Flash firmware on Xiaomi Redmi 15 4G
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How to flash Xiaomi Redmi 15 4G?
Why reinstall the firmware?
Errors periodically appear in the Android operating system.
Some installed applications stop opening.
Many programs from the Play Market do not start.
The phone restarts by itself for no reason.
The phone began to work slowly.
You have decided to try a different version of Android.
Where can I find the firmware?
On the phone manufacturer's website.
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 your SD card into your phone. It must have enough memory to fit the firmware.
Find out the exact model of your smartphone.
Fully charge your phone. If the battery runs out during boot, the device will no longer turn on.
Download the archive with Firmware and place it on the SD card.
Installing TWRP Recovery
Install the Official TWRP App via the Play Market. And run this application.
When you start the application for the first time, you must agree to install a new firmware and all the risks associated with this, as well as agree to grant the application Superuser rights and click the 'OK' button.
Going to the next screen, select the item 'TWRP FLASH' and provide the application with root-rights.
On the main screen of the application, click on the 'Select Device' drop-down list, and select your phone model.
After selecting a device, the program redirects the user to a web page to download the corresponding image file of the modified recovery environment. 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.
Press the 'FLASH TO RECOVERY' button and confirm your choice.
When the message 'Flash Completed Succsessfuly!' appears on the screen. Click the 'OK' button. 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 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
Before flashing, it is recommended to clear the 'Cache' and 'Data' sections. This will delete all user data from the device, but avoid a wide range of software errors and other problems. You must press 'WIPE' on the main screen.
Press the 'Install' button to start the flashing.
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.
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, accompanied by logging and filling in the progress bar.
After completing the installation procedure, a 'Successful' message appears on the screen.
Summary: Card slot: microSDXC; Internal: 128GB 6GB RAM, 256GB 8GB RAM; OS: Android 15, HyperOS 2; Chipset: Qualcomm SM6225 Snapdragon 685 (6 nm); CPU: Octa-core (4x2.8 GHz Cortex-A73 & 4x1.9 GHz Cortex-A53); GPU: Adreno 610; Dual: 50 MP, f/1.8, (wide), PDAF Auxiliary lens; Features: LED flash, HDR; Video: 1080p@30fps; Single camera: 8 MP, f/2.0, (wide); Features: HDR; Video: 1080p@30fps; Loudspeaker: Yes; 3.5mm jack: No; WLAN: Wi-Fi 802.11 b/g/n/ac, dual-band; Bluetooth: 5.0, A2DP, LE; Positioning: GPS, GLONASS, GALILEO, BDS; NFC: Yes; Infrared port: Yes; Radio: No; USB: USB Type-C 2.0; Announced: 2025, August 01; Status: Available. Released 2025, August 01; Sensors: Fingerprint, accelerometer, compass; Type: Si/C Li-Ion 7000 mAh; Charging: 33W wired; Colors: Midnight Black, Titan Gray, Sandy ...
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