esto es lo que bota

ChipID:9900,EMP protocol:0301
erom_readvar: error reading unit 1/851
error while reading SIMLOCK SIGNATURE unit
phone was tampered with other software
SECURITY UNITS CAN'T BE READ !
DAMAGED FIRMWARE,GDFS OR EMPTY PHONE
phone pre-boot failed,possible RECOVERY needed.
Elapsed: 7 secs.

entonces que debo hacer