The article is reproduced from https://zhuanlan.zhihu.com/p/408114647?ivk_sa=1024320u
because I am worried that it will not be found later or will be deleted by the author, so
if you read the latest tutorial (the author may modify it), or see the solution in the comment area, please Visit the original link
Some key digressions:
1. There is almost no risk in flashing, but you must follow the steps!
2. There are two common ways to flash the phone: card brush and wire brush
Card swiping: Put the system into the phone's built-in storage or SD card, and update it through the system's built-in program or install it through a third-party program
Wire brushing: Connect the mobile phone to the computer, and use the computer to flash into the system through official or third-party tools.
If you just flash the system and have no other requirements, it is recommended to use a wire brush , which is simple and convenient. In many cases, card swiping needs to be swiped into a third-party Recovery to operate, but Xiaomi EU does not provide a wire brush package or users need a third-party Recovery to install magisk (for example, install a wallet for an international version system: MIUI international version/EU install Mi Wallet Tutorial) for more complex operations, it is inevitable to choose card swiping.
3. EU version and international version
Xiaomi international version generally refers to the common system of foreign Xiaomi mobile phones. Except for software differences in different regions, the international version of the system has fewer advertisements than domestic ones, and it comes with Google Family Bucket. The official EU system of MIUI is the EEA version, which has canceled advertisements, but there is a Google family bucket, which can be found on the MIUI international version website.
The EU version is a non-governmental version certified by the European Union and MIUI. The update speed is parallel to that of the domestic beta version. The official version is even faster than the domestic release. There are no advertisements and the Google suite only has Google Store and GMS, which is very clean. If you are a light user and want to build a Xiaomi system without ads, the EU version is recommended.
MIUI EU forum link: https://xiaomi.eu/
It is necessary to surf the Internet scientifically in the global mode, and the mainland IP has been blocked. In the forum, you need to find out whether your mobile phone model has ROM adaptation in the post, and the known BUG or special matters will be stated in the post.
If you are familiar with flashing, you can directly find the installation package you need in MIUI EU's resource station ↓ here
https://sourceforge.net/projects/xiaomi-eu-multilang-miui-roms/files/xiaomi.eu/
MIUI-WEEKLY-RELEASES is the latest test version every week
MIUI-STABLE-RELEASES is the stable version.
Note, if there is no scientific Internet tool, the download speed will be very slow, and if there is, it will be downloaded at full speed in minutes.
------------------------------------------ Main article --------- -----------------------------------------
Brush machine preparation: unlock bootloader
turn on the phone
1. "Settings" -> "Login Mi Account"
2"Settings" -> "About Phone -> "All Parameters" -> Click MIUI version multiple times > Prompt "Developer mode is enabled"
3 "Settings" -> "More Settings" -> "Developer Options" -> "Device Unlock Status"
4 "Settings" -> "More Settings" -> "Developer Options" -> "Debugging" -> "Enable USB Debugging" -> Find "Device Unlock Status" -> "Bind SIM Card and Mi Account" - >Wait for 7 days* (Note 1: I don’t know why I waited 7 days to read the end of the article)
4. Log in to the webpage to apply for unlocking the Xiaomi phone (miui.com) and download the unlocking tool
5. Turn off the phone -> press and hold the power button and the volume down button to enter fastboost mode -> connect the phone to the computer ->
6. Unzip the downloaded unlock tool -> open miflash_unlock.exe -> login account -> unlock
7. Restart the phone -> log out of Mi account/Google account (If you don’t log out, the phone will be locked after flashing)
Official brush machine: wire brush
1 Get the wire flashing tool
Log in to the official website- https://en.miui.com/>find download on the webpage->enter your model number->click Flashing Guide on the page->click Fastboot Update on the page->click Download MIUI ROM Flashing Tool on the page->get MiFlash wire brush tool
2. Obtain the system installation package
if it is an international version
Find your mobile phone model on the page STEP 2 -> click the yellow bar to write the model -> get the wire brush package (compressed package in tgz format) -> decompress the file
If it is the EU version or other rare versions (my own ps eu version seems to go directly to the eu version for more completeness)
open the webpage https://xiaomirom.com/(download the latest and historical versions of Xiaomi ROM line flashing package, card flashing package) -> enter the phone model -> find The desired version page -> get the wire brush package (compressed package in tgz format) -> decompress the file
3. Brush into the system
Run XiaoMiFlash.exe->Enter the mobile phone into fastboost mode->Plug the mobile phone into the computer->Click Driver->Click Install (by default, all required drivers are loaded into the computer)->
Go back to the homepage of XiaoMiFlash->Click Select->Select the unzipped folder->Click Load Device->Click the loaded device->Click the bottom right corner to delete all->Flash
Note: Select Delete All! Do not lock! Do not keep user data!
