NETWORK

• Technology: GSM / HSPA / LTE

LAUNCH

• Announced: January 2017
• Status: Available. Released January 2017

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
• Bluetooth: 4.1, A2DP, LE
• GPS: Yes, with A-GPS, GLONASS, BDS
• NFC: No
• Infrared port: Yes
• Radio: FM radio
• USB: microUSB 2.0, OTG

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 (old): Endurance rating 119h
  

  Step by Step process to repair Redmi Note 4

  At OX Repair, we follow a professional and detailed process for Redmi Note 4 repair, including mobile screen replacement, battery replacement, charging port repair, and back panel repair. Our technicians first perform a complete device diagnosis to identify problems such as a cracked screen, touch not working, battery draining quickly, charging issues, or physical damage to the back cover. After confirming the issue, the Redmi Note 4 is powered off, the SIM tray is removed, and the device is carefully opened using professional mobile repair tools to safely access the internal components.

  For a Redmi Note 4 screen replacement, the broken LCD and touch display assembly is carefully disconnected from the motherboard and removed from the frame. The frame is then cleaned to remove old adhesive and debris before installing a high-quality replacement display. The new screen is tested for touch response, brightness, and display clarity before final installation.

  If the phone requires a battery replacement, the old battery is carefully detached from the adhesive and disconnected from the motherboard. A new Redmi Note 4 battery is installed with proper alignment, ensuring stable power delivery and improved battery backup.

  In case of charging problems, our technicians inspect the Redmi Note 4 charging port module, check the charging flex cable, clean the port area, and replace the charging port board if necessary to restore proper charging and data connectivity.

  For back panel repair or replacement, the damaged Redmi Note 4 back cover is removed carefully, the internal frame is inspected, and a new back panel is installed securely to restore the phone’s structure and protection.

  After completing the repair, the device goes through a complete quality testing process, including display testing, touch sensitivity check, battery performance monitoring, charging test, camera check, speaker and microphone test, and network signal verification. This ensures every Redmi Note 4 screen replacement, battery replacement, charging port repair, and back panel repair performed at OX Repair in Bangalore meets professional repair standards and restores the device to proper working condition.