Flash firmware on Jivi Prime P390
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How to flash Jivi Prime P390?
Why reinstall the firmware?
Errors periodically appear in the Android operating system.
Some installed applications do not open.
Some applications from the Play Market do not start.
The phone shuts down and restarts for no apparent reason.
The phone slows down a lot during operation.
You have decided to try a different version of Android.
Where can I find the firmware?
On the official Internet resource of the phone manufacturer.
On certain 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 another medium.
Insert an SD card into the gadget. It must have enough memory for the firmware.
Find out the exact model of your smartphone.
Fully charge your phone battery.
Find and download the archive with 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.
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.
After moving to the next screen, select the 'TWRP FLASH' item 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 application will direct the user to a web page to download the appropriate modified recovery environment image file. Download the suggested *.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. Then we tell the program the path where the file loaded in the previous step is located.
After adding the image file to the program, click the 'FLASH TO RECOVERY' button and confirm your choice, click 'OK'.
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.
Transfer the necessary files to the SD card. Using a PC or laptop card reader.
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, 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.
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 location where you copied the files. 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 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: Performance: Quad core; Display: 5.0" (12.7 cm); Storage: 16 GB; Camera: 8 MP; Battery: 2400 mAh; RAM: 1 GB; Fingerprint sensor position: Rear; Sensors: Accelerometer; Fingerprint sensor: Yes; Operating system: Android v7.0 (Nougat); Sim slots: Dual SIM, GSM GSM; Network: 4G: Available 3G: Available, 2G: Available; Fingerprint sensor: Yes; Loudspeaker: Yes; Fm radio: Yes; Audio jack: 3.5 mm; Processor: Quad core, 1.3 GHz; RAM: 1 GB; Colours: Gold, Grey; Display type: IPS LCD; Pixel density: 294 ppi; Screen size: 5.0 inches (12.7 cm); Screen resolution: HD (720 x 1280 pixels); Touch screen: Yes Capacitive Touchscreen, Multi-touch; Internal memory: 16 GB; Expandable ...
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