Flash firmware on BLU Vivo 4.8 HD D940a
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How to flash BLU Vivo 4.8 HD D940a?
Why reinstall the firmware?
Errors in the operation of the Android OS begin to appear.
Some installed applications do not open.
Some applications from the Play Market do not start.
The phone restarts or shuts down randomly.
The phone began to slow down a lot.
You want to update your firmware.
Where can I find the firmware?
On the official website of your 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 user data, contacts and photos and transfer it to your computer.
Insert an SD card into your phone to write the firmware to it.
Remember your smartphone model.
Fully charge your device. If the battery runs out during the firmware, the device will no longer turn on.
Find and download the archive with Firmware. And place it on the SD card.
Installing TWRP Recovery
Install the Official TWRP App from the Play Store on your phone.
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, you need to select the 'TWRP FLASH' item and give the application root rights.
On the main screen of the application, select 'Select Device', and find your phone model.
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.
Press the 'FLASH TO RECOVERY' button and confirm your choice.
When 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 memory card into your phone.
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. We open the menu, select the 'Reboot' item, and then click on the 'REBOOT RECOVERY' button. The phone will reboot into the recovery environment automatically.
Firmware via 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.
Now you can start flashing. Press the 'Install' button.
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. Press the OK button.
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 corrupted 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 firmware installation procedure is indicated by the inscription 'Successful'.
Summary: GSM frequencies: 850 900 1800 1900; Standard UMTS: 850 1900; Standard LTE: no; Type: Touch; Dimensions (W x H x D): 138.00 x 70.00 x 6.90 mm; Weight: 146.00 g; Main display: Color / Super AMOLED16M colors720 x 1280 px (4.80") 306 ppi; Display protection: -; Talk time (max.): 2G: 300 min. (5.0 h); Stand-by (max.): 2G: 250 h (10.4 days); Standard battery: Li-Ion 2000 mAh; Internal memory: 16 GB; RAM memory: 1 GB; Memory cards: no; Operating system: Android 4.2 Jelly Bean; Processor: MediaTek MT6589T; Processor clock: 1.50 GHz; Number of cores: 4; GPU: PowerVR SGX544 MP1 @357 MHz; Touchscreen: yes; DualSIM: no; Announced: -; Camera location: Back; Ph ...
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