Redmi K90 Max China (prague) HyperOS OS4.0.5.0.XAACNXM Update
On this page, you can download the official HyperOS OS4.0.5.0.XAACNXM stable update for Redmi K90 Max China with codename prague. If you're looking for other Redmi K90 Max China HyperOS ROM updates, please check here.
If you're looking to download HyperOS ROM for other Xiaomi, Redmi or POCO device, click here.
Info
All Redmi K90 Max China (prague) HyperOS OS4.0.5.0.XAACNXM ROM files offered here are official and untouched. They're not modified, owned, or edited in any manner by MIUI Downloader.
Redmi K90 Max China HyperOS OS4.0.5.0.XAACNXM Recovery ROM
| # Recovery ROM | |
|---|---|
| Device | Redmi K90 Max China |
| Codename | prague |
| HyperOS Version | OS4.0.5.0.XAACNXM |
| Branch | Stable |
| Type | Recovery |
| Size | 8.9 GB |
| Date | 2026-10-26 |
| File Name | prague-ota_full-OS4.0.5.0.XAACNXM-user-17.0-8a4200c881.zip |
| MD5 | 8a4200c881602e78dda1d70426672971 |
HyperOS OS4.0.5.0.XAACNXM Recovery ROM - Changelog
[Basic experience]
Reduced system load and memory use for lasting smooth performance
New: Precision workload scheduling helps optimize system-wide performance
Optimization: System workload scheduling handles tasks more efficiently, while redundant instructions have been removed to improve performance and reduce power consumption
Optimization: CPU processing and GPU rendering workloads consume less power
Optimization: Graphics rendering reduces UI power consumption and stuttering
Optimization: Game frequency scaling delivers more stable frame rates in demanding scenarios such as team battles
New: Memory preloading helps apps respond faster
Optimization: Memory reservation and allocation reduce resource use and memory usage after startup
Optimization: Background resource scheduling loads resources only when needed and staggers background tasks to reduce memory use and improve performance
Optimization: Memory preloading and storage prefetching reduce occasional stuttering and frame drops, speed up cold starts, and improve app responsiveness
New: Xiaomi HyperOS app runtime environment helps system apps run more smoothly and use resources more efficiently
Optimization: Home screen and Gallery interactions provide smoother visuals and more responsive controls
Optimization: Gallery and Weather use fewer CPU and memory resources in the background
[Xiaomi Hyper XiaoAi]
Upgraded Xiaomi Hyper XiaoAi now understands you better and makes everyday tasks easier
New interactions:
New: Xiaomi Hyper XiaoAi supports Xiaomi HyperIsland, letting you follow the progress of long-running AI tasks in real time. Notifications automatically expand when tasks are complete.
New: Xiaomi Hyper XiaoAi action bubble. Swipe in from the side and pause to bring it up, then point to on-screen content to ask questions or take action. Drag it to a location to start navigation, or to an event to add it to your calendar.
Optimization: The default Xiaomi Hyper XiaoAi voice sounds more natural
Optimization: The Xiaomi Hyper XiaoAi start page makes it easier to view previous tasks, open your profile, or start a new conversation using the tabs at the bottom
Pro mode:
New: Xiaomi Hyper XiaoAi offers Pro mode for complex and scheduled tasks across apps and devices, with cloud-based tools for document processing and webpage creation
Memories and memory preferences can now sync across phones, tablets, and computers
Transfer files across devices, send files from your computer to your phone, and search for files on other phones, tablets, and computers
Control devices with a single request, such as casting your screen
Create webpages, PowerPoint presentations, Word documents, Excel spreadsheets, and PDFs with a single request, with support for cloud-based file processing such as document format conversion
Phone notifications sync to your tablet and computer in real time, and you can reply from either device using Home screen+
Privacy protection:
New: Xiaomi Hyper XiaoAi includes additional privacy safeguards. AI can control apps and access data only within the permissions you grant, and asks for confirmation before sensitive actions to help prevent unintended operations.
