Flash firmware on LG E450 Optimus L5 II
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How to flash LG E450 Optimus L5 II?
Why reinstall the firmware?
Errors in the Android OS start to appear regularly.
Some applications stop opening.
Many applications 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 the firmware, as it does not suit you in terms of functionality.
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?
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.
Find information about your smartphone model.
Fully charge your device's battery.
Download Firmware and 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 need to give consent to future manipulations, as well as to give consent to granting the application Superuser rights and click 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 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.
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.
Press the 'FLASH TO RECOVERY' button and confirm your choice.
When 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 your 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 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. 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, 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.
When the procedure for installing the firmware is completed, the message 'Successful' appears on the screen.
Summary: Design: Classic; SIM cards standard: Mini Sim - Regular; GSM: 850 900 1800 1900; HSDPA: 900 2100; Dimensions (H/L/W): 117.5 x 62.2 x 9.2 mm, vol. 67 cm³; Display: LCD IPSColor (16M) 480x800px (4.0") 233ppi; Touch screen: yes; Weight: 103 g; Time GSM (talk/stand-by): 10 / 550 hrs. (22.9d); Time UMTS (talk/stand-by): 9 / 550 hrs. (22.9d); Battery: Li-Ion 1700 mAh; Built-in memory: 4 GB; Memory card: MicroSD max. 32 GB; RAM memory: 512 MB; Operating system: Android 4.1; Chipset: MTK 6575; CPU 1 frequency: 1000.0 MHz; GPRS: Class 12; EDGE: Class 12; HSDPA: 7,2 Mb/s; HSUPA speed: 5,76 Mb/s; HSCSD: no; Wi-Fi: 802.11 a/b/g/n; Bluetooth: 3.0; NFC: yes; USB: 2.0; IrDA ...
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