Errors in the operation of the Android OS begin to appear.
Some applications stop opening.
Many programs from the Play Market do not start.
The phone shuts down and restarts for no apparent reason.
The phone started to work slowly.
You want to update your firmware.
Where can I find the firmware?
On the official Internet resource of the phone manufacturer.
On specialized services 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 another medium.
Insert your SD card into your phone. An SD card is needed to write firmware to it.
Remember your smartphone model.
Charge your phone fully.
Find and download the archive with Firmware.
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.
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.
When the file is loaded, you need to 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.
After adding the image file to the program, click the 'FLASH TO RECOVERY' button and confirm your choice, click 'OK'.
When the message 'Flash Completed Succsessfuly!' appears. Click 'OK'. The TWRP installation procedure is now complete.
Copy the required files to the memory card. Using a PC or laptop card reader.
Insert a 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 errors in the software, as well as other problems. Press 'WIPE' on the home screen.
Now you can start flashing. Press the 'Install' button.
The file selection screen appears. At the very top is the 'Storage' button, select the location where the firmware file is located.
Select the storage to which the files were copied.
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.
The completion of the firmware installation procedure is indicated by the inscription 'Successful'.
Summary: Type: smartphone; Band: 3G (UMTS), GSM 900, GSM 1800, GSM 1900; Platform: Android; Smart Phone OS: Android 4.4; Processor: MediaTek MT6572M; Number of processor cores: 2; CPU frequency: 1 200 MHz; GPU: Mali-400; RAM: 512 Mb; Internal RAM: 4 GB; Memory Card Slot: yes; Memory card support: microSD (TransFlash), micro SDHC; The maximum amount of memory card: 32 GB; Dimensions (WxHxT): 136x66x8.7x100 mm; Enclosure type: classic; Housing material: plastic; The number of SIM-cards: 2; SIM: Mini-SIM; Navigation key: no; Fingerprint: no; Water resistant: no; Shock-resistant enclosure: no; Color screen: yes; Screen type: IPS; The number of screen colors: 16 777 216; Screen Si ...
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