New: Xiaomi Hyper XiaoAi includes a memory management page where you can control what your assistant is allowed to remember. Memories are encrypted and stored locally for greater privacy and control.
[Alive Design Philosophy]
Refreshed system visuals for a more polished look
New: A soft glass material responds to surrounding colors and automatically adjusts its transparency for a more refined look
New: Soft glass lighting effects respond dynamically to your actions for more fluid interactions
New: The Lock screen offers more clock customization options, including text width and height, position, font, and material style
New: Notifications can appear in stacks on the Lock screen and at the bottom of the Notification shade for easier access and smoother animations
New: The Home screen supports widget stacks. Swipe up or down to switch between widgets, with multiple shapes and styles available for a clearer view of information.
New: You can resize Home screen folders by dragging their edges
New: System apps use an adaptive floating layout with a refreshed design that adjusts to different screen sizes for more immersive browsing and clearer navigation
New: Third party apps support seamless transition animations
Optimization: Opening and closing animations for landscape apps and screen rotation animations in multi-window scenarios provide smoother transitions
[Comprehensive system app optimization]
Upgraded core system apps to make them more useful and easier to use
Phone:
New: Added the new AI calls feature for easier call handling
You can now ask Xiaomi Hyper XiaoAi to set when AI should answer incoming calls for you. After each call, AI will automatically summarize the key points.
AI reply suggestions for common calls, such as food delivery and courier calls. Once you confirm a suggestion, AI will reply to the caller by voice.
Notes:
New: Notes supports real-time transcription and automatic summaries for recordings
New: AI Summary offers templates for meetings, interviews, classes, and general use, creating structured summaries that make key points easier to find
New: You can import audio and images from your device and automatically turn their content into AI notes
New: Xiaomi Hyper XiaoAi is available in Notes, letting you ask questions about your content, edit notes, and more
Xiaomi Hyper XiaoAi Keyboard:
New: Voice input uses AI to turn speech into clear, well-structured text
New: AI can generate chat replies based on conversation context, with multiple styles available
New: AI Translate supports typed and voice input for real-time translation between Chinese and English
New: Autofill supports card and ID information
Recorder:
New: Recordings include a timeline outline to help you quickly find and jump to specific parts
New: AI can generate concise summaries of marked key points
New: AI Summary offers templates for meetings and general use, automatically turning recordings into structured summaries
New: Recording playback can automatically skip silent segments for a more streamlined listening experience
Other:
New: File Manager includes "Recently deleted", making it easy to restore deleted files
New: Clipboard shortcuts work in more scenarios. After copying text, you can quickly extract ID information, make calls, start navigation, and more.
New: Mi Mover can now transfer Xiaomi Hyper XiaoAi conversation history and scheduled tasks
New: Xiaomi Cloud backup can now back up photos, messages, contacts, call history, documents, Xiaomi Hyper XiaoAi data, including conversation history and scheduled tasks, WeChat data, including chat history, QQ data, including chat history, and more
New: Optimize recognition in low light. When you add your face data in low light, screen brightness will temporarily increase to improve recognition.
New: You can now submit issues or suggestions simply by chatting with Xiaomi Hyper XiaoAi
Optimization: Calendar shows more relevant event details based on the event type
[Interconnectivity]
New: Xiaomi Smart Hub offers card-based controls, letting you pin frequently used devices, switch between homes with one tap, and control devices across the Human × Car × Home ecosystem more easily
New: Xiaomi Interconnectivity for PC and Mac has been upgraded. Use Xiaomi Hyper XiaoAi to transfer files and sync notifications across your computer, phone, and tablet.
New: Two Xiaomi phones can connect to each other, allowing calls and SMS verification codes to sync between them. You can handle calls and messages on either phone and quickly copy recognized content with one tap.
Go to Settings > Interconnectivity > Cross-device notifications > Receive, select another Xiaomi phone signed in to the same Xiaomi Account, turn on call and message notifications, and make sure both phones are connected to the internet
[Privacy and security]
New: Secure access to photos and videos supports albums and smart search, making it easier to find the content you want
New: You can reset your screen lock if you forget it. Within 96 hours of adding a fingerprint, use your previous screen lock and fingerprint to set a new one.
