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 by itself for no reason.
The phone started to work slowly.
You have decided to try a different version of Android.
Where can I find the firmware?
On the official website of the phone manufacturer.
On sites where third-party developers post custom operating systems.
What should be done before installing the firmware?
Create a backup copy of user data and transfer it to your computer.
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
Install the Official TWRP App via the Play Market. And run this application.
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.
On the next screen, select 'TWRP FLASH' and give the application root rights.
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.
When the download is finished, you need to return to the main screen of the Official TWRP App and click on the 'Select a file to flash' button. Select the file downloaded in the previous step.
Press the 'FLASH TO RECOVERY' button and confirm your choice.
When the message 'Flash Completed Succsessfuly!' appears. Click 'OK'. The TWRP installation procedure is now complete.
Transfer the necessary files to the SD memory card. Using a PC or laptop card reader, it will be much faster.
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. Open the menu and select the 'Reboot' item, and then click on the 'REBOOT RECOVERY' button.
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.
Press the 'Install' button to start the flashing.
The file selection screen appears. At the very top is the 'Storage' button, select the location where the firmware file is located.
Select the storage to which the files were copied.
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 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: Also known as: Vivo V11 Pro; Quick charging: Yes; Operating system: Android v8.1 (Oreo); Sim slots: Dual SIM, GSM GSM; Custom ui: Funtouch OS; Sim size: SIM1: Nano SIM2: Nano; Network: 4G: Available 3G: Available, 2G: Available; Fingerprint sensor: Yes; Display type: Super AMOLED; Aspect ratio: 19.5: 9; Bezelless display: Yes; Screen to body ratio claimed by the brand: 91.27 %; Pixel density: 402 ppi; Screen protection: Corning Gorilla Glass v3; Screen to body ratio calculated: 84.98 %; Screen size: 6.41 inches (16.28 cm); Screen resolution: 1080 x 2340 pixels; Touch screen: Yes Capacitive Touchscreen, Multi-touch; Loudspeaker: Yes; Fm radio: Yes; Audio jack: 3.5 mm; ...
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