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Flash firmware on Xiaomi 12T

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How to flash Xiaomi 12T?


Why reinstall the firmware?

Errors constantly appear in the Android OS.

Some applications do not open, reinstalling which does not lead to a positive result.

Many applications from the Play Market do not start.

The phone restarts or shuts down randomly.

The phone is slow.

You are not satisfied with the possibilities of the stock firmware.





Where can I find the firmware?

On the website of your phone manufacturer.

On Internet resources where users post custom or official OS.


What should be done before installing the firmware?

Create a backup copy of user data, contacts and photos and transfer it to your computer.

Insert an SD card into your phone to write the firmware to it.

Determine your smartphone model.

Fully charge your device.

Download archive with Firmware.





Installing TWRP Recovery

Install the Official TWRP App from the Play Store on your phone.

When you start the application for the first time, you must consent to future manipulations, as well as consent to granting the application Superuser rights. Check the checkboxes and press the 'OK' button.

On the next screen, you need to select the 'TWRP FLASH' item and give the application root-rights.

TWRP

On the main screen of the application, click 'Select Device', and select your phone model.

After selecting a phone, the application will direct the user to a web page to download the modified recovery environment image file. Download the proposed *.img file.

After downloading the image file, return to the main screen of the Official TWRP App and press the 'Select a file to flash' button. Then we tell the program the path where the file loaded in the previous step is located.

Press the 'FLASH TO RECOVERY' button and confirm your choice.

After the burn process is complete, the message 'Flash Completed Succsessfuly!' appears. Click 'OK'. The TWRP installation procedure can be considered complete..

Copy the necessary files to the SD memory card. Using a PC or laptop card reader.

Insert a memory card into your phone.

To reboot into recovery, you need to enter the menu accessible by pressing the button with three stripes in the upper left corner of the main screen of the application. Select 'Reboot' and then click on the 'REBOOT RECOVERY' button.





Firmware via TWRP

TWRP

Before flashing, you need to clear the 'Cache' and 'Data' sections, press 'WIPE' on the main screen. You will delete all user data from the phone, this will avoid software errors and other problems.

You can start flashing. Click the 'Install' button.


TWRP

The file selection screen is displayed. At the very top is the 'Storage' button, which allows you to switch between types of memory.

Select the location where you copied the files.



TWRP

Select the firmware file and click on it. A screen opens with a warning about possible negative consequences, you need to check the item 'Zip signature verification', which will avoid using corrupted files when writing to the phone's memory sections.

The procedure for writing files to the phone's memory will begin, this is accompanied by the appearance of inscriptions in the log field and the movement of the progress bar.

After the firmware installation procedure is completed, the 'Successful' message appears on the screen.





Summary: Smart Phone OS: Android v12; Custom UI: MIUI; CPU: Octa core (2.85 GHz, Quad core, Cortex A78 2 GHz, Quad core, Cortex A55); Chipset: MediaTek Dimensity 8100 MT6895Z; Architecture: 64 bit; GPU: Mali-G610 MC6; RAM: 8 GB; RAM Type: LPDDR5; Screen Size: 6.67 inches (16.94 cm); Screen Resolution: 1220 x 2712 pixels; Aspect Ratio: 20:9; Display Type: AMOLED; Display dots per inch: 446 ppi; Touch Screen: Yes, Capacitive Touchscreen, Multi-touch; Refresh Rate: 120 Hz; Brightness: 900 nits; HDR 10 / HDR support: Yes, HDR 10; Bezel-less display: Yes with punch-hole display; Screen Protection: Corning Gorilla Glass v5; Internal Memory: 128 GB; Expandable Memory: No; USB OTG: Yes; Storage Type: ...

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