Flash firmware on LG G4 US991 (US Cellular)
Mobiles >> LG >> LG G4 US991 (US Cellular)| Specifications | Reviews | Secret codes |
| Unlock phone | Root phone |
| Backup | Flash Firmware | Screenshot |
How to flash LG G4 US991 (US Cellular)?
Why reinstall the firmware?
Errors in the Android OS start to appear regularly.
Some applications stop opening.
Some applications from the Play Market do not start.
The phone restarts by itself for no reason.
The phone slows down a lot during operation.
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 certain sites where developers post custom or official OS.
What should be done before installing the firmware?
Create a backup copy of user data and transfer it to your computer.
Insert your SD card into your phone. It must have enough memory to fit the firmware.
Find information about your smartphone model.
Fully charge your device's battery.
Find and download the archive with Firmware. And 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.
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.
After downloading the image file, return 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.
Press the 'FLASH TO RECOVERY' button and confirm your choice.
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 necessary files to the SD card. Using a PC or laptop card reader.
Insert a SD 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 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. 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 location where you copied the files. 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 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.
When the procedure for installing the firmware is completed, the message 'Successful' appears on the screen.
Summary: Design: Classic; SIM cards standard: Nano Sim; GSM: 850 900 1800 1900; HSDPA: 850 900 1900 2100 HSPA; LTE: 700 800 850 900 1800 1900 2100 2600; Other: CDMA 800 CDMA 1900 EvDO WCDMA; Dimensions (H/L/W): 148.9 x 76.1 x 9.8 mm, vol. 111 cm³; Display: LCD IPSColor (16M) 1440x2560px (5.5") 534ppi; Protection LCD: Corning Gorilla Glass 4; Touch screen: yes; Weight: 155 g; Time GSM (talk/stand-by): 10 / 375 hrs. (15.6d); Battery: Li-Ion 3000 mAh; Built-in memory: 32 GB; Memory card: MicroSD; RAM memory: 3 GB; Operating system: Android 5.1; Chipset: Qualcomm MSM8992; CPU 1: Snapdragon 808; CPU 1 frequency: 1800.0 MHz(6-core); GPRS: yes; EDGE: yes; HSDPA: 42 Mb/s; HSUPA ...
Comments, questions and answers on the flash firmware LG G4 US991 (US Cellular)
Ask a question about LG G4 US991 (US Cellular)