Flash firmware on OukItel C22
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How to flash OukItel C22?
Why reinstall the firmware?
Errors constantly appear in the Android operating system.
Some applications do not open, reinstalling which does not lead to a positive result.
Many programs from the Play Market do not work.
The phone turns off for no apparent reason.
The phone started to work slowly.
You are not satisfied with the functionality of the stock (official) firmware.
Where can I find the firmware?
On the official website of the phone manufacturer.
On sites where developers 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 SD card. An SD card is needed to write firmware to it.
Determine your smartphone model.
Fully charge your phone battery.
Download 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 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.
On the main screen of the application, click on the 'Select Device' drop-down list, and select 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, 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.
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 is now complete.
Write the firmware to the SD card. Using a PC or laptop card reader.
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. 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.
Now you can start flashing. Press the 'Install' button.
The file selection screen is displayed. At the very top is the 'Storage' button, select the location where the firmware file is located.
Select the location where 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, 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 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: OS: Android 10; Processor: MediaTek Dimensity 800 MT6873; Processor clock: 2.00 GHz; Number of cores: 8; GPU: ARM Mali-G57 MC4; RAM: 8 GB; Internal memory: 128 GB; Memory cards: yes; microSD, microSDHC, microSDXC (up to 128 GB); Display: Color / IPS TFT; 16M colors, 60 Hz; 1080 x 2400 px (6.67") 395 ppi; 72.4% screen-to-body ratio; Display protection: Corning Gorilla Glass; Type: Standard; Photo matrix: 48 Mpx; Resolution: 8000x6000 px; Sensor size: 1/2; Flash: 2x LED; Digital zoom: yes; Number of lenses: 6; Video formats: H.264, H.265, MPEG4 - 30 fps; Video resolution: 3840x2160; Additional: AF, f/1.79; Type: Portrait; Photo matrix: 16 Mpx; Resolution: 4640x3488 px; Sensor size: 1/3,1; Fla ...
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