Flash firmware on LG L4 II Dual-E445
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How to flash LG L4 II Dual-E445?
Why reinstall the firmware?
Errors in the operation of the Android OS begin to appear.
Apps won't open.
Many programs from the Play Market do not work.
The phone restarts or shuts down randomly.
The phone is slow.
You want to update your firmware.
Where can I find the firmware?
On the website of your phone manufacturer.
On sites where third-party developers post custom operating systems.
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. It must have enough memory to fit the firmware.
Remember your smartphone model.
Fully charge your device. If the battery runs out during the firmware, the device will no longer turn on.
Download archive with Firmware. Place it on the SD card.
Installing TWRP Recovery
Install the Official TWRP App from the Play Store on your phone.
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.
On 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 the phone, the program will redirect the user to a web page to download the corresponding image file of the modified recovery environment. Download the proposed *.img file.
When the download is finished, you need to return to the main screen of the Official TWRP App and click on 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.
After the burn process is complete, the message 'Flash Completed Succsessfuly!' appears. Click 'OK'. The TWRP installation procedure can be considered complete..
Transfer the necessary files to the SD memory 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 clear the 'Cache' and 'Data' sections, press 'WIPE' on the main screen. This will delete all user data from the device, but avoid a wide range of software errors and other problems.
Now you can start flashing. Press the 'Install' button.
On the file selection screen, at the very top there is a 'Storage' button for selecting an SD card.
Select the storage to which the files were copied.
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 corrupted files when writing to the phone's memory sections.
The procedure for writing files to the device's memory will begin, accompanied by the appearance of inscriptions in the log field and the completion of the progress bar.
The completion of the firmware installation procedure is indicated by the inscription 'Successful'.
Summary: Band: GSM 900/1800/1900, 3G; Type: smartphone; Platform: Android; Enclosure type: classic; Type of SIM card: plain; The number of SIM-cards: 2; Weight: 125 g; Dimensions (WxHxT): 64.7x112.8x11.9 mm; Screen type: color IPS, touch; Touch screen type: multitouch capacitive; Diagonal: 3.8 inch.; Image size: 320x480; The number of pixels per inch (PPI): 152; Automatic screen rotation: yes; Ringtones type: polyphonic, MP3 ringtones; Vibrating alert: yes; Camera: 3 million pixels., led flash; Recording movies: yes; Video playback: MPEG4, H.263, H.264; Audio: MP3, AAC, FM-radio; Interfaces: USB, Wi-Fi, Wi-Fi Direct, Bluetooth 3.0; Satellite navigation: GPS; ...
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