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Flash firmware on ZTE Blade A7s 2020

  Mobiles >> ZTE >> ZTE Blade A7s 2020
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How to flash ZTE Blade A7s 2020?


Why reinstall the firmware?

Errors start to appear in the operating system.

Some installed applications stop opening.

Some programs from the Play Market do not start.

The phone restarts by itself for no reason.

The phone started to work slowly.

The OS does not match the system requirements of the smartphone.





Where can I find the firmware?

On the official website of the 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 SD card. An SD card is needed to write firmware to it.

Find information about 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. Place it on the SD card.





Installing TWRP Recovery

Install the Official TWRP App from the Play Store on your phone. And run this application.

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.

TWRP

On the main screen of the application, select 'Select Device', and find your phone model.

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.

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.

Click the 'FLASH TO RECOVERY' button and confirm your choice, click 'OK' in the question window.

When the message 'Flash Completed Succsessfuly!' appears. Click 'OK'. The TWRP installation procedure is now 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 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

TWRP

Before flashing, you need to delete all user data from the phone, this will avoid many problems. press 'WIPE' on the home screen.

Now you can start flashing. Click the 'Install' button.


TWRP

The file selection screen appears. At the very top is the 'Storage' button, select the location where the firmware file is located.

Select the location where you copied the files..



TWRP

Select the firmware file and click on it. A screen opens with a warning about possible negative consequences, as well as the item 'Zip signature verification'. This item should be checked by placing a cross in the check-box, which will avoid using damaged files when writing to the phone's memory sections.

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 firmware installation procedure is indicated by the inscription 'Successful'.





Summary: Operating system: Android 10; Processor: Octa-core (4x1.6 GHz Cortex-A55 & 4x1.2 GHz Cortex-A55); Chipset: Unisoc SC9863A (28nm); GPU: IMG8322; Internal memory: 64GB 3GB RAM; External memory: microSDXC; Type: IPS LCD; Size: 6.5 inches, 103.7 cm 2; Resolution: 720 x 1560 pixels, 19.5:9 ratio; SIM: Dual SIM (Nano-SIM, dual stand-by); Dimensions: 164.7 x 77.4 x 8.2 mm (6.48 x 3.05 x 0.32 in); Weight: 182 g (6.42 oz); Colors: Black, Blue; 2G Network: GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2; 3G Network: HSDPA 850 / 900 / 1900 / 2100; 4G Network: 1, 3, 7, 8, 28; WLAN: Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot; Bluetooth: 4.2, A2DP; GPS: Yes, with A-GPS; NFC: Yes; USB: Yes; CDMA: HSDPA 850 / 2 ...

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ZTE Blade A7s 2020