Flash firmware on Samsung Galaxy S3 SGH-N074
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How to flash Samsung Galaxy S3 SGH-N074?
Why reinstall the firmware?
Errors periodically appear in the Android operating system.
Some applications stop opening.
Many programs from the Play Market do not start.
The phone restarts or shuts down for no reason.
The phone started to work slowly.
You have decided to try a different version of Android.
Where can I find the firmware?
On the official Internet resource of the 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 and transfer it to another medium.
Insert your SD card into your phone. An SD card is needed to write firmware to it.
Find out the exact model of your smartphone.
Charge your phone fully.
Find and download the archive with Firmware.
Installing TWRP Recovery
Download the Official TWRP App from the Play Market. Download, install and launch the application..
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, select the 'TWRP FLASH' item and provide the application with root rights.
On the main screen of the application, click on the 'Select Device' drop-down list, 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.
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 that you are ready to start the procedure - press 'OK' in the question window.
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 the device.
To reboot into recovery, you need 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. Open the menu and select the 'Reboot' item, 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 errors in the software, as well as other problems. Press 'WIPE' on the home screen.
Press the 'Install' button to start the flashing.
The file selection screen appears. 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.
Find the file we need 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, this is accompanied by the appearance of inscriptions in the log field and the movement of the progress bar.
After completing the installation procedure, a 'Successful' message appears on the screen.
Summary: OS: Android 4.0.4 Ice Cream Sandwich; Chipset: Samsung Exynos 4 Quad 4412; CPU Speed: 1.4 GHz; GPU: ARM Mali-400 MP4; Primary display: SUPER AMOLED 4.8" 1280 x 720 pixels 16M colors HD, 306 ppi, Corning Gorilla Glass 2; Secondary display: No; RAM: 1 GB; Internal memory: 16 GB; Memory Card: MicroSD, Up to 64 GB; Primary camera: 8 MP 3264 x 2448 pixels LED flash Auto-focus, Simultaneous HD video recording, Simultaneous HD image recording, Geo-tagging, Touch-focus, Face detection, Smile detection, Image stabilization; Video: 1920 x 1080 pixels 1080p@30fps; Secondary camera: 1.9 MP 1600 x 1200 pixels 720p@30fps; Headphone: Yes 3.5mm; WI-FI: Yes 802.11 a/b/g/n, DLNA 1; NFC: Yes; GPS: Yes A-GPS, ...
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