[Other]
Visit our website to learn more: https://hyperos.mi.com/
Redmi K90 Max China HyperOS OS4.0.5.0.XAACNXM Fastboot ROM
| # Fastboot ROM | |
|---|---|
| Device | Redmi K90 Max China |
| Codename | prague |
| HyperOS Version | OS4.0.5.0.XAACNXM |
| Android Version | 17.0 |
| Branch | Stable |
| Type | Fastboot |
| Size | 14.2 GB |
| Date | 2026-10-21 |
| File Name | prague_images_OS4.0.5.0.XAACNXM_20261021.0000.00_17.0_cn_3629323b37.tgz |
| MD5 | 3629323b3744cdcc180a3480543c8b7b |
HyperOS OS4.0.5.0.XAACNXM Fastboot ROM - Changelog
[Basic experience]
Reduced system load and memory use for lasting smooth performance
New: Precision workload scheduling helps optimize system-wide performance
Optimization: System workload scheduling handles tasks more efficiently, while redundant instructions have been removed to improve performance and reduce power consumption
Optimization: CPU processing and GPU rendering workloads consume less power
Optimization: Graphics rendering reduces UI power consumption and stuttering
Optimization: Game frequency scaling delivers more stable frame rates in demanding scenarios such as team battles
New: Memory preloading helps apps respond faster
Optimization: Memory reservation and allocation reduce resource use and memory usage after startup
Optimization: Background resource scheduling loads resources only when needed and staggers background tasks to reduce memory use and improve performance
Optimization: Memory preloading and storage prefetching reduce occasional stuttering and frame drops, speed up cold starts, and improve app responsiveness
New: Xiaomi HyperOS app runtime environment helps system apps run more smoothly and use resources more efficiently
Optimization: Home screen and Gallery interactions provide smoother visuals and more responsive controls
Optimization: Gallery and Weather use fewer CPU and memory resources in the background
[Xiaomi Hyper XiaoAi]
Upgraded Xiaomi Hyper XiaoAi now understands you better and makes everyday tasks easier
New interactions:
New: Xiaomi Hyper XiaoAi supports Xiaomi HyperIsland, letting you follow the progress of long-running AI tasks in real time. Notifications automatically expand when tasks are complete.
New: Xiaomi Hyper XiaoAi action bubble. Swipe in from the side and pause to bring it up, then point to on-screen content to ask questions or take action. Drag it to a location to start navigation, or to an event to add it to your calendar.
Optimization: The default Xiaomi Hyper XiaoAi voice sounds more natural
Optimization: The Xiaomi Hyper XiaoAi start page makes it easier to view previous tasks, open your profile, or start a new conversation using the tabs at the bottom
Pro mode:
New: Xiaomi Hyper XiaoAi offers Pro mode for complex and scheduled tasks across apps and devices, with cloud-based tools for document processing and webpage creation
Memories and memory preferences can now sync across phones, tablets, and computers
Transfer files across devices, send files from your computer to your phone, and search for files on other phones, tablets, and computers
Control devices with a single request, such as casting your screen
Create webpages, PowerPoint presentations, Word documents, Excel spreadsheets, and PDFs with a single request, with support for cloud-based file processing such as document format conversion
Phone notifications sync to your tablet and computer in real time, and you can reply from either device using Home screen+
Privacy protection:
New: Xiaomi Hyper XiaoAi includes additional privacy safeguards. AI can control apps and access data only within the permissions you grant, and asks for confirmation before sensitive actions to help prevent unintended operations.
New: Xiaomi Hyper XiaoAi includes a memory management page where you can control what your assistant is allowed to remember. Memories are encrypted and stored locally for greater privacy and control.
