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Flash firmware on Lenovo A3

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How to flash Lenovo A3?


Why reinstall the firmware?

Errors begin to appear in the Android operating system.

Some installed applications do not open.

Many applications from the Play Market do not start.

The phone shuts down and restarts for no apparent reason.

The phone is slow.

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





Where can I find the firmware?

On the official website of your phone manufacturer.

On Internet resources where users 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 your phone to write the firmware to it.

Find out the exact model of your smartphone.

Fully charge your device. If the battery runs out during the firmware, the device will no longer turn on.

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 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, you need to select the 'TWRP FLASH' item and give the application 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 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'.

After the burn process is complete, 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 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. You will delete all user data from the phone, this will avoid software errors and other problems.

Everything is ready to start flashing. Press the 'Install' button.


TWRP

On the file selection screen, at the very top there is a 'Storage' button for selecting an SD card.

Select the location where you copied the files.



TWRP

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, this is accompanied by the appearance of inscriptions in the log field and the movement of the progress bar.

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





Summary: SIM Quantity: Dual SIM; SIM Types: Standard SIM Card; CPU: SC7730; Processor: Quad Core, 1.2GHz; Operating System: Android 2.3; RAM: 256MB; ROM: 256MB; Support Language: French, English, German, Italian, Norwegian, Portuguese, Polish, Russian, Spanish, Turkish, Simple Chinese, Traditional Chinese, etc; Screen Size: 4.0 inch; Screen Type: Capacitive; Resolution: 800 x 480 pixels; Camera Quantity: Dual; Front Camera: 0.3MP; Back Camera: 2.0MP; Audio: MP3, AAC, WAV, OGG, AMR, etc.; Video: 3GP, MP4, AVI, etc.; Picture: GIF, JPEG, etc.; Ports: 2 x SIM card slots, 1 x TF card slot, 1 x Micro USB, 1 x 3.5mm Earphone port; Battery Types: Detachable, Li-polymer Ba ...

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