我的华为C8812成砖头了，开机提示的是：
image signature verify fail!
your appboot image may have an incorrect signature.
please update your image to a signature offlcial one.
You can remove battery for power down.
尝试重新刷机，按开机键+音量上或者开机键+音量下，完全没用，也就是根本进不了recovery了。