1. 修改recovery代码
比如mediatekcustomitek82_wet_kk ecoveryinccust_keys.h
./mk r k
./mk recoveryimage
更新recovery.img
2.修改factory代码
factory mode related program and resources are built-in to system.img
./mk mm mediate/factory
./mk snod这会生成生成system.img
更新system.img即可