Hikey960开发板刷写问题

改了prm_ptable.img中boot分区的大小，但没有分配ptable分区，现在刷不进ptable和xloader了，boot也刷不进。进recovery mode也重置不了，有什么解决方案吗？现在非常苦恼。。。

...
fastboot flash ptable /path/to/optee/build/../l-loader/prm_ptable.img    
Warning: skip copying ptable image avb footer (ptable partition size: 0, ptable image size: 24576).  
Sending 'ptable' (24 KB)                           OKAY [  0.008s]                                   
Writing 'ptable'                                   OKAY [  0.004s]                                   
Finished. Total time: 0.014s                                                                         
fastboot flash xloader /path/to/optee/build/../tools-images-hikey960/hisi
-sec_xloader.img
Warning: skip copying xloader image avb footer (xloader partition size: 0, xloader image size: 154752
).
Sending 'xloader' (151 KB)                         OKAY [  0.011s]
Writing 'xloader'                                  OKAY [  0.147s]
...