Flash firmware on LG K12
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How to flash LG K12?
Why reinstall the firmware?
Errors start to appear in the operating system.
Some installed applications do not open.
Some programs from the Play Market do not start.
The phone restarts for no reason.
The phone is slow.
The OS does not match the system requirements of the smartphone.
Where can I find the firmware?
On the official website of your phone manufacturer.
On sites where third-party developers and phone manufacturers post custom or official OS.
What should be done before installing the firmware?
Back up your phone's user data.
Insert an SD card into your phone to write the firmware to it.
Find information about 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. Place it on the SD card.
Installing TWRP Recovery
Download the Official TWRP App from the Play Market. And install it.
When you start the application for the first time, you must consent to future manipulations, as well as consent to granting the application Superuser rights. Check the checkboxes and press 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, select 'Select Device', and find 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, go 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.
Click the 'FLASH TO RECOVERY' button and confirm your choice, click 'OK' in the question window.
After the burn process is complete, the message 'Flash Completed Succsessfuly!' appears. Click 'OK'. The TWRP installation procedure can be considered complete..
Copy the firmware and other necessary files to the SD card.
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 clear the 'Cache' and 'Data' sections, press 'WIPE' on the main screen. You will delete all user data from the phone, this will avoid software errors and other problems.
Now 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 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, 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: Colors: Blue, Gray, Black; Dimensions: 71.9 x 153 x 8.3 mm; Weight: 150 g, 0.33 lbs, 5.29 oz; Body materials: Plastic; Type: IPS; Display Colors: 24 bit, 16777216 colors; Size: 5.7 in, 144.78 mm, 14.48 cm; Screen-to-body ratio: 76.46%; Resolution: 720 x 1440 pixels; Pixel Density: 282 ppi, 110 ppcm; Display features: Multi-touch, Capacitive; Primary: 4608 x 3456 pixels, 15.93 MP; Flash: Dual LED; Video Recording: 1920 x 1080 pixels, 2.07 MP at 30 fps; Secondary: 3264 x 2448 pixels, 7.99 MP; Camera Features: Continuous shooting, Autofocus, Digital zoom, Digital image stabilization, Optical image stabilization, Geotagging, HDR, Panorama, Face detection, Touch focus, ISO settings ...
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