Xiaomi Mi 9T Pro firmware (codenamed raphael) is a challenge that owners of this smartphone face for various reasons, from wanting to install a fresh version of MIUI to having to restore the “brick” after a failed update. Unlike most Xiaomi devices, the Mi 9T Pro requires a special approach due to the closed MIUI ecosystem and the mandatory unlock of the bootloader. This instruction covers all the current ways of firmware in 2026 – from official updates via Ota Updater to manual installation of custom builds like LineageOS or Pixel Experience.
It is important to understand that the firmware procedure on the Mi 9T Pro is different from the newer Xiaomi models (for example, Redmi Note 12 or Xiaomi 13). There is no support for Dynamic Partition, and unlocking the bootloader through the Mi Unlock Tool can take up to 720 hours of waiting (30 days) for new accounts. We will analyze all the steps from preparing drivers to solving typical errors like anti-rollback or fastboot unknown command. If you have never flashed Android devices before, start with official methods – they are as safe as possible for “beginners”.
Preparation for firmware: what to do before the start
Before you start firmware, make sure all the prerequisites are met. 90% of the problems with the Mi 9T Pro firmware are due to missed steps at this stage.
Backup of data (photos, contacts, SMS) |
Make sure the battery charge is ≥ 60%|
Download the correct firmware version for the raphael| model
Install ADB/Fastboot and Mi USB Driver| drivers
Unlock the bootloader (if you plan to custom firmware)|
Disable Mi Account and Find Device in Settings
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Pay special attention to the firmware versions. The Mi 9T Pro has two global branches: Stable (stable, updated every 1-2 months) and Weekly (weekly builds for testers). For most users, Stable is recommended, since Weekly can contain critical bugs. Check the current version of MIUI in the Settings menu → About Phone → MIUI version.
If you plan to install custom firmware (like ArrowOS or HaventOS), be sure to unlock the bootloader in advance. Since 2021, Xiaomi has tightened its policy: new accounts must wait 30 days after the device is linked to the Mi Account before unlocking becomes available.
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If you bought the Mi 9T Pro hand-held, check the bootloader status with the command fastboot oem device-info. If the answer Device unlocked: false, the device is locked and unlocking will require waiting.
Official methods of firmware: without risk and loss of warranty
If your goal is simply to upgrade MIUI to the latest version or restore the smartphone to work without losing warranty, use official methods. They do not require unlocking the bootloader and are as safe as possible.
1. Air Update (OTA)
The easiest way that suits 95% of users Xiaomi regularly releases OTA-updates 9T Pro, even though the model came out in 2019.To check for updates:
- Go to Settings → About the phone → System update.
- Click on the three dots in the upper right corner and select Select the Service Pack (if you downloaded the firmware in advance).
- If the update is available, click Download and wait until it is completed (the file weight is usually 1.5-2.5 GB).
- After downloading, click Reboot and Update.
⚠️ Note: If after the update, the smartphone stuck on the logo MIUI longer than 10 minutes, don't panic. Forced reset it by clamping the power. + Volume up for 15 seconds. If the problem recurs, try resetting through Recovery.
2. firmware through Mi Flash Tool (for recovery)
If OTA does not work (for example, after resetting or changing the region), you can flash your smartphone through the Mi Flash Tool. This method is suitable for installing official stock firmware and requires a Windows computer.
- Download the official firmware for the Mi 9T Pro (select the Fastboot version, not Recovery).
- Unpack the archive in a folder without Cyrillic characters (for example, C:\Mi9T_Pro_firmware).
- Install the Mi Flash Tool and ADB/Fastboot drivers.
- Turn off the phone, press Volume Down + Power to log into the Fastboot.
- Connect your smartphone to your PC and in the Mi Flash Tool, select the firmware folder. Press Refresh, then Flash.
- Select Clean All mode (saves data) or Clean All and Lock mode (full reset + bootloader lock).
