K27固件的解包工具还有压包工具，经过我们测试，基本上可以解开现在发布的所有固件（包括M30,T50,C300,M25)-RK27 -K27 firmware unpack tool also pressure package tools, through our testing, basically unlock all firmware is now released (including the M30, T50, C300, M25)-RK27