Errors begin to appear in the Android operating system.
Some installed applications do not open.
Some programs from the Play Market do not start.
The phone restarts or shuts down randomly.
The phone started to work slowly.
You are not satisfied with the functionality of the stock firmware.
Where can I find the firmware?
On the official website of your phone manufacturer.
On specialized resources where users post custom or official OS.
What should be done before installing the firmware?
Create a backup copy of user data, contacts and photos and transfer it to your computer.
Insert SD card. An SD card is needed to write firmware to it.
Find out the exact model of your smartphone.
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. Place it on the SD card.
Installing TWRP Recovery
Install the Official TWRP App from the Play Store on your phone.
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, you need to select the 'TWRP FLASH' item and give the application root rights.
On the main screen of the application, the 'Select Device' drop-down list is available, in which you need to find and select the device model for installing the recovery.
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, go 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. Click 'OK'. The TWRP installation procedure is now complete.
Copy the required files to the SD card. Using a PC or laptop card reader, it will be much faster.
Insert a memory card into your phone.
To reboot in recovery, it is convenient 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 tap 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.
Everything is ready to start flashing. Press 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..
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 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 installation procedure is indicated by the inscription 'Successful'.
Summary: OS: Android (4.0.4); Dimensions: 5 megapixels; Flash: LED; Features: Autofocus, Smile detection, ISO control, White balance presets, Digital zoom, Geo tagging, Panorama, Effects; Camcorder: 640x480 (VGA); Features: Video calling; Front-facing camera: 0.3 megapixels VGA; System chip: Qualcomm Snapdragon S1 MSM7227A; Processor: Single core, 1000 MHz, ARM Cortex-A5; Graphics processor: Adreno 200 (enhanced); System memory: 768 MB RAM; Built-in storage: 4 GB; Storage expansion: microSD, microSDHC up to 32 GB; Talk time: 12.83 hoursthe average is 11 h (671 min); Stand-by time: 23.8 days (570 hours)the average is 20 days (478 h); Talk time (3G): 8.66 hoursthe average is 15 h (906 mi ...
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