Flash firmware on Vivo Y55l
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How to flash Vivo Y55l?
Why reinstall the firmware?
Errors in the operation of the Android OS begin to appear.
Some applications stop opening.
Some applications from the Play Market do not start.
The phone restarts or shuts down by itself.
The phone started to work slowly.
You want to update your firmware.
Where can I find the firmware?
On the official website of the 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 SD card. An SD card is needed to write firmware to it.
Remember your smartphone model.
Fully charge your device's 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.
When you start the application for the first time, you must agree to install the firmware, as well as agree to grant the application Superuser rights and click the 'OK' button.
In the next screen, select the item 'TWRP FLASH' and provide the application with root-rights.
On the main screen of the application, select 'Select Device', and find your phone model.
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'.
When the message 'Flash Completed Succsessfuly!' appears. Click 'OK'. The TWRP installation procedure is now 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 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 delete all user data from the phone, this will avoid many problems. press 'WIPE' on the home screen.
Now you can start flashing. Press the 'Install' button.
The file selection screen is displayed. 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.
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 flashing the phone will begin, 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: 850 900 2100; Standard LTE: FDD LTE: 2100, 1800, 850TDD LTE: 2300; Type: Touch; Dimensions (W x H x D): 147.90 x 72.90 x 7.50 mm; Weight: 142.00 g; Main display: Color / IPS TFT16M colors720 x 1280 px (5.20") 282 ppi; Display protection: no; Standard battery: Li-Ion 2650 mAh; Quick battery charging: no; Internal memory: 16 GB; RAM memory: 2 GB; Memory cards: yes, microSD, microSDHC, microSDXC (up to 128 GB); Operating system: Android 6.0 Marshmallow; Interface: Funtouch 2.6; Processor: Qualcomm Snapdragon 430 8937; Processor clock: 1.40 GHz; Number of cores: 8; GPU: Adreno 505; Touchscreen: yes; SAR ( ...
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