Flash firmware on Sony Xperia M Dual
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How to flash Sony Xperia M Dual?
Why reinstall the firmware?
Errors periodically appear in the Android operating system.
Some applications do not open, reinstalling which does not lead to a positive result.
Many applications from the Play Market do not start.
The phone restarts or shuts down by itself.
The phone started to work slowly.
You have decided to try a different version of Android.
Where can I find the firmware?
On the website of your phone manufacturer.
On specialized services on which various developers lay out 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.
Find out the exact model of your smartphone.
Fully charge your device.
Download Firmware and Place it on the SD card.
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, you need to select the 'TWRP FLASH' item and give the application root-rights.
On the main screen of the application, click on the 'Select Device' drop-down list, 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.
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.
Transfer the firmware and other necessary files to the SD card.
Insert a SD memory card into the phone.
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 many problems. press 'WIPE' on the home screen.
Press the 'Install' button to start the flashing.
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. 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 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.
After completing the installation procedure, a 'Successful' message appears on the screen.
Summary: Smart Phone OS: Android; Smart Phone OS ver.: 4.1 (Jelly Bean); Shape: Bar; SIM: Dual SIM; Processor Speed: 1 GHz Qualcomm dual-core; Internal Storage: 4GB; RAM: 1GB; External Storage: microSD card, up to 32 GB; Battery life: Stand-by: Up to 498 h (2G) / Up to 454 h (3G) Talk time: Up to 10 h 16 min (2G) / Up to 9 h (3G); Screen Size: 4.0 inches (~245 ppi pixel density); Resolution: 854x480; Touch Screen: yes; Screen Type: TFT capacitive multitouchscreen, 16M colorsScratch-resistant glass; Pixels: Primary 5 MP, 2592х1944 pixels, autofocus Secondary VGA; Flash: yes; Image Stabilization: yes; Waterproof: ; GPS: yes; Dimensions (WxHxD): 124 x 62 x 9.3 mm (4.88 x 2.44 x 0.37 ...
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