[Alive Design Philosophy]
Refreshed system visuals for a more polished look
New: A soft glass material responds to surrounding colors and automatically adjusts its transparency for a more refined look
New: Soft glass lighting effects respond dynamically to your actions for more fluid interactions
New: The Lock screen offers more clock customization options, including text width and height, position, font, and material style
New: Notifications can appear in stacks on the Lock screen and at the bottom of the Notification shade for easier access and smoother animations
New: The Home screen supports widget stacks. Swipe up or down to switch between widgets, with multiple shapes and styles available for a clearer view of information.
New: You can resize Home screen folders by dragging their edges
New: System apps use an adaptive floating layout with a refreshed design that adjusts to different screen sizes for more immersive browsing and clearer navigation
New: Third party apps support seamless transition animations
Optimization: Opening and closing animations for landscape apps and screen rotation animations in multi-window scenarios provide smoother transitions
[Comprehensive system app optimization]
Upgraded core system apps to make them more useful and easier to use
Phone:
New: Added the new AI calls feature for easier call handling
You can now ask Xiaomi Hyper XiaoAi to set when AI should answer incoming calls for you. After each call, AI will automatically summarize the key points.
AI reply suggestions for common calls, such as food delivery and courier calls. Once you confirm a suggestion, AI will reply to the caller by voice.
Notes:
New: Notes supports real-time transcription and automatic summaries for recordings
New: AI Summary offers templates for meetings, interviews, classes, and general use, creating structured summaries that make key points easier to find
New: You can import audio and images from your device and automatically turn their content into AI notes
New: Xiaomi Hyper XiaoAi is available in Notes, letting you ask questions about your content, edit notes, and more
Xiaomi Hyper XiaoAi Keyboard:
New: Voice input uses AI to turn speech into clear, well-structured text
New: AI can generate chat replies based on conversation context, with multiple styles available
New: AI Translate supports typed and voice input for real-time translation between Chinese and English
New: Autofill supports card and ID information
Recorder:
New: Recordings include a timeline outline to help you quickly find and jump to specific parts
New: AI can generate concise summaries of marked key points
New: AI Summary offers templates for meetings and general use, automatically turning recordings into structured summaries
New: Recording playback can automatically skip silent segments for a more streamlined listening experience
Other:
New: File Manager includes "Recently deleted", making it easy to restore deleted files
New: Clipboard shortcuts work in more scenarios. After copying text, you can quickly extract ID information, make calls, start navigation, and more.
New: Mi Mover can now transfer Xiaomi Hyper XiaoAi conversation history and scheduled tasks
New: Xiaomi Cloud backup can now back up photos, messages, contacts, call history, documents, Xiaomi Hyper XiaoAi data, including conversation history and scheduled tasks, WeChat data, including chat history, QQ data, including chat history, and more
New: Optimize recognition in low light. When you add your face data in low light, screen brightness will temporarily increase to improve recognition.
New: You can now submit issues or suggestions simply by chatting with Xiaomi Hyper XiaoAi
Optimization: Calendar shows more relevant event details based on the event type
[Interconnectivity]
New: Xiaomi Smart Hub offers card-based controls, letting you pin frequently used devices, switch between homes with one tap, and control devices across the Human × Car × Home ecosystem more easily
New: Xiaomi Interconnectivity for PC and Mac has been upgraded. Use Xiaomi Hyper XiaoAi to transfer files and sync notifications across your computer, phone, and tablet.
New: Two Xiaomi phones can connect to each other, allowing calls and SMS verification codes to sync between them. You can handle calls and messages on either phone and quickly copy recognized content with one tap.
Go to Settings > Interconnectivity > Cross-device notifications > Receive, select another Xiaomi phone signed in to the same Xiaomi Account, turn on call and message notifications, and make sure both phones are connected to the internet
[Privacy and security]
New: Secure access to photos and videos supports albums and smart search, making it easier to find the content you want
New: You can reset your screen lock if you forget it. Within 96 hours of adding a fingerprint, use your previous screen lock and fingerprint to set a new one.
[Other]
Visit our website to learn more: https://hyperos.mi.com/