4. Restart the phone, and the flashing is complete
Formal swipe: card swipe
Since Android 11 requires mobile phones to use A/B partitions to ensure security, after the third-party recovery is installed, it will be forcibly overwritten by Mi Recovery in another partition, so it can only be operated by temporary overwriting.
1. Download the third-party rec
by downloading TWRP ( https://twrp.me/) or Orange Fox https://orangefox.download/zh-CNto search for the rec that is compatible with your phone. If there is no corresponding model, such as Redmi K40, you can go to XDA Forums ( xda-developers.com) to find it, and you can basically find it. Because the rec of TWRP is the most common, so here we use TWRP as an example
Download rec->make sure your rec file is in img format->change the name you remember, such as lajixiaomi.img
2. Download the card brush package
if it is the international version or other versions,
log in to the official website- https://en.miui.com/>find download on the webpage->enter your model number->click the page Download Full Rom->get the card brush package (compressed package in zip format)
If it is the EU version
, log in to the web page xiaomi.eu/> find the desired version web page -> get the card brush package (compressed package in zip format)
3. Install rec ( this method is unsuccessful, it may be caused by the new partition strategy of Xiaomi 11u )
Download Platform-tools ( https://developer.android.google.cn/studio/releases/platform-tools?hl=zh-cn) -> The phone enters fastboost mode -> Unzip the platform-tools compressed package -> Hold down the Shift key and right click In the blank space of the folder, click "Open Powershell window here" ->
-> Run the following command to flash into TWRP
.\fastboot flash lajixiaomi.img
->After flashing successfully, the phone restarts to the rec interface->Make sure it is area A->Clear data ->Restart rec reboot recovery->
Put in the downloaded system zip file -> brush in (do not verify the signature) -> restart rec and install the system again -> restart the system -> installation is complete
4. Restart the phone, and the flashing is complete
other notes
1. Skip the network check
and pull out the SIM card -> connect to WIFI -> check for an update error -> try to use another network -> is checking and click return -> "view all WLAN networks" -> skip the check and enter the system operation initialization setting Certainly
2. Why do I have to wait 7 days to unlock?
Historical reasons + legal issues
1. On March 15, 2014, the State Administration for Industry and Commerce announced the "Measures for the Administration of Online Transactions", requiring all products to be returned within 7 days without any reason. If the mobile phone is unlocked within 7 days, someone may flash the mobile phone through unlocking rec, and inject viruses or backdoors at the bottom of the system Return after procedure. After the mobile phone is returned, the official will not re-flash the mobile phone system before shipping, but simply check the packaging and the integrity of the mobile phone, and restore the system settings of the mobile phone before packaging and re-selling it on the shelves. This will make these viruses or backdoors implanted. The entry of mobile phones into the market damages the rights and interests of other normal consumers.
