Sim Toolkit App In Vivo. Currently, whatsapp, line, facebook messenger, zalo, viber messenger. Sim toolkit brings up a list of things like horoscopes, music videos, chat etc.
Import or export and delete or add new phone number. It is also easy to use and unlocks vivo android device within minutes. You can't delete the app if your phone isn't rooted.
The sim toolkit app is the control center of the knowroaming sim sticker.
So if you have any vivo phones then you can download vivo flash tool. How to download just text get menu to 9888 for free. Sent message or make a call from this app. It will let you manage your vivo device in different situations.