On this page, we will share all the latest Xiaomi Redmi K90 Pro Max / Xiaomi Poco F8 Ultra (codenamed: myron) firmware flash files. To flash the firmware file, you need the Xiaomi Mi Flash Tool, which works on Windows, Mac, and Linux. Follow this guide to flash the firmware stock ROM file on Redmi K90 Pro Max / Poco F8 Ultra.
Xiaomi Redmi K90 Pro Max / Poco F8 Ultra Device Overview:
The Xiaomi Redmi K90 Pro Max / Poco F8 Ultra, released in October 2025, is a no-compromise flagship built for power users who want everything maxed out. It features a large 6.9-inch AMOLED display with 120Hz refresh rate, Dolby Vision, HDR10+, and a massive 3500 nits peak brightness, protected by Dragon Crystal Glass.
The phone feels premium with its aluminum alloy frame, IP68 water and dust resistance, and a bold design despite weighing 218 g.Running Android 16 with HyperOS 3, it is powered by the Snapdragon 8 Elite Gen 5 (3nm) chipset paired with up to 16GB RAM and UFS 4.1 storage, delivering top-tier performance for gaming, multitasking, and long-term use.
On the camera side, the K90 Pro Max packs a serious 50MP triple-camera system, including a large-sensor main camera with OIS, a 5x periscope telephoto, and a capable ultrawide lens, supporting 8K video, advanced HDR, and high-frame-rate slow motion. Audio is a standout with a Bose-tuned 2.1 stereo system that includes a dedicated woofer, Dolby Atmos, and Hi-Res audio support.