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Flash firmware on BLU Vivo XL3

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How to flash BLU Vivo XL3?


Why reinstall the firmware?

Errors periodically appear in the Android operating system.

Some installed applications stop opening.

Many programs from the Play Market do not work.

The phone restarts or shuts down for no reason.

The phone began to work slowly.

You have decided to try a different version of Android.





Where can I find the firmware?

On the phone manufacturer's website.

On sites where developers post custom or official OS.


What should be done before installing the firmware?

Create a backup copy of user data and transfer it to another medium.

Insert SD card. An SD card is needed to write firmware to it.

Find out the exact model of your smartphone.

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

Download archive with Firmware. Place it on the SD card.





Installing TWRP Recovery

Download the Official TWRP App from the Play Market. Download, install and launch the application..

When you start the application for the first time, you must agree to install a new firmware and all the risks associated with this, as well as agree to grant the application Superuser rights and click the 'OK' button.

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

TWRP

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 program redirects the user to a web page to download the corresponding image file of the modified recovery environment. 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. Select the file downloaded in the previous step.

Press the 'FLASH TO RECOVERY' button and confirm that you are ready to start the procedure - press 'OK' in the question window.

When the message 'Flash Completed Succsessfuly!' appears on the screen. Click the 'OK' button. The TWRP installation procedure is now complete.

Write the firmware to the SD card. Using a PC or laptop card reader.

Insert a memory card into the device.

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

TWRP

Before flashing, you need to delete all user data from the phone, this will avoid many problems. press 'WIPE' on the home screen.

Press the 'Install' button to start the flashing.


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. Press the 'OK' button.



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 flashing the phone will begin, accompanied by the appearance of inscriptions in the log field and the movement of the progress bar.

After completing the installation procedure, a 'Successful' message appears on the screen.





Summary: Smart Phone OS: Android 8.0 (Oreo); Chipset: Mediatek MT6737; CPU: Quad-core 1.3 GHz Cortex-A53; GPU: Mali-T720MP1; Type: IPS LCD capacitive touchscreen, 16M colors; Screen Size: 5.5 inches, 78.1 cm2 (~74.8% screen-to-body ratio); Resolution: 720 x 1440 pixels, 18: 9 ratio (~293 ppi density); Multitouch: Yes; Main Camera: 13 MP, phase detection autofocus, LED flash; Features: Geo-tagging, touch focus, face detection, panorama, HDR; Video: 1080p@30fps; Front Camera: 13 MP, LED flash; Card slot: microSD, up to 64 GB; Internal: 32 GB, 3 GB RAM; Alert types: Vibration; MP3, WAV ringtones; Loudspeaker: Yes; 3.5mm jack: Yes; WLAN: Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot; Blue ...

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