【12-24 提问】手机砖了，求救啊！

开不了机了，只有coolpad机型界面和震动，反复震动3-4次后就变成黑屏一直震，线刷刷不进去，一直停留在正在刷机状态，进度0%。进recovery只有重启，adb，双清和sd卡升级几个选项，都没用，下边黄字显示：
E:failed to mount /cache (Invalid argument)
E:can't mount /cache/recovery/log
E:can't open /cache/recovery/log
E:failed to mount /cache (Invalid argument)
E:can't mount /cache/recovery/last_log
E:can't open /cache/recovery/last_log
E:failed to mount /cache (Invalid argument)
E:can't mount /cache/recovery/last_install
E:can't open /cache/recovery/last_install
E:failed to mount /cache (Invalid argument)
怎么破？