Flash firmware on Samsung Galaxy Note II AT&T
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How to flash Samsung Galaxy Note II AT&T?
Why reinstall the firmware?
Errors begin to appear in the Android operating system.
Some installed applications do not open.
Many applications from the Play Market do not start.
The phone restarts for no reason.
The phone started to work slowly.
You are not satisfied with the functionality of the stock firmware.
Where can I find the firmware?
On the official website of your phone manufacturer.
On Internet resources where users post custom or official OS.
What should be done before installing the firmware?
Back up your phone's user data.
Insert SD card. An SD card is needed to write firmware to it.
Find out the exact model of your smartphone.
Fully charge your device. If the battery runs out during the firmware, the device will no longer turn on.
Download archive with Firmware.
Installing TWRP Recovery
Download the Official TWRP App from the Play Market. And install it.
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.
After moving to the next screen, you need to select the 'TWRP FLASH' item and give the application root rights.
On the main screen of the application, the 'Select Device' drop-down list is available, in which you need to find and select the device model for installing the recovery.
After selecting a device, the application will direct the user to a web page to download the appropriate modified recovery environment image file. Download the suggested *.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.
Click the 'FLASH TO RECOVERY' button and confirm your choice, click 'OK' in the question window.
When the message 'Flash Completed Succsessfuly!' appears. Click 'OK'. The TWRP installation procedure is now complete.
Copy the necessary files to the SD memory card. Using a PC or laptop card reader.
Insert a memory card into the phone.
To reboot in recovery, it is convenient 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 tap 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 many problems. press 'WIPE' on the home screen.
Everything is ready to 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 location where you copied the files.
Select the firmware file and click on it. A screen opens with a warning about possible negative consequences, as well as the item 'Zip signature verification'. This item should be checked by placing a cross in the check-box, which will avoid using damaged 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.
The completion of the installation procedure is indicated by the inscription 'Successful'.
Summary: OS: Android (4.3, 4.1.2, 4.1); Dimensions: 8 megapixels; Flash: LED; Features: Back-illuminated sensor (BSI), Autofocus, Smile detection, Burst mode, Panorama, Scenes; Camcorder: 1920x1080 (1080p HD) (30 fps); Features: Video calling; Front-facing camera: 1.9 megapixels; System chip: Samsung Exynos 4 (4412); Processor: 2048 MB RAM (Dual-channel); Built-in storage: 16 GB; Storage expansion: microSD, microSDHC, microSDXC up to 64 GB; Talk time: 15.00 hoursthe average is 11 h (675 min); Stand-by time (3G): 10.4 days (250 hours)the average is 23 days (550 h); Stand-by time (4G): 12.5 days (300 hours)the average is 23 days (554 h); Capacity: 3100 mAh; Type: Li - Ion; Wireless char ...
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