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Flash firmware on Cubot P30

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How to flash Cubot P30?


Why reinstall the firmware?

The operating system keeps getting errors.

Some applications stop opening.

Many applications from the Play Market do not start.

The phone restarts or shuts down by itself.

The phone began to slow down a lot.

You want to update the firmware, as it does not suit you in terms of functionality.





Where can I find the firmware?

On the official Internet resource of the phone manufacturer.

On Internet resources where users post custom or official OS.


What should be done before installing the firmware?

Create a backup copy of all personal information: contacts, photos and transfer it to another computer.

Insert your SD card into your phone. An SD card is needed to write firmware to it.

Determine your smartphone model.

Charge your phone fully.

Download archive with Firmware.





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 need to give consent to future manipulations, as well as to give consent to granting the application Superuser rights and click the 'OK' button.

After moving to the next screen, select the 'TWRP FLASH' item and provide the application with root rights.

TWRP

On the main screen of the application, click 'Select Device', and find 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, 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.

Now 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 can be considered complete.

Copy the necessary files to the SD memory card. Using a PC or laptop card reader.

Insert a SD memory card into the phone.

To reboot into recovery, you need to enter the menu accessible by pressing the button with three stripes in the upper left corner of the main screen of the application. 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 errors in the software, as well as other problems. Press 'WIPE' on the home screen.

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, you need to check the item 'Zip signature verification', which will avoid using damaged files during recording.

The procedure for flashing the phone will begin, this is accompanied by the appearance of inscriptions in the log field and the movement of the progress bar.

When the procedure for installing the firmware is completed, the message 'Successful' appears on the screen.





Summary: OS: Android 9.0 Pie; Chipset: MediaTek Helio P23 MT6763V; CPU Speed: 4 x 2 GHz 4 x 1.5 GHz; GPU: ARM Mali-G71 MP2; Primary display: IPS LCD 6.3" 2340 x 1080 pixels 16M colors 409 ppi; Secondary display: No; RAM: 4 GB; Internal memory: 64 GB; Memory Card: MicroSD,; Video: 1920 x 1080 pixels 1080p@30fps; Secondary camera: 13 MP 4128 x 3096 pixels 1080p@30fps, Senzor type: CMOS (complementary metal-oxide semiconductor), Sensor model: Sony IMX214 Exmor RS, Sensor size: 4.69 x 3.52 mm, Pixel size: 1.127 ?µm, Crop factor: 7.38; Headphone: Yes 3.5mm; WI-FI: Yes 802.11 a/b/g/n 1; NFC: No; GPS: Yes A-GPS; Bluetooth: No; HDMI: No; Hotknot: No; USB: Yes Type-C 2.0 OTG, Mass storage; Infrared: No; Wate ...

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