用fastboot刷机时，发现如下错误：
target reported max download size of 2147483648 bytes
sending 'boot' (21160 KB)...
FAILED (remote: permission denied!)
finished. total time: 0.002s
请教大神，产生这种问题的原因是什么？如何解决？
target reported max download size of 2147483648 bytes 权限拒绝，检查下权限
权限拒绝，检查下权限