一般这类问题优先检查下WIFI的ko文件是否加载成功
查看开机抓的kernel log可以看到如下信息，
说明出现大量的ko文件加载失败
行 3207: <14>[ 12.831274] .(1)[1:init]init 23: [12809][0]Command 'insmod /vendor/lib/modules/fpsgo.ko' action=boot (/vendor/etc/init/hw/init.mt6761.rc:1043) took 17ms and failed: finit_module for "/vendor/lib/modules/fpsgo.ko" failed: Required key not available行 3236: <14>[ 12.986643] .(3)[1:init]init 23: [12935][0]Command 'insmod /vendor/lib/modules/connfem.ko' action=boot (/vendor/etc/init/init.connfem.rc:2) took 46ms and failed: finit_module for "/vendor/lib/modules/connfem.ko" failed: Required key not available行 3287: <14>[ 13.108595] .(1)[1:init]init 23: [13009][0]Command 'insmod /vendor/lib/modules/wmt_drv.ko' action=boot (/vendor/etc/init/init.wmt_drv.rc:2) took 94ms and failed: finit_module for "/vendor/lib/modules/wmt_drv.ko" failed: Required key not available行 4007:
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