SDX55如何使用adb命令读写AT指令

adb shell

cat /dev/smd8 &# echo -e "AT\r\n" > /dev/smd8# ATOK

查看当前注册是LTE还是NSA或者SA

echo -e "AT+CPSI?\r\n" > /dev/smd8+CPSI: LTE,Online,460-01,0x1824,9398815,248,EUTRAN-BAND3,1650,5,5,