I took the liberty of changing the foruns's wiki (
https://wiki.mobileread.com/wiki/Kindle_Serial_Numbers) to insert a new range of Kindle devices.
Amazon started new operations in Brazil this year. It is the first time that devices are being approved here. So I ask you please to consider also the devices started with
B020 (first serial number letters) at compile time installation packages
Hope have contributed with something!
Thanks everyone!