诺基亚N9凤凰强刷失败

16G国行的，凤凰强刷显示

Flashing started
Creating product data items list
Product data items list created
Backup not required
Flashing phone
Initializing
Starting Dead Phone USB flashing
FLC flashing initialization failed, exiting...
Starting to recover the phone
Recovering phone
Initializing
Recovery flashing
Starting user data secure erase. This might take up to 16 minutes depending on memory size and type.
Do NOT disconnect the device during this process
Flashing components initialized.
User data erased
Start MCUSW flashing.
MCUSW flashing failed. Exiting...