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Flash firmware on Asus A450

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How to flash Asus A450?


Why reinstall the firmware?

Errors begin to appear in the Android OS.

Some installed applications do not open.

Some applications from the Play Market do not start.

The phone restarts or shuts down by itself.

The phone slows down a lot during operation.

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 sites 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. It must have enough memory to fit the firmware.

Remember your smartphone model.

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.

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, go 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'.

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 firmware and other necessary files to the SD card.

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 there is a 'Storage' button for selecting an SD card.

Select the location where the files were copied.



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: Aliases: Asus Zenfone A450; Type: Mobile; Battery: Li-Po 1750 mAh; CPU: Intel Atom Z2520, Dual Core 1.2GHz, PowerVR SGX544; Smart Phone OS: Android 4.3; Dimensions: 136.8 x 67.9 x 11.3 mm; Formfactor: Bar; Keyboard: Screen; Sidekeys: Volume, Power; Softkeys: 3; Weight: 134 g; Color: Yes; Colors: 16M; Other: Capacitive Touchscreen, Multi Touch, Corning Gorilla Glass 3; Pixel aspect ratio: 1.50; Resolution: 320x569; Display PPI: 218; Screen Size: 4.5; Type: IPS LCD; Audio: MP3, WAV, WMA, eAAC+, MIDI, AC3, FLAC; Camera: 8MP, 3264x2448; Other: LED Flash, Video Calling, Video Recording; Secondcamera: 0.3MP, 640x480; Videocapture: YES, FHD@30fps; Videoplayback: MP4, H.2 ...

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