Flash firmware on Samsung SGH-T746
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How to flash Samsung SGH-T746?
Why reinstall the firmware?
Errors begin to appear in the Android OS.
Some installed applications stop opening.
Many programs from the Play Market do not start.
The phone restarts or shuts down by itself.
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 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 all personal information: contacts, photos and transfer it to another computer.
Insert SD card. An SD card is needed to write firmware to it.
Remember your smartphone model.
Fully charge your phone. If the battery runs out during boot, the device will no longer turn on.
Find and download the archive with Firmware.
Installing TWRP Recovery
Download the Official TWRP App to your phone from the Play Market. And install this app.
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, select 'TWRP FLASH' 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 program redirects the user to a web page to download the corresponding image file of the modified recovery environment. Download the suggested *.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.
Now 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 SD 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.
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.
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 damaged files during recording.
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: Aliases: Samsung Impact, Samsung T746; Type: Mobile; Battery: Li-Ion 1200 mAh; Smart Phone OS: Android 4.1.1; Dimensions: 108.5 x 53.6 x 13.9 mm; Formfactor: Bar; Keyboard: Screen; Sidekeys: Volume, Power; Weight: 105 g; Color: Yes; Colors: 16M; Other: Touchscreen; Pixel aspect ratio: 1.0; Resolution: 240x400; Display PPI: 155; Screen Size: 3; Type: TFT; Audio: MP3, AAC, AAC+, WMA, MIDI, Polyphonic; Camera: 3.15MP, 2048x1536; Other: Digital Zoom; Secondcamera: None; Videocapture: YES; Videoplayback: MPEG4, WMV, 3GP, H.264, MP4, H.263; Connectors: USB 2.0, 3.5mm Audio; Network: GSM850, GSM900, GSM1800, GSM1900, UMTS850, UMTS1900, HSDPA850, HSDPA1900, Bluetooth 2.0, ...
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