Many applications from the Play Market do not start.
The phone restarts for no reason.
The phone slows down a lot during operation.
You are not satisfied with the possibilities of the stock firmware.
Where can I find the firmware?
On the official website of the manufacturer.
On specialized services on which various developers lay out custom or official OS.
What should be done before installing the firmware?
Back up your phone's user data.
Insert an SD card into the gadget. It must have enough memory for the firmware.
Determine your smartphone model.
Fully charge your device's battery.
Download Firmware and Place it on the SD card.
Installing TWRP Recovery
Download the Official TWRP App from the Play Market. And install it.
At the first start, you need to give consent to future manipulations, as well as consent to granting the Superuser rights to the application. Check the checkboxes and press the 'OK' button.
In the next screen, select the item 'TWRP FLASH' and provide the application with root-rights.
On the main screen of the application, click 'Select Device', and select 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.
Click the 'FLASH TO RECOVERY' button and confirm your choice, click 'OK' in the question window.
The recording process is very fast, and upon completion, the message 'Flash Completed Succsessfuly!' appears. Click 'OK'. The TWRP installation procedure can be considered complete.
Transfer the firmware and other necessary files to the SD card.
Insert a memory card into the phone.
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, 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.
You can start flashing. Click 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 storage to which the files were copied. Press the OK button.
Select the firmware file 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 writing files to the phone's memory will begin, accompanied by logging and filling in the progress bar.
After the firmware installation procedure is completed, the 'Successful' message appears on the screen.
Summary: Type: smartphone; Band: LTE, 3G (UMTS), GSM 900, GSM 1800, GSM 1900; Platform: Android; Operating system: Android 5.1; Processor: Qualcomm MSM8992; Number of processor cores: 6; CPU frequency: 1 800 MHz; RAM: 2 048 MB; Extendable Memory: 16 GB; Memory card slot: yes; Type of memory card: microSD (TransFlash), micro SDHC, micro SDXC; Dimensions (H/L/W): 153.6x76.5x9.15 mm; Housing material: metal; The number of SIM-cards: 2; Type of SIM card: nano SIM; Fingerprint ID: yes; Water protection: no; Color screen: yes; Screen Type: IPS; Number of screen colors: 16 777 216; Screen Size: 5.5; Screen Resolution: 1080x1920 px; Pixel Density: 401; Touch screen: yes; Type of touch ...
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