Some applications from the Play Market do not start.
The phone restarts or shuts down for no reason.
The phone began to slow down a lot.
You are not satisfied with the possibilities of the stock firmware.
Where can I find the firmware?
On the official website of your 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 user data and transfer it to another medium.
Insert your SD card into your phone. An SD card is needed to write firmware to it.
Determine your smartphone model.
Fully charge your device. If the battery runs out during the firmware, the device will no longer turn on.
Find and download the archive with Firmware. And place it on the SD card.
Installing TWRP Recovery
Download the Official TWRP App from the Play Market. Download, install and launch the application..
When you start the application for the first time, you need to give consent to future manipulations, as well as to give consent to granting the application Superuser rights and click the 'OK' button.
After moving to the next screen, you need to select the 'TWRP FLASH' item and give the application root rights.
On the main screen of the application, click 'Select Device', and select 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.
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 that you are ready to start the procedure - press 'OK' in the question window.
When the message 'Flash Completed Succsessfuly!' appears. Click 'OK'. The TWRP installation procedure can be considered complete.
Transfer the necessary files to the SD card. Using a PC or laptop card reader.
Insert a memory card into the device.
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
Before flashing, you need to delete all user data from the phone, this will avoid errors in the software, as well as other problems. Press 'WIPE' on the home screen.
You can start flashing. Click the 'Install' button.
On the file selection screen, 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.
Find the file we need 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, 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: Sim Type: GSM+GSM; Dual Sim: Yes; Sim Size: Micro + Nano SIM; Dimensions: 155.5 x 77.59 x 7.9 mm; Weight: 152 g; Type: Color IPS screen; Touchscreen: Yes, with Multitouch; Size: 5.5 inches, 1080 x 1920 pixels; PPI: ~ 401 PPI; Features: Corning Gorilla Glass v4 Screen Protection; RAM: 3 GB; Internal memory: 32 GB inbuilt; Card Slot: Yes, upto 128 GB; GPRS: Yes; EDGE: Yes; 3G: Yes; 4G: Yes; Wi-Fi: Yes, with wifi-hotspot; Bluetooth: Yes, v4.1; USB: Yes, microUSB v2.0; USB Features: USB on-the-go; GPS: Yes, with A-GPS Support; Sensors: Accelerometer, Gyroscope, Compass; 3.5mm Headphone Jack: Yes; Camera: Yes, 16 MP with autofocus; Features: Face detection, Touch to focus ...
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