On this page, we will share all the latest Xiaomi Redmi K40 Pro / K40 Pro+ (codenamed haydn) firmware flash files. To flash the firmware file, you need Xiaomi Mi Flash Tool which works on both Windows, Mac, and Linux. You can follow this guide to flash the firmware stock ROM file on Xiaomi Redmi K40 Pro / K40 Pro+.
Xiaomi Redmi K40 Pro Device Overview
The Xiaomi Redmi K40 Pro features a 6.67 inch Super AMOLED display with a resolution of 1080 x 2400 pixels and an aspect ratio of 20:9. The screen is protected by Corning Gorilla Glass 5, has a peak brightness of 1300 nits, and has a refresh rate of 120Hz. Under the hood, we get the Qualcomm Snapdragon 888 chip which is built on a 5nm manufacturing process. This is an octa-core processor with one Kryo 680 core clocked at 2.84 GHz, three Kryo 680 cores clocked at 2.42 GHz, and four Kryo 680 cores clocked at 1.8 GHz.
We get a triple camera setup at the rear and a single camera at the front in terms of optics. The triple setup houses a 64MP primary sensor paired with an f/1.9 lens, an 8MP ultrawide sensor paired with an f/2.2 lens, and a 5MP Marco sensor. On the front, we see a single 20MP selfie camera. The rear setup is capable of 8K video recording, while the selfie camera is limited to only 1080p video recording. The phone comes with Android 11 out of the box with MIUI 12 skin on top.
There are three RAM and storage(UFS3.1) options for this device: 128GB ROM + 6GB RAM, 128GB ROM + 8GB RAM, and 256GB ROM + 8GB RAM. In terms of communications, we have Wi-Fi 802.11 a/b/g/n/ac/6, Bluetooth 5.2, GPS, NFC, Infrared port, and USB Type-C 2.0. For sensors, we have a side-mounted fingerprint sensor, accelerometer, gyro, proximity, compass, barometer, and color spectrum. Powering it all up is a decently sized 4520 mAh battery that supports 33W fast charging. The company claims 0-100% charge in just 52 min using this included 33W fast charging adapter. The smartphone is available in three color options: Black, White, and Aurora.