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Flash firmware on ZTE Blade 20 Smart

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How to flash ZTE Blade 20 Smart?


Why reinstall the firmware?

The operating system keeps getting errors.

Some applications do not open, reinstalling which does not lead to a positive result.

Some programs from the Play Market do not start.

The phone turns off for no apparent reason.

The phone began to slow down a lot.

You want to update the firmware, as it does not suit you in terms of functionality.





Where can I find the firmware?

On the website of your phone manufacturer.

On sites where third-party developers and phone manufacturers 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 an SD card into your phone to write the firmware to it.

Determine your smartphone model.

Fully charge your device.

Find and download the archive with Firmware. 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 need to give consent to future manipulations, as well as to give consent to granting 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.

TWRP

On the main screen of the application, click '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.

After downloading the image file, go to the main screen of the Official TWRP App and press the 'Select a file to flash' button. Then we tell the program the path where the file loaded in the previous step is located.

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 can be considered complete.

Copy 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 enter the menu accessible by pressing the button with three stripes in the upper left corner of the main screen of the application. Select the 'Reboot' item, and then click on the 'REBOOT RECOVERY' button. The phone will reboot into the recovery environment automatically..





Firmware via TWRP

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.

You can start flashing. Click the 'Install' button.


TWRP

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 location where the files were copied. Press the OK button.



TWRP

Find the file we need 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.

When the procedure for installing the firmware is completed, the message 'Successful' appears on the screen.





Summary: OS: Android v9.0 (Pie); Chipset: MediaTek Helio P60; CPU: Octa core (2 GHz, Quad core, Cortex A53 2 GHz, Quad core, Cortex A53); Architecture: 64 bit; RAM: 4 GB; GPU: Mali-G72 MP3; Screen Size: 6.49 inches; Screen Resolution: 720 x 1560 pixels; Screen type: IPS LCD; Pixel density: 265 ppi; Aspect ratio: 19.5:9; Bezelless display: Yes with waterdrop notch; Touch screen: Yes Capacitive Touchscreen, Multi-touch; Internal memory: 128 GB; Expandable memory: Yes Up to 256 GB; Front camera: 16 MP; Main camera: 16 MP 8 MP 2 MP; Resolution: 16 MP Front Camera; Flash: Yes LED Flash; Image resolution: 4616 x 3464 Pixels; Autofocus: Yes; Shooting modes: Continuos Shooting, High Dynamic Range mode (HDR) ...

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ZTE Blade 20 Smart