic back, plastic frame
SIMDual SIM (Nano-SIM, dual stand-by)
DisplayTypeIPS LCD
Size6.2 inches, 95.9 cm2 (~81.2% screen-to-body ratio)
Resolution720 x 1520 pixels, 19:9 ratio (~271 ppi density)
ProtectionCorning Gorilla Glass 3
PlatformOSAndroid 8.1 (Oreo), ColorOS 5.1
ChipsetQualcomm SDM450 Snapdragon 450 (14 nm)
CPUOcta-core 1.8 GHz Cortex-A53
GPUAdreno 506
MemoryCard slotmicroSDXC (dedicated slot)
Internal16GB 2GB RAM, 32GB 3GB RAM, 64GB 4GB RAM
 eMMC 5.1
Main CameraDual13 MP, f/2.2, AF
2 MP, f/2.4, (depth)
FeaturesLED flash, HDR, panorama
Video1080p@30fps
Selfie cameraSingle8 MP, f/2.2
Video1080p@30fps
SoundLoudspeakerYes
3.5mm jackYes
CommsWLANWi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth4.2, A2DP, LE
PositioningGPS
NFCNo
RadioFM radio
USBmicroUSB 2.0, OTG
FeaturesSensorsAccelerometer, gyro, proximity, compass
BatteryTypeLi-Ion 4230 mAh, non-removable
Charging20W wired
MiscColorsRed, Dark Purple
ModelsCPH1803, CPH1853, CPH1805
PriceAbout 11000 INR
Data source: GSMArena

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How to Flash Firmware

Steps to Install Firmware:

  1. Download the ROM: Choose the appropriate firmware version above for your device region
  2. Backup Your Data: All data will be erased during flashing
  3. Unlock Bootloader: Required for some devices (check device-specific requirements)
  4. Download Tools: Download MIUI Flash Tool or use ADB/Fastboot
  5. Flash the ROM: Follow the tool's instructions to flash the downloaded firmware
  6. Verify: Restart and verify successful installation

⚠️ Warning: Flashing custom ROMs may void your warranty. Proceed at your own risk.

Frequently Asked Questions

Q: Is it safe to flash official firmware?

A: Yes, flashing official firmware is generally safe and won't void your warranty if done through official methods.

Q: What's the difference between Recovery and Fastboot ROMs?

A: Recovery ROMs are flashed from recovery mode, while Fastboot ROMs require bootloader unlock and ADB tools.

Q: Can I downgrade to an older firmware version?

A: Some devices allow downgrading, but it depends on the device and region. Check device-specific forums first.

Q: What if flashing fails?

A: If flashing fails, try using the official tool, ensure USB drivers are installed, and check device compatibility.