Flash firmware on Samsung Galaxy S4 AT&T
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How to flash Samsung Galaxy S4 AT&T?
Why reinstall the firmware?
Errors constantly appear in the Android OS.
Some applications stop opening.
Some applications from the Play Market do not start.
The phone restarts or shuts down randomly.
The phone started to work slowly.
You are not satisfied with the possibilities of the stock firmware.
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, contacts and photos and transfer it to your computer.
Insert SD card. An SD card is needed to write firmware to it.
Determine 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 from the Play Store on your phone.
When you start the application for the first time, you must agree to install the firmware, as well as agree to grant 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 select 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.
When the message 'Flash Completed Succsessfuly!' appears. Click 'OK'. The TWRP installation procedure is now complete.
Transfer the necessary files to the SD card. Using a PC or laptop card reader.
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 'Reboot' and then click on the 'REBOOT RECOVERY' button.
Firmware via TWRP
Before flashing, you need to delete all user data from the phone, this will avoid many problems. press 'WIPE' on the home screen.
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 flashing the phone will begin, accompanied by the appearance of inscriptions in the log field and the movement of the progress bar.
After the firmware installation procedure is completed, the 'Successful' message appears on the screen.
Summary: OS: Android 4.2.2 Jelly Bean; Processor: Qualcomm Snapdragon 600 8064AB; Processor clock: 1.90 GHz; Number of cores: 4; GPU: Adreno 320 @450 MHz; RAM: 2 GB; Internal memory: 16 GB; Memory cards: yes; microSD, microSDHC, microSDXC (up to 64 GB); Display: Color / Super AMOLED; 16M colors; 1080 x 1920 px (5.00") 441 ppi; 72.5% screen-to-body ratio; Display protection: yes; Photo matrix: 13 Mpx; Resolution: 4128x3096 px; Flash: yes LED; Digital zoom: 4x; Video formats: H.263, H.264, MPEG4 - 30 fps; Video resolution: 1920x1080; Additional: AF; Photo matrix: 2 Mpx; Resolution: 1936x1036 px; Flash: yes; Digital zoom: yes; A-GPS: yes; GPS module: yes; Bluetooth: yes v4.0 LE; EDGE: yes class 12; GPR ...
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