In order to be able to do more technical changes to your Xiaomi Redmi Note 4 you will need to install some extra software on your computer system to bridge to flash custom firmware. Only do any of these technical functions to your phone if it is out of warranty and know that there is a risk of permanent damage to the device. Custom ROM can be found at XDA developers forum. Drivers for ADB, CDC & VCOM functions are below.
Android ADB USB Driver (For connecting to PC)
File: get-latest_usb_driver_windows.dln
2125647c187067025667e4023e7d88eb568de2a4870b0e5b1aa355b6153d09be
Android CDC USB Driver (For Flashing Firmware)
File: get-latest_usb_cdc_driver_windows.dln
9a6c9a1c1fb1373544c5df57d4291b30488be5a9766ff86df34847f30891b7aa
Android VCOM USB Driver (For Flashing Firmware)
File: get-latest_usb_vcom_driver_windows.dln
0a9c855749a45a21009d32ff37ce8110ce80406c26cdecf209881da3c25d737c
Android ADB and Fastboot Drivers
File: get-latest_usb_adb_driver_windows.dln
36161ed97859359195bca5f489464a0628c6dd85673c6d95bceb380ebe3e5252
Android Qualcomm USB Driver
File: get-latest_usb_driver_windows.dln
6f71a3f6451ed68b4feedd9cd399147d02e10fa59112e9e1d061b918c05b0ff3
MTK VCOM USB Drivers
File: get-latest_usb_mediatek_driver_windows.dln
67a433a65d16e2e003666aeafb42cc93371b597a0a65e427dbe638cde0646f70
Resolution: 1080 x 1920 pixels, 16:9 ratio (~401 ppi density)
Platform: OS: Android 6.0 (Marshmallow), upgradable to 7.0 (Nougat), MIUI 11
Chipset: Qualcomm MSM8953 Snapdragon 625 (14 nm)
CPU: Octa-core 2.0 GHz Cortex-A53
GPU: Adreno 506
Show: Full Specs/Additional configurations
Network: Technology:
GSM / HSPA / LTE
Body: Dimensions: 151 x 76 x 8.5 mm (5.94 x 2.99 x 0.33 in)
Weight: 165 g (5.82 oz)
Build: Glass front, aluminum back, aluminum frame
SIM: Hybrid Dual SIM (Micro-SIM/Nano-SIM, dual stand-by)
Display: Type: IPS LCD
Size: 5.5 inches, 83.4 cm2 (~72.7% screen-to-body ratio)
Resolution: 1080 x 1920 pixels, 16:9 ratio (~401 ppi density)
Platform: OS: Android 6.0 (Marshmallow), upgradable to 7.0 (Nougat), MIUI 11
Chipset: Qualcomm MSM8953 Snapdragon 625 (14 nm)
CPU: Octa-core 2.0 GHz Cortex-A53
GPU: Adreno 506
Memory: Card slot: microSDXC (uses shared SIM slot)
Internal: 32GB 3GB RAM, 64GB 3GB RAM, 64GB 4GB RAM
: eMMC 5.1
Main Camera: Single: 13 MP, f/2.0, 1/3.1", 1.12µm, PDAF
Features: Dual-LED dual-tone flash, panorama, HDR
Video: 1080p@30fps, 720p@120fps
Selfie camera: Single: 5 MP, f/2.0
Video: 1080p@30fps
Sound: Loudspeaker: Yes
3.5mm jack: Yes
: 24-bit/192kHz audio
Comms: WLAN: Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct, hotspot
Bluetooth: 4.1, A2DP, LE
GPS: Yes, with A-GPS, GLONASS, BDS
NFC: No
Infrared port: Yes
Radio: FM radio
USB: microUSB 2.0, USB On-The-Go
Features: Sensors: Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Battery: Type: Li-Po 4100 mAh, non-removable
Misc: Colors: Dark Gray, Gold, Black, Lake Blue
Models: 2016100
SAR EU: 0.72 W/kg (head) 0.67 W/kg (body)
Price: About 150 EUR
Tests: Performance: GFXBench: 3.4fps (ES 3.1 onscreen)
Display: Contrast ratio: 1503:1 (nominal), 2.714 (sunlight)
Camera: Photo / Video
Loudspeaker: Voice 67dB / Noise 70dB / Ring 81dB
Audio quality: Noise -94.6dB / Crosstalk -94.3dB
Battery life:
Endurance rating 119h
