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Flash firmware on Xiaomi Poco X3 GT

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How to flash Xiaomi Poco X3 GT?


Why reinstall the firmware?

The operating system keeps getting errors.

Some installed applications do not open.

Many programs from the Play Market do not start.

The phone restarts by itself for no reason.

The phone started to work slowly.

You want to update the firmware, as it does not suit you in terms of functionality.





Where can I find the firmware?

On the official Internet resource of the phone manufacturer.

On specialized services on which developers lay out custom or official OS.


What should be done before installing the firmware?

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

Insert SD card. An SD card is needed to write firmware to it.

Determine your smartphone model.

Fully charge your phone battery.

Download the archive with Firmware and place it on the SD card.





Installing TWRP Recovery

Install the Official TWRP App from the Play Store on your phone. And run this application.

When you start the application for the first time, you must agree to install the firmware, as well as agree to grant the application Superuser rights and click the 'OK' button.

After moving to the next screen, select the 'TWRP FLASH' item and provide the application with root rights.

TWRP

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

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

When the file is loaded, return to the main screen of the Official TWRP App and press the 'Select a file to flash' button. Select the file downloaded in the previous step.

Click the 'FLASH TO RECOVERY' button and confirm your choice, click 'OK' in the question window.

When the message 'Flash Completed Succsessfuly!' appears. Click 'OK'. The TWRP installation procedure is now complete.

Write the firmware and other necessary files to the SD card. Using a PC or laptop card reader, it will be much faster.

Insert a SD memory card into the 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 the 'Reboot' item, and then click on the 'REBOOT RECOVERY' button. The phone will reboot into the recovery environment automatically..





Firmware via TWRP

TWRP

Before flashing, you need to delete all user data from the phone, this will avoid many problems. press 'WIPE' on the home screen.

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


TWRP

The file selection screen appears. At the very top there is a 'Storage' button for selecting an SD card.

Select the location where you copied the files. Press the 'OK' button.



TWRP

Select the firmware file and click on it. A screen opens with a warning about possible negative consequences, as well as the item 'Zip signature verification'. This item should be checked by placing a cross in the check-box, which will avoid using damaged files when writing to the phone's memory sections.

The procedure for flashing the phone will begin, accompanied by the appearance of inscriptions in the log field and the movement of the progress bar.

When the procedure for installing the firmware is completed, the message 'Successful' appears on the screen.





Summary: OS: Android 11, MIUI 12.5 for POCO; Chipset: MediaTek MT6891Z Dimensity 1100 5G (6 nm); CPU: Octa-core (4x2.6 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55); GPU: Mali-G77 MC9; Type: IPS LCD, 120Hz, HDR10, 450 nits (typ); Screen Size: 6.6 inches, 105.2 cm 2 (~84.9% screen-to-body ratio); Resolution: 1080 x 2400 pixels, 20:9 ratio (~399 ppi density); Protection: Corning Gorilla Glass Victus; Card slot: No; Internal: 128GB 8GB RAM, 256GB 8GB RAM; Triple camera: 64 MP, f/1.8, 26mm (wide), 1/1.97", 0.7Вµm, PDAF 8 MP, f/2.2, 120Лљ (ultrawide), 1/4.0", 1.12Вµm 2 MP, f/2.4, (macro); Features: LED flash, HDR, panorama; Video: 4K@30fps, 1080p@30/60/120fps; Single camera: 16 MP, f/2.5, (wide), 1/3.06", 1.0Вµ ...

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