Yo tengo dudas de esto. Mirar lo que me dijeron en Banggood
Dear Customer,
Thanks for your email.
The item 1303933 does not support B20, but support NFC.
If you would like to buy it, could you please buy it via the link?
https://www.banggood.com/Xiaomi-Mi8-...dckf=m_Crystal
Best regards,