Flash firmware on Sansui S73
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How to flash Sansui S73?
Why reinstall the firmware?
Errors start to appear in the operating system.
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 turns off for no apparent reason.
The phone began to work slowly.
The OS does not match the system requirements of the smartphone.
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?
Back up your contacts and user data and transfer it to your computer.
Insert your SD card into your phone. It must have enough memory to fit the firmware.
Find information about your smartphone model.
Fully charge your device.
Find and download the archive with Firmware.
Installing TWRP Recovery
Install the Official TWRP App via the Play Market. And run this application.
When you start the application for the first time, you must agree to install a new firmware and all the risks associated with this, 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, select 'Select Device', and find 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 on the screen. Click the 'OK' button. 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. We open the menu, select the 'Reboot' item, and then click on the 'REBOOT RECOVERY' button. The phone will reboot into the recovery environment automatically.
Firmware via TWRP
Before flashing, it is recommended to clear the 'Cache' and 'Data' sections. This will delete all user data from the device, but avoid a wide range of software errors and other problems. You must press 'WIPE' on the main screen.
Now 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.
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 writing files to the phone's memory will begin, accompanied by logging and filling in the progress bar.
The completion of the firmware installation procedure is indicated by the inscription 'Successful'.
Summary: Sim Type: Dual Sim, GSM+GSM; Dual Sim: Yes; Touchscreen: Yes; Size: 5 inches, 480 x 480 pixels; Aspect Ratio: 1: 1; PPI: ~136 PPI; RAM: 1 GB; Storage: 8 GB; Card Slot: Yes; GPRS: Yes; EDGE: Yes; 3G: Yes; 4G: Yes; Wi-Fi: Yes, with wifi-hotspot; Bluetooth: Yes; GPS: Yes; 3.5mm Headphone Jack: Yes; Rear Camera: 5 MP; Front Camera: 2 MP; Operating System: Android v6.0 (Marshmallow); Processor: Quad Core Processor; Java: Yes, via 3rd party; FM Radio: Yes; Type: Removable Battery; Size: 3000 mAh; ...
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