再依次输入这4条命令:setenvbootargs"mem128MconsolettyAMA0,115200rootdevmmcblk0p3rwrootfstypeext4rootwaitselinux0rootdelay5blkdevpartsmmcblk0:1M(boot),9M(kernel),50M(rootfs),50M(userfs)"上面的命令报错setenvbootcmd"mmcread0x00x820000000x8000x4800;bootm0x82000000"这个可以运行savereset