Errors in the operation of the Android OS begin to appear.
Some applications do not open, reinstalling which does not lead to a positive result.
Many programs from the Play Market do not start.
The phone restarts or shuts down randomly.
The phone began to slow down a lot.
You want to update your firmware.
Where can I find the firmware?
On the official website of the phone manufacturer.
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, contacts and photos and transfer it to your computer.
Insert your SD card into your phone. An SD card is needed to write firmware to it.
Remember your smartphone model.
Fully charge your phone battery.
Download the archive with Firmware and place it on the SD card.
Installing TWRP Recovery
Download and install the Official TWRP App from the Play Market.
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.
On the next screen, select 'TWRP FLASH' and give the application root rights.
On the main screen of the application, select 'Select Device', and find your phone model.
After selecting a phone, the application will direct the user to a web page to download the modified recovery environment image file. Download the proposed *.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, press 'OK'.
When the message 'Flash Completed Succsessfuly!' appears. Click 'OK'. The TWRP installation procedure can be considered 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 memory card into your 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 is displayed. At the very top is the 'Storage' button, select the location where the firmware file is located.
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, 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, 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: LTE, 3G (UMTS), GSM 900, GSM 1800, GSM 1900; Platform: Android; Smart Phone OS: Android 4.4; Processor: MediaTek MT6732; Number of processor cores: 4; CPU frequency: 1 500 MHz; GPU: Mali-T760 MP2; RAM: 1 024 Mb; Internal RAM: 8 GB; Memory Card Slot: yes; Memory card support: microSD (TransFlash); The maximum amount of memory card: 32 GB; Year of issue: 2015; Dimensions (WxHxT): 142x71.8x8.9x149 mm; Enclosure type: classic; The number of SIM-cards: 2; SIM: Micro-SIM; Fingerprint: no; Water resistant: no; Shock-resistant enclosure: no; Color screen: yes; Curved screen: no; Screen type: IPS; The number of screen colors: 16 777 216; Screen Size: 5 ...
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