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Flash firmware on Videocon Infinium Z41 Aire

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How to flash Videocon Infinium Z41 Aire?


Why reinstall the firmware?

Errors begin to appear in the Android operating system.

Some applications stop opening.

Some applications from the Play Market do not start.

The phone restarts or shuts down by itself.

The phone is slow.

You are not satisfied with the functionality of the stock firmware.





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?

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

Insert your SD card into your phone. It must have enough memory to fit the firmware.

Find out the exact model of your smartphone.

Charge your phone fully.

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.

When you start the application for the first time, you must consent to future manipulations, as well as consent to granting the application Superuser rights. 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.

TWRP

On the main screen of the application, the 'Select Device' drop-down list is available, in which you need to find and select the device model for installing the recovery.

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'.

After the burn process is complete, 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 SD memory card into the phone.

To reboot in recovery, it is convenient 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. We open the menu, select the 'Reboot' item, and then tap on the 'REBOOT RECOVERY' button. The phone will reboot into the recovery environment automatically.





Firmware via TWRP

TWRP

Before flashing, you need to clear the 'Cache' and 'Data' sections, press 'WIPE' on the main screen. This will delete all user data from the device, but avoid a wide range of software errors and other problems.

Everything is ready to start flashing. Press 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. Press the OK button.



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 writing files to the device's memory will begin, accompanied by the appearance of inscriptions in the log field and the completion of the progress bar.

The completion of the installation procedure is indicated by the inscription 'Successful'.





Summary: Operating System: Android v4.4.2 (Kitkat); SIM Slot(s): Dual SIM, GSM+GSM; SIM Size: SIM1: Mini, SIM2: Mini; Network: 4G: Not Available, 3G: Available, 2G: Available; Dimensions: 118.25 (H) x 62 (W) x 10.6 (T) mm; Colours: Black White; Screen Size: 4.0 inches; Screen Resolution: 480 x 800 pixels; Pixel Density: 233 ppi; Display Type: TFT; Screen to Body Ratio: 62.06 %; Chipset: Spreadtrum SC7715; Processor: Single core, 1 GHz, Cortex A7; Graphics: Mali-400; RAM: 256 MB; Internal Memory: 512 MB; Expandable Memory: Up to 32 GB; Resolution: 3.2 MP; Flash: LED Flash; Image Resolution: 2048 x 1536 Pixels; Shooting Modes: High Dynamic Range mode (HDR); ...

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