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Flash firmware on LG K42

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How to flash LG K42?


Why reinstall the firmware?

Errors start to appear in the operating system.

Some applications stop opening.

Some programs from the Play Market do not start.

The phone turns off for no apparent reason.

The phone slows down a lot during operation.

The OS does not match the system requirements of the smartphone.





Where can I find the firmware?

On the official website of the manufacturer.

On specialized resources 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 your computer.

Insert an SD card into the gadget. It must have enough memory for the firmware.

Find information about your smartphone model.

Fully charge your device's battery.

Find and download the archive with Firmware. Place it on the SD card.





Installing TWRP Recovery

Install the Official TWRP App via the Play Market. And run this application.

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.

TWRP

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.

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.

Now press the 'FLASH TO RECOVERY' button and confirm your choice, press 'OK'.

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.

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 the device.

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

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.

Now you can start flashing. Click the 'Install' button.


TWRP

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..



TWRP

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 damaged files during recording.

The procedure for writing files to the phone's memory will begin, accompanied by logging and filling in the progress bar.

The completion of the firmware installation procedure is indicated by the inscription 'Successful'.





Summary: Operating system: Android 10; Processor: Octa-core 2.0 GHz Cortex-A53; Chipset: Mediatek MT6762 Helio P22 (12 nm); GPU: PowerVR GE8320; Internal memory: 64GB 3GB RAM; External memory: microSDXC; Type: IPS LCD; Size: 6.6 inches, 105.2 cm 2; Resolution: 720 x 1600 pixels, 20:9 ratio; Body: MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions; SIM: Dual SIM (Nano-SIM, dual stand-by); Dimensions: 165 x 76.7 x 8.4 mm (6.50 x 3.02 x 0.33 in); Weight: 182 g (6.42 oz); Colors: Gray; 2G Network: GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2; 3G Network: HSDPA 850 / 900 / 1900 / 2100; 4G Network: LTE (unspecified); WLAN: Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot; Bluetoot ...

Comments, questions and answers on the flash firmware LG K42


NitinApril 21, 2024
Can we install coustom rom in lg k42



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