The process will take 5–10 When it's done, the phone automatically restarts. If the Mi Flash Tool is not able to find an error, it can't find it 'flash_all_lock.bat', Check that you downloaded the correct firmware version (for raphael, not davinci, it is Mi). 9T without").
Officially OTA-update|
Mi Flash Tool (Fastboot)|
Castom Recovery (TWRP) |
Never stitched it.-->
Unlocking the bootloader: a mandatory step for custom firmware
If you want to install TWRP, Magisk root rights, or custom firmware, you first need to unlock the bootloader. Xiaomi has made this process more complicated, but it's still possible. Here's a step-by-step instruction:
- Link the device to your Mi Account: 📱 Go to Settings. → Xiaomi account and log in. 🔗 Turn on sync and confirm. email/phone. 🔒 Activate Find Device in Settings → Memory and backup copies → Find Device.
- Connect the device to the Mi Unlock Tool: 🖥️ Download Mi Unlock Tool (version no lower than 5.5.224.54). 🔌 Turn off the phone, press the volume down. + Meals to enter the Fastboot. 🔗 Connect your smartphone to your PC and launch the Mi Unlock Tool on behalf of the administrator.
Start the unlocking process:
- ⏳ If you have a new account, you will receive a waiting message (usually 168 or 720 hours).
- 🔓 After the deadline, press Unlock – the process will take ~2 minutes.
In TWRP, the first thing you do is make a persist backup (responsible for IMEI and modem). Without this, after you have firmware, your network or Wi-Fi may disappear. To avoid anti-rollback problems, only flash the firmware that supports your current version of ARB.
Popular custom firmware for Mi 9T Pro
| Firmware | Features | Reference | Stability |
|---|---|---|---|
| Pixel Experience | Pure Android with Pixel chips, regular updates | Download | ⭐⭐⭐⭐ (4/5) |
| LineageOS | Minimalist Android without Bloat, long-term support | Download | ⭐⭐⭐⭐ (4/5) |
| ArrowOS | Balance between customization and stability, AOD works | Download | ⭐⭐⭐⭐☆ (4.5/5) |
| HaventOS | Optimized for performance, game mode | Download | ⭐⭐⭐☆ (3/5) |
Before installing any custom firmware, be sure to read the list of bugs on the forum (e.g., XDA-Developers).Typical problems for the Mi 9T Pro:
- 📱 It doesn't work Always-On Display (AOD) assemblies.
- 🎧 Problems with sound in headphones (solved by firmware of a separate patch).
- 📶 Poor communication in roaming (check settings) APN).
What to do if there is no network after the firmware?
Solving typical firmware errors
Even with the instructions followed accurately, errors can occur, and here are the most common problems and solutions for the Mi 9T Pro:
1. "Anti-rollback check fail" error
This error occurs when you try to flash a version of MIUI older than the one you have installed right now, for example, if you're on a phone with a MIUI 14 and you're trying to put a MIUI 12.
- 🔄 Scroll down a newer version. MIUI (compatible ARB).
- 🔧 If you need to roll back, find the firmware with the anti-rollback disabled (risky!).
2.Fastboot doesn't see the device
If you enter the command fastboot devices list is empty:
- 🔌 Check the cable (better to use the original from Xiaomi).
- 🖥️ Reinstall Mi drivers USB Driver manually through Device Manager.
- 🔄 Try another one. USB-port (preferably) USB 2.0, not 3.0).
- 🔧 Put the debugging on. USB in the developer settings (Settings) → The phone. → Version. MIUI — tap 7 times).
3. Hanging on the MIUI logo after firmware
If the phone does not load for more than 15 minutes:
- 🔄 Forced reboot it (Fooding) + Volume up 15 seconds).
- 📱 Enter the Recovery (Food) + Volume up and make Wipe Data.
- 🔧 If it doesn’t work, run the stock firmware through the Mi Flash Tool in Clean All mode.