Hey, i tried the flash.sh script step by step:
everything is okay until i get
xxx@xxx /cygdrive/c/adb
$ fastboot flash vendor_a vendor.img
Segmentation fault
xxx@xxx/cygdrive/c/adb
$ fastboot flash system_a system.img
error: cannot load ‘system.img’
I test the rest of it, it’s okay. Could you help me 
? @pigpig