Flash firmware on Samsung Galaxy F12 NFC
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How to flash Samsung Galaxy F12 NFC?
Why reinstall the firmware?
Errors constantly appear in the Android OS.
Some applications do not open, reinstalling which does not lead to a positive result.
Many programs 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 website of your phone manufacturer.
On specialized services where users 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.
Find and download the archive with Firmware.
Installing TWRP Recovery
Download and install the Official TWRP App from the Play Market.
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.
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, click 'Select Device', and select your phone model.
After selecting a phone, the application will direct 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, press 'OK'.
When the message 'Flash Completed Succsessfuly!' appears. Click 'OK'. The TWRP installation procedure is now complete.
Copy the required files to the memory 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, which allows you to switch between types of memory.
Select the storage to which the files were copied.
Find the file we need 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 11; Processor: Samsung Exynos 850; Processor clock: 2.00 GHz; Number of cores: 8; RAM: 4 GB; Internal memory: 64 GB, 128 GB; Interface: One UI 3.1; Memory cards: yes; microSD, microSDHC, microSDXC (up to 512 GB); Display: Color / IPS TFT; 16M colors, 90 Hz; 720 x 1600 px (6.50") 270 ppi; 85.3% screen-to-body ratio; Display protection: yes; Type: Standard; Photo matrix: 48 Mpx; Resolution: 8000x6000 px; Sensor size: 1/2; Flash: yes LED; Digital zoom: 10x; Video formats: H.264, H.265, MPEG4 - 30 fps; Video resolution: 3840x2160; Additional: AF, f/2.0; Type: Portrait; Photo matrix: 8 Mpx; Flash: yes; Digital zoom: yes; Additional: FF, f/2.2; A-GPS: yes; GPS module: yes; Bluetooth: ...
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