Flash firmware on Huawei Mate 20
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How to flash Huawei Mate 20?
Why reinstall the firmware?
Errors periodically appear in the Android operating system.
Some installed applications stop opening.
Many applications from the Play Market do not start.
The phone shuts down and restarts for no apparent reason.
The phone started to work slowly.
You have decided to try a different version of Android.
Where can I find the firmware?
On the phone manufacturer's website.
On specialized services on which various developers lay out custom or official OS.
What should be done before installing the firmware?
Back up your contacts and user data and transfer it to another medium.
Insert SD card. An SD card is needed to write firmware to it.
Find out the exact model of your smartphone.
Fully charge your phone. If the battery runs out during boot, the device will no longer turn on.
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.
Going to the next screen, select the item 'TWRP FLASH' and provide the application with 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 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.
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.
After adding the image file to the program, click the 'FLASH TO RECOVERY' button and confirm your choice, click '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 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 appears. At the very top there is a 'Storage' button for selecting an SD card.
Select the storage to which the files were copied. Press the OK button.
Find the file we need 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.
After completing the installation procedure, a 'Successful' message appears on the screen.
Summary: Size: 74.0 mm x 152.0 mm x 7.5 mm; Aspect Ratio: 18: 9; Weight: 165 g; Usable surface: 80 %; Materials: Aluminium alloy; Resistance certificates (dust, water): IP67; Colors: Blue Brown Gray; Origami: Print 3D Model; Diagonal: 6"; Screen Type: Oled; Screen Resolution: 1080 x 2160 px (FHD ); Density: Very high density, 402 Pixels per inch differentiable less than 5 cm away; Others: 70000: 1 contrast ratio, Capacitive, Corning Gorilla Glass, HDR10, LED Notifications, Multi-touch, NTSC, Scratch resistant; Operating System: Android 8.0 Oreo; Model: Huawei HiSilicon KIRIN 980; CPU: 4x 2.4 GHz ARM Cortex-A73 4x 1.8 GHz ARM Cortex-A53; Type: Octa-Core; Frequency: 2.4 GHz; 64 Bits ...
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