Flash firmware on Jesy J11
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How to flash Jesy J11?
Why reinstall the firmware?
Errors constantly appear in the Android operating system.
Some applications stop opening.
Some programs from the Play Market do not start.
The phone restarts or shuts down randomly.
The phone slows down a lot during operation.
You are not satisfied with the functionality of the stock (official) firmware.
Where can I find the firmware?
On the official website of the 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, contacts and photos and transfer it to your computer.
Insert an SD card into the gadget. It must have enough memory for the firmware.
Determine your smartphone model.
Fully charge your device's battery.
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.
At the first start, you need to give consent to future manipulations, as well as consent to granting the Superuser rights to the application. Check the checkboxes and press the 'OK' button.
In 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 the phone, the application will redirect 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. Select the file downloaded in the previous step.
Press the 'FLASH TO RECOVERY' button and confirm your choice.
The recording process is very fast, and upon completion, 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 memory card into your 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, it is recommended to clear the 'Cache' and 'Data' sections. This will delete all user data from the device, but avoid a wide range of software errors and other problems. You must press 'WIPE' on the main 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 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, accompanied by logging and filling in the progress bar.
After completing the installation procedure, a 'Successful' message appears on the screen.
Summary: OS: Android 8.0 Oreo; Processor: MediaTek Helio P20 MT6757; Processor clock: 2.34 GHz; Number of cores: 8; GPU: ARM Mali-T880 MP2 @900 MHz; RAM: 4 GB; Internal memory: 64 GB; Memory cards: yes; microSD, microSDHC, microSDHC (up to 256 GB); Display: Color / IPS TFT; 16M colors, 60 Hz; 1080 x 1920 px (5.00") 441 ppi; 55.6% screen-to-body ratio; Display protection: Corning Gorilla Glass; Type: Standard; Photo matrix: 16 Mpx; Flash: yes LED; Digital zoom: yes; Video formats: H.264, H.265, MPEG4; Additional: AF, EIS, f/2.2; Type: Portrait; Photo matrix: 8 Mpx; Flash: yes; Digital zoom: yes; Additional: FF; A-GPS: yes; GPS module: yes; Bluetooth: yes v4.1; EDGE: yes; GPRS: yes; GLONASS: yes; Beid ...
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