Flash firmware on Xiaomi Redmi Note 9
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How to flash Xiaomi Redmi Note 9?
Why reinstall the firmware?
Errors start to appear in the operating system.
Some applications stop opening.
Some applications from the Play Market do not start.
The phone turns off for no apparent reason.
The phone started to work slowly.
The OS does not match the system requirements of the smartphone.
Where can I find the firmware?
On the official website of the manufacturer.
On sites where users post custom or official OS.
What should be done before installing the firmware?
Back up your contacts and user data and transfer it to your computer.
Insert SD card. An SD card is needed to write firmware to it.
Find information about your smartphone model.
Fully charge your device's battery.
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.
In the next screen, select the item 'TWRP FLASH' and provide the application with root-rights.
On the main screen of the application, select 'Select Device', and find 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, go 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, press 'OK'.
When the message 'Flash Completed Succsessfuly!' appears. Click 'OK'. The TWRP installation procedure is now complete.
Copy the firmware and other necessary files to the SD card.
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. We open the menu, select the 'Reboot' item, and then click on the 'REBOOT RECOVERY' button. The phone will reboot into the recovery environment automatically.
Firmware via TWRP
Before flashing, you need to delete all user data from the phone, this will avoid many problems. press 'WIPE' on the home screen.
Now you can start flashing. Click the 'Install' button.
The file selection screen is displayed. At the very top is the 'Storage' button, select the location where the firmware file is located.
Select the location where the files were copied.
Find the file we need 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 flashing the phone will begin, accompanied by the appearance of inscriptions in the log field and the movement of the progress bar.
The completion of the firmware installation procedure is indicated by the inscription 'Successful'.
Summary: Operating system: Android 10, MIUI 11; Processor: Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55); Chipset: MediaTek Helio G85 (12nm); GPU: Mali-G52 MC2; Internal memory: 64GB 3GB RAM, 128GB 4GB RAM; External memory: microSDXC (dedicated slot); Type: IPS LCD capacitive touchscreen, 16M colors; Size: 6.53 inches, 104.7 cm 2; Resolution: 1080 x 2340 pixels, 19.5:9 ratio; Protection: Corning Gorilla Glass 5; Body: Splash-proof coating; Body build: Glass front (Gorilla Glass 5), plastic frame; SIM: Dual SIM (Nano-SIM, dual stand-by); Dimensions: 162.3 x 77.2 x 8.9 mm (6.39 x 3.04 x 0.35 in); Weight: 199 g (7.02 oz); Colors: Forest Green, Midnight Grey, Polar White; 2G Network: GSM 850 / ...
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