The VIVO Y20 has a 5000mAh battery. Check its health with these.
Secret codes are special numeric strings entered into the phone’s dialer to access hidden menus, test hardware, view device information, or perform quick resets. They work on most Android phones, including the VIVO Y20, but some codes may be disabled by VIVO’s Funtouch OS. How to Use Secret Codes on VIVO Y20
These codes are short alphanumeric strings that, when dialed, trigger immediate actions or open hidden menus. Whether you are a tech enthusiast, a second-hand phone buyer, or simply troubleshooting a glitch, knowing these codes can be incredibly powerful. The VIVO Y20 has a 5000mAh battery
: Open the default Phone app on your home screen. They work on most Android phones, including the
Some options require a device or a special authorization password (not available to users).
This is a "super code" for Android devices. On the VIVO Y20, dialing this may open a hidden testing menu.