Z310_phone pre-boot failed,possible RECOVERY needed

[Death]

Open COM port OK
ChipID000,EMP protocol:0301
PHONE IS RED RETAIL PRODUCT
FLASH CID detected:51
Speed:921600
phone pre-boot failed,possible RECOVERY needed.
Elapsed:10 secs.
SERVER SUPPORT ENABLED.
Open COM port OK
ChipID000,EMP protocol:0301
erom_readvar: can't read all data
erom_readvar: error reading unit 0/E
error while reading security units
SECURITY UNITS CAN'T BE READ !
DAMAGED FIRMWARE/GDFS OR EMPTY PHONE
phone pre-boot failed,possible RECOVERY needed.
Elapsed:13 secs.
При этом телефон включается, IMEI верный. Пользователь жалуется на периодическое зависание и самоотключение.