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Flash firmware on Xiaomi 15

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How to flash Xiaomi 15?


Why reinstall the firmware?

Errors periodically appear in the Android operating system.

Some applications stop opening.

Some applications from the Play Market do not start.

The phone restarts or shuts down by itself.

The phone started to work slowly.

You have decided to try a different version of Android.





Where can I find the firmware?

On the official Internet resource of the phone manufacturer.

On certain sites where developers post custom or official OS.


What should be done before installing the firmware?

Create a backup copy of all personal information: contacts, photos and transfer it to another computer.

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

Find out the exact model of your smartphone.

Charge your phone fully.

Find and download the archive with Firmware. And place it on the SD card.





Installing TWRP Recovery

Download the Official TWRP App to your phone from the Play Market. And install this app.

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 on the 'Select Device' drop-down list, and select your phone model.

After selecting the phone, the application will redirect 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.

Now press the 'FLASH TO RECOVERY' button and confirm your choice, press 'OK'.

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

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

Insert a SD memory card into the phone.

To reboot into recovery, you need to use a special item in the Official TWRP App menu, accessible by pressing the button with three stripes in the upper left corner of the main screen of the application. Open the menu and select the 'Reboot' item, and then click on the 'REBOOT RECOVERY' button.





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.

Press the 'Install' button to start the flashing.


TWRP

The file selection screen appears. At the very top is the 'Storage' button, select the location where the firmware file is located.

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, you need to check the item 'Zip signature verification', which will avoid using damaged files during recording.

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.

After completing the installation procedure, a 'Successful' message appears on the screen.





Summary: OS: Android 15, HyperOS 2; Chipset: Qualcomm SM8750-AB Snapdragon 8 Elite (3 nm); CPU: Octa-core (2x4.32 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M); GPU: Adreno 830; Type: LTPO OLED, 1B colors, 120Hz, Dolby Vision, HDR10+, 3200 nits (peak); Screen Size: 6.36 inches, 97.6 cm 2 (~90.0% screen-to-body ratio); Resolution: 1200 x 2670 pixels, 20:9 ratio (~460 ppi density); Protection: Shatterproof glass; Card slot: No; Internal: 256GB 12GB RAM, 512GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM; Triple camera: 50 MP, f/1.6, 23mm (wide), 1/1.31", 1.2µm, dual pixel PDAF, OIS 50 MP, f/2.0, 60mm (telephoto), PDAF (10cm - ∞), OIS, 3x optical zoom 50 MP, f/2.2, 14mm, 115˚ (ultrawide); Features: Laser AF, Leica lens, Dual-LED dual-tone flash, HDR, panorama; Video: 8K@24/30fps (HDR), 4K@24/ ...

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