Flash firmware on Master SmartPhone 550
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How to flash Master SmartPhone 550?
Why reinstall the firmware?
Errors begin to appear in the Android OS.
Some installed applications do not open.
Some programs from the Play Market do not start.
The phone restarts by itself for no reason.
The phone began to slow down a lot.
You are not satisfied with the functionality of the stock firmware.
Where can I find the firmware?
On the official website of your phone manufacturer.
On specialized resources 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 your computer.
Insert an SD card into your phone to write the firmware to it.
Remember your smartphone model.
Fully charge your device. If the battery runs out during the firmware, the device will no longer turn on.
Find and download the archive with Firmware. Place it on the SD card.
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 need to give consent to future manipulations, as well as to give consent to granting the application Superuser rights and click the 'OK' button.
After moving to the next screen, you need to select the 'TWRP FLASH' item 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 application will direct the user to a web page to download the appropriate modified recovery environment image file. Download the suggested *.img file.
After downloading the image file, go 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.
When the message 'Flash Completed Succsessfuly!' appears. Click 'OK'. The TWRP installation procedure can be considered complete.
Copy the required files to the SD card. Using a PC or laptop card reader, it will be much faster.
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 clear the 'Cache' and 'Data' sections, press 'WIPE' on the main screen. You will delete all user data from the phone, this will avoid software errors and other problems.
Everything is ready to start flashing. Press the 'Install' button.
On the file selection screen, at the very top there is a 'Storage' button for selecting an SD card.
Select the location where you copied the files..
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 corrupted files when writing to the phone's memory sections.
The procedure for writing files to the phone's memory will begin, this is 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: Type: Mobile; CPU: Quad Core 1.5GHz; Smart Phone OS: Android 4.4.2; Formfactor: Bar; Keyboard: Screen; Sidekeys: Volume, Power; Softkeys: 3; Weight: 540 g; Color: Yes; Colors: 16M; Other: Capacitive Touchscreen, Multitouch; Pixel aspect ratio: 1.50; Resolution: 640x360; Display PPI: 200; Screen Size: 5.5; Type: IPS LCD; Audio: MP3, WAV; Camera: 8MP, 3264x2448; Other: Video Recording, LED Flash, Video Calling, Macro Mode, Music Player, Video Player; Secondcamera: 2MP, 1600x1200; Videocapture: YES, FHD@30fps; Videoplayback: MP4; Connectors: 3.5mm Audio, MicroUSB; Network: GSM850, GSM900, GSM1800, GSM1900, WIFI, 802.11b, 802.11g, 802.11n, Bluetooth, GPS; Features: Loudsp ...
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