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HomeCommon ProblemCan a memory card be inserted into Redmi K40?

Redmi k40 cannot insert a memory card. Redmi k40 is a mobile phone released by Redmi on February 25, 2021. It does not support expanded storage capacity, that is, it does not support the use of external memory cards; its body storage is available in 128GB and 256GB versions, which can satisfy most users needs. The front of the Redmi K40 uses a direct-facing screen made of Samsung E4 luminescent material, equipped with a Qualcomm Snapdragon 870 processor and a built-in 4520 mAh non-removable battery.

Can a memory card be inserted into Redmi K40?

#The operating environment of this tutorial: MIUI 13 system, Redmi K40 mobile phone.

Redmi K40 is a mobile phone released by Redmi on February 25, 2021.

Redmi K40 is equipped with Qualcomm Snapdragon 870 processor and built-in 4520 mAh non-removable battery; rear 48-megapixel main lens, 8-megapixel ultra-wide-angle lens, 5-megapixel telephoto macro lens, three front cameras Equipped with a 20-megapixel camera, it is a 5G full Netcom mobile phone.

Redmi K40 does not support expanded storage and cannot insert a memory card; its body storage is available in 128GB and 256GB versions, which can meet the needs of most users.

Can a memory card be inserted into Redmi K40?

Redmi K40 uses a rectangular rear camera module with a perforated screen. The front uses a centered punching solution and the rear camera module on the back of the phone is more similar to a round shape. It has a rectangular shape and a front-facing screen made of Samsung E4 luminescent material.

The back of the Redmi K40 mobile phone adopts a runway-shaped design, that is, the main camera and telephoto are located on both sides of the module, the ultra-wide-angle lens and microphone are "sandwiched" in the center, and the curvature of the double-layer rear camera bulge is consistent.

Redmi K40 adopts a side fingerprint recognition solution. The volume keys and ergonomic fingerprint recognition keys are arranged on the right side of the fuselage. The fingerprint recognition area is slightly expanded.

Can a memory card be inserted into Redmi K40?

##Memory and Capacity6GB 128GB, 8GB 128GB, 8GB 256GB, 12GB 256GB, RAM: LPDDR5, ROM: UFS 3.1ScreenMain screen size: 6.67 inches CameraRear camera: 48 million pixels main lens 8 million pixels ultra wide-angle lens 5 million pixels Pixel telephoto macro lens
Redmi K40 Configuration Parameters
Category
Description
##CPU
Qualcomm Snapdragon 870 octa-core Processor, frequency 3.2 GHz A77*1 2.4 GHz A77*3 1.8 GHz A55*4
Does not support capacity expansion
Main screen material: AMOLED (E4)
Main screen resolution : 2400x1080 pixels
Screen technology: Corning Gorilla Glass 5
HDR technology: HDR 10
Screen refresh rate: 120 Hz
Other screen parameters: 1300 nits peak brightness, 900 nits global brightness, 5000000:1 contrast ratio, 360 Hz touch sampling rate, True Tone ambient color temperature, Sunshine Screen 3.0, SGS eye protection certification, MEMC frame rate compensation, 8-bit primary color screen, 2.76 mm Screen opening
Front camera: 20 million pixels
Sensor model: Sony IMX582
Flash: LED fill light
Aperture: Rear f/1.79
Wide angle: Rear 119 degrees
Focal length/range: 50mm
Video shooting: Rear 4K (3840×2160, 30 frames/second ) video recording, 1080p (1920×1080, 60 frames/second, 30 frames/second) video recording, 720p (1280×720, 30 frames/second) video recording, slow motion 1080p (1920×1080, 960 frames/second, 240 frames/second, 120 frames/second) video recording, slow-motion 720p (1280×720, 960 frames/second, 240 frames/second, 120 frames/second) video recording; front-facing 1080p (1920×1080, 30 frames/second) seconds) video recording, 720p (1280×720, 30 frames/second) video recording, slow motion 720p (1280×720, 120 frames/second) video recording
Identification technology
Side fingerprint recognition, facial recognition
Charging and battery
4520 mAh, non-removable battery
Network and format
5G network: Mobile 5G (NR TDD), China Unicom 5G (NR TDD), China Telecom 5G (NR TDD)
4G network: Mobile TD-LTE, China Unicom TD- LTE, China Unicom FDD-LTE, China Telecom TD-LTE, China Telecom FDD-LTE
3G network: China Mobile 3G (TD-SCDMA), China Unicom 3G (WCDMA), China Telecom 3G (CDMA2000)
Supported frequency bands
2G: GSM 850/900/1800/1900MHz
2G: CDMA 1X BC0
3G: WCDMA B1/B2/B4/B5/B6/B8/ B19
3G: CDMA EVDO BC0
4G: FDD-LTE B1/B2/B3/B4/B5/B7/B8/B18/B19/B26/B28A
4G: TDD-LTE B34/B38/B39/B40/B41/B42
5G: n1/n3/n28A/n41/n77/n78
SIM card type: Dual SIM (Nano SIM Card)
WLAN function: dual-band WIFI, WiFi6, IEEE 802.11 a/b/g/n/ac/ax (supports 2x2 MIMO technology, 8x8 Sounding for MU-MIMO, WiFi Direct)
Connection and sharing: Infrared remote control, WLAN hotspot, VoLTE
Bluetooth: Support Bluetooth 5.1, support AAC/LDAC/LHDC
Other network parameters: dual-mode 5G
Navigation and Positioning
Beidou Navigation (B1 B2a), GPS Navigation (L1 L5), Galileo Navigation (E1 E5a), GLONASS Navigation (G1), QZSS navigation (L1 L5), NavIC, A-GPS technology, A-GLONASS, A-BDS, data network positioning, Wi-Fi network positioning, sensor-assisted positioning
Sensor
Distance sensor, ambient light sensor, acceleration sensor, gyroscope, electronic compass, color temperature sensor, infrared remote control
Body interface
USB Type-C interface

##Processor

Redmi K40 is equipped with Qualcomm Snapdragon 870 octa-core processor, using a 7nm process. It adopts a 1 3 4 eight-core design. One large core is Arm Cortex A77 with a main frequency of 3.2 GHz, the other three large cores are A77 cores with a main frequency of 2.4 GHz, and the four small cores are A55. The frequency is 1.8 GHz and supports WIFI6. It is also equipped with Qualcomm Adreno 650 graphics processor.

Camera

Redmi K40 adopts a rear three-camera solution consisting of a 48-megapixel main camera (IMX 582), a 5-megapixel telephoto macro, and an 8-megapixel super wide-angle camera. The front is a 20-megapixel single camera, supporting 48-megapixel ultra-clear, AI magic clone, front and rear dual scenes, AI magic kaleidoscope, AI smart beauty, gesture photography, AI camera, AI human-scene separation, super night scene, document mode, movie Lens, ID photocopy mode, cute photo, rear beauty-shaping, movie filter, voice subtitles, portrait mode background blur, professional mode, dynamic photo, timed continuous shooting, voice-activated photo, countdown photo, level, reference line and other camera functions.

Fingerprint recognition

Redmi K40 adopts a side fingerprint recognition solution. This fingerprint recognition button not only helps users quickly unlock the phone, but also has more customization Operations, such as directly opening Alipay health code, WeChat scan and other functions or some system applications.

Multi-function NFC

Redmi K40 supports multi-function NFC (after opening the Tianxing Financial Wallet App, you can use Xiaomi Bus, Mi Pay, and door cards by double-clicking the power button, eID, electronic car keys and other functions, used in public transportation, mobile payment, mobile phone door opening, etc.).

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