2. Hardware damage caused by flashing is not within the scope of warranty (software problems are repaired by Xiaomi for free, unlike a major international manufacturer that loses warranty when unlocked)
3. In the early years, Xiaomi mobile phones did not lock the mobile phone BL, and the mobile phone could be flashed through various software with one click after plugging the mobile phone into the computer. In 2015, Xiaomi launched the Redmi mobile phone, which is mainly aimed at the entry-level market, and achieved great success. However, due to the weak performance, it will be very slow after one or two years of use. 360 launched the Thunderbolt OS to solve the problem of redmi mobile phone lagging, claiming to make the redmi mobile phone smoother. But Raiden OS is not a new system, but only a very limited modification of the original system. It is more to bundle 360 Family Bucket and lock the phone recovery, which makes it impossible to upgrade and return to the official system. In the end, a series of failures occurred. Since Xiaomi did not prohibit users from swiping third-party systems, in addition to suing 360 for improper behavior in the court, it had to add BL locks to subsequent mobile phones to increase the difficulty of flashing and reduce system problems caused by users’ curious swiping into advertising bundles similar to Raiden OS. and property damage.
If you don’t want to wait, go to the official after-sales point stated on Xiaomi’s official website and ask if they have permission to unlock BL. If so, you can unlock it on the spot. relationship with shop assistants).
3: When will the EU/EEA/GB version be updated?
It depends on the model of the mobile phone released overseas. If you don’t know the model released overseas, go to Xiaomi’s overseas official website two to three months after the release of the domestic mobile phone to check out the new mobile phone. From the configuration and appearance, the names of domestic and overseas are different. , and some will be castrated on hardware details (the most common is the secondary camera). For example, Redmi is called redmi in China, and POCO overseas, but some Xiaomi models will also be stuffed into POCO, and there are also some low-end versions customized overseas, so you have to distinguish them one by one, or wait for others in China to distinguish them. Just come out.
After the corresponding overseas mobile phone models are released, these ROMs will be updated to the forum and official website as soon as possible. If they are not released, they will definitely not be updated. After all, Xiaomi officials do not have time, and EU version "folk" players have no resources. Generally, EU has more updated ROMs than the international version, and the corresponding domestic models will also be written, but you need to follow the list on the EU official website to find specific or more models.
Here is a list of the most recently updated EU systems for reference
Jan 2, 2022 MIUI 13 STABLE RELEASE on xiaomi.eu
N/A means that there is no adaptation (there is a high probability that it will not be adapted in the future). The recovery can only be swiped by card. Fastboot is a line-based flash, but there is a high probability that there is a card swiping package. For details, go to the download site to find the corresponding file. .
What I added
0. Under normal circumstances, if you can find the wire brush package, use the wire brush package to save trouble.
1. You can also It may not be possible to turn back every update.
After decompression, the mini official tool will prompt Unable to find flash_all.bat,
you can download the official miui flashing tool. After downloading the required drivers , manually run the two bash files sequentially.
2. The rec method mentioned in the article is unsuccessful, which may be caused by the new partition strategy of Xiaomi Mi 11u. See another article for the method of success. Or just find a card brush bag
3. 
This method has not been tried
4. https://miuiver.com/This is another website for downloading historical versions of miui
5. miui eu version
Xiaomi eu version is developed by Mi Fan in the UK. It belongs to the official and unofficial version. Based on the domestic stable version and development version, it adds the international Global version features and GApps, and simplifies most of the apps and cumbersomes that can only be used in China. Unified miuieu version (eu is the abbreviation of European Union English)
6. Download the corresponding installation package according to your model! ! ! If your mobile phone model is not included in the version number you need, then it is not! (Some mobile phone models are called differently at home and abroad. For example, my k20pro corresponds to Mi 9T Pro abroad.) If you are not sure, check the information yourself.
The following two addresses, keep in mind that you will not ask for help for future upgrades.
EU development version address: https://sourceforge.net/projects/xiaomi-eu-multilang-miui-roms/files/xiaomi.eu/MIUI-WEEKLY-RELEASES/
EU stable version address: https://sourceforge.net/ projects/xiaomi-eu-multilang-miui-roms/files/xiaomi.eu/MIUI-STABLE-